3508 lines
77 KiB
Plaintext
3508 lines
77 KiB
Plaintext
# Nearby stars and star orbits out to 25 light years, supplementary
|
||
# to Celestia's stars.dat.
|
||
|
||
# Because the RECONS survey tabulation has not been updated since 2010,
|
||
# the data mostly comes from the SIMBAD database, with most parallaxes
|
||
# coming from Gaia DR2. Gaia DR2 does not provide parallaxes for the brightest
|
||
# stars, so for those the Hipparcos parallaxes have been used. In some cases
|
||
# where Gaia DR2 parallaxes exist for one of the component stars, that has been
|
||
# used; if two or more components have them, the average of the derived distances
|
||
# have been used.
|
||
|
||
# Most brown dwarfs in this file do not have Gaia parallaxes, in which case the
|
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# parallax comes from Martin et al. (2018), ApJ 867 (2), 109
|
||
# "Y Dwarf Trigonometric Parallaxes from the Spitzer Space Telescope"
|
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# https://arxiv.org/abs/1809.06479
|
||
# Other sources are appear as comments for individual star systems.
|
||
|
||
# Because the magnitude system breaks down for extremely dim stars (such as late
|
||
# T or Y dwarfs), they have been given an arbitrary but extremely low AbsMag
|
||
# value of 40, and their radii have also been set to a value around ~1 Jupiter
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# radius, if their radii are not known.
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|
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# Orbits are taken from the Sixth Catalog of Orbits of Visual Binary Stars
|
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# (http://ad.usno.navy.mil/wds/orb6.html), with other sources in the comments
|
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# below.
|
||
|
||
# For binary orbits, the direction of an orbit's node on the plane of the
|
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# sky is often unknown - the orbits given below will appear correct when
|
||
# viewed from Earth, but the true orbit may be tilted either towards or away from
|
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# the Earth.
|
||
# For a few orbits the nature of the node is known - these are
|
||
# marked with the phrase "fully specified orientation".
|
||
# Barycenter positions are based on mass estimates from the papers themselves. The
|
||
# values used are listed below.
|
||
|
||
Barycenter "Solar System Barycenter:SSB"
|
||
{
|
||
RA 0
|
||
Dec 0
|
||
Distance 0
|
||
}
|
||
|
||
0 "Sol:Sun"
|
||
{
|
||
OrbitBarycenter "Solar System Barycenter"
|
||
CustomOrbit "vsop87-sun"
|
||
|
||
SpectralType "G2V"
|
||
AbsMag 4.83
|
||
Temperature 5772
|
||
BoloCorrection -0.08
|
||
|
||
UniformRotation
|
||
{
|
||
Period 609.12 # 25.38 days
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||
Inclination 7.25
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||
AscendingNode 75.77
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||
MeridianAngle 23.00 # standard meridian
|
||
}
|
||
}
|
||
|
||
70890 # Proxima Cen
|
||
{
|
||
RA 217.42893801
|
||
Dec -62.67949189
|
||
Distance 4.2441 # 768.5004 +/- 0.2030 mas
|
||
SpectralType "M5.5Ve"
|
||
AppMag 11.09
|
||
}
|
||
|
||
# Distance from the same source as orbits
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||
Barycenter "ALF Cen:Gliese 559"
|
||
{
|
||
RA 219.8993053 # mass ratio 1.133:0.972
|
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Dec -60.8356249
|
||
Distance 4.3897 # 743 +/- 1.3 mas
|
||
}
|
||
|
||
71683 # ALF Cen A
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||
{
|
||
OrbitBarycenter "ALF Cen"
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||
SpectralType "G2V"
|
||
AppMag 0.01
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 79.91
|
||
SemiMajorAxis 10.68 # mass ratio 1.133:0.972
|
||
Eccentricity 0.52
|
||
Inclination 82.61
|
||
AscendingNode 231.75
|
||
ArgOfPericenter 280.23
|
||
MeanAnomaly 199.75
|
||
}
|
||
}
|
||
|
||
71681 # ALF Cen B
|
||
{
|
||
OrbitBarycenter "ALF Cen"
|
||
SpectralType "K1V"
|
||
AppMag 1.33
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 79.91
|
||
SemiMajorAxis 12.79 # mass ratio 1.133:0.972
|
||
Eccentricity 0.52
|
||
Inclination 82.61
|
||
AscendingNode 231.75
|
||
ArgOfPericenter 100.23
|
||
MeanAnomaly 199.75
|
||
}
|
||
}
|
||
|
||
87937 # Barnard's Star
|
||
{
|
||
RA 269.45208250
|
||
Dec 4.69336427
|
||
Distance 5.9577 # 547.4506 +/- 0.2899 mas
|
||
SpectralType "M4V"
|
||
AppMag 9.511
|
||
}
|
||
|
||
# Lazorenko & Sahlmann (2018), A&A 618, A111
|
||
# "Updated astrometry and masses of the LUH 16 brown dwarf binary"
|
||
# https://arxiv.org/abs/1808.07835
|
||
Barycenter "Luhman 16:WISE 1049-5319:WISE J104915.57-531906.1"
|
||
{
|
||
RA 162.328812
|
||
Dec -53.319467
|
||
Distance 6.5029 # 501.557 +/- 0.082 mas
|
||
}
|
||
|
||
"Luhman 16 A:WISE 1049-5319 A:WISE J104915.57-531906.1 A"
|
||
{
|
||
OrbitBarycenter "Luhman 16"
|
||
SpectralType "L7.5"
|
||
AbsMag 23 # for approximate radius in Celestia
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 27.54
|
||
SemiMajorAxis 1.64 # mass ratio 33.51J:28.55J
|
||
Eccentricity 0.34
|
||
Inclination 135.69
|
||
AscendingNode 118.66
|
||
ArgOfPericenter 136.22
|
||
MeanAnomaly 127.58
|
||
}
|
||
}
|
||
|
||
"Luhman 16 B:WISE 1049-5319 B:WISE J104915.57-531906.1 B"
|
||
{
|
||
OrbitBarycenter "Luhman 16"
|
||
SpectralType "T0.5"
|
||
AbsMag 24 # for approximate radius in Celestia
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 27.54
|
||
SemiMajorAxis 1.92 # mass ratio 33.51J:28.55J
|
||
Eccentricity 0.34
|
||
Inclination 135.69
|
||
AscendingNode 118.66
|
||
ArgOfPericenter 316.22
|
||
MeanAnomaly 127.58
|
||
}
|
||
}
|
||
|
||
"WISE 0855-0714:WISE J085510.83-071442.5"
|
||
{
|
||
RA 133.795125
|
||
Dec -7.2451389
|
||
Distance 7.264 # 449 +/- 8 mas
|
||
SpectralType "Y4"
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
# Parallax from Weinberger, et al. (2016), AJ 152 (1), 24
|
||
# "Trigonometric Parallaxes and Proper Motions of 134 Southern Late M, L,
|
||
# and T Dwarfs from the Carnegie Astrometric Planet Search Program"
|
||
# http://iopscience.iop.org/article/10.3847/0004-6256/152/1/24
|
||
"CN Leo:Gliese 406:Wolf 359"
|
||
{
|
||
RA 164.1201092
|
||
Dec 7.014540
|
||
Distance 7.8948 # 413.13 +/- 1.27 mas
|
||
SpectralType "M6V"
|
||
AppMag 13.507
|
||
}
|
||
|
||
54035 # Lalande 21185
|
||
{
|
||
RA 165.83414166
|
||
Dec 35.96988004
|
||
Distance 8.3067 # 392.64 +/- 0.67 mas
|
||
SpectralType "M2V"
|
||
AppMag 7.520
|
||
}
|
||
|
||
# Parameters from Bond et al. (2017), ApJ 840 (2), 70
|
||
# "The Sirius System and Its Astrophysical Puzzles: Hubble Space Telescope and
|
||
# Ground-based Astrometry"
|
||
# https://iopscience.iop.org/article/10.3847/1538-4357/aa6af8
|
||
Barycenter 32349 "Sirius:Alhabor:ALF CMa:9 CMa:Gliese 244:ADS 5423"
|
||
{
|
||
RA 101.28715533
|
||
Dec -16.71611586
|
||
Distance 8.608 # 378.9 +/- 1.4 mas
|
||
}
|
||
|
||
"Sirius A:Alhabor A:ALF CMa A:9 CMa A:Gliese 244 A:ADS 5423 A"
|
||
{
|
||
OrbitBarycenter "Sirius"
|
||
SpectralType "A1V"
|
||
AppMag -1.46
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 50.1284
|
||
SemiMajorAxis 9.13 # mass ratio 2.063:1.018
|
||
Eccentricity 0.59142
|
||
Inclination 97.01
|
||
AscendingNode 161.67
|
||
ArgOfPericenter 5.90
|
||
MeanAnomaly 38.99
|
||
}
|
||
}
|
||
|
||
"Sirius B:Alhabor B:ALF CMa B:9 CMa B:Gliese 244 B:ADS 5423 B"
|
||
{
|
||
OrbitBarycenter "Sirius"
|
||
SpectralType "DA2"
|
||
AppMag 8.44
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 50.1284
|
||
SemiMajorAxis 10.65 # mass ratio 2.063:1.018
|
||
Eccentricity 0.59142
|
||
Inclination 97.01
|
||
AscendingNode 161.67
|
||
ArgOfPericenter 185.90
|
||
MeanAnomaly 38.99
|
||
}
|
||
}
|
||
|
||
# Distance and radii from same source as orbit
|
||
# Rotation periods from Barnes et al. (2017), MNRAS 471 (1), 811
|
||
# "Surprisingly different star-spot distributions on the near equal-mass
|
||
# equal-rotation-rate stars in the M dwarf binary GJ 65 AB"
|
||
# https://arxiv.org/abs/1706.03979
|
||
Barycenter "Gliese 65:Luyten 726-8"
|
||
{
|
||
RA 24.75626394 # mass ratio 0.1225:0.1195
|
||
Dec -17.950491
|
||
Distance 8.791 # 373.70 +/- 2.70 mas
|
||
}
|
||
|
||
"BL Cet:Gliese 65 A:Luyten 726-8 A"
|
||
{
|
||
OrbitBarycenter "Gliese 65"
|
||
SpectralType "M5.5V"
|
||
AppMag 12.7
|
||
Radius 114790
|
||
|
||
EllipticalOrbit { # fully specified orbit
|
||
Period 26.284
|
||
SemiMajorAxis 2.72 # mass ratio 0.1225:0.1195
|
||
Eccentricity 0.62
|
||
Inclination 81.85
|
||
AscendingNode 337.40
|
||
ArgOfPericenter 346.32
|
||
MeanAnomaly 21.93
|
||
}
|
||
|
||
RotationPeriod 5.76
|
||
}
|
||
|
||
"UV Cet:Gliese 65 B:Luyten 726-8 B"
|
||
{
|
||
OrbitBarycenter "Gliese 65"
|
||
SpectralType "M6V"
|
||
AppMag 13.2
|
||
Radius 110600
|
||
|
||
EllipticalOrbit { # fully specified orbit
|
||
Period 26.284
|
||
SemiMajorAxis 2.79 # mass ratio 0.1225:0.1195
|
||
Eccentricity 0.62
|
||
Inclination 81.85
|
||
AscendingNode 337.40
|
||
ArgOfPericenter 166.32
|
||
MeanAnomaly 21.93
|
||
}
|
||
|
||
RotationPeriod 5.52
|
||
}
|
||
|
||
92403 # Ross 154
|
||
{
|
||
RA 282.45568250
|
||
Dec -23.83623710
|
||
Distance 9.7035 # 336.1228 +/- 0.0641 mas
|
||
SpectralType "M3.5Ve"
|
||
AppMag 10.495
|
||
}
|
||
|
||
"HH And:Gliese 905:Ross 248"
|
||
{
|
||
RA 355.47931716
|
||
Dec 44.17745144
|
||
Distance 10.2903 # 316.9558 +/- 0.1260 mas
|
||
SpectralType "M5.0V"
|
||
AppMag 12.28
|
||
}
|
||
|
||
16537 # Eps Eri
|
||
{
|
||
RA 53.23268735
|
||
Dec -9.45825866
|
||
Distance 10.489 # 310.94 +/- 0.16 mas
|
||
SpectralType "K2V"
|
||
AppMag 3.73
|
||
}
|
||
|
||
114046 # Lacaille 9352
|
||
{
|
||
RA 346.46681439
|
||
Dec -35.85307188
|
||
Distance 10.7211 # 304.2190 +/- 0.0451 mas
|
||
SpectralType "M2V"
|
||
AppMag 7.34
|
||
}
|
||
|
||
57548 # Ross 128
|
||
{
|
||
RA 176.93498695
|
||
Dec 0.80455693
|
||
Distance 11.0074 # 296.3073 +/- 0.0699 mas
|
||
SpectralType "M4V"
|
||
AppMag 11.153
|
||
}
|
||
|
||
# Segransan et al. (2000), A&A 364, 665
|
||
# "Accurate masses of very low mass stars. III. 16 new or improved masses"
|
||
# http://adsabs.harvard.edu/abs/2000A%26A...364..665S
|
||
Barycenter "Gliese 866:Luyten 789-6"
|
||
{
|
||
RA 339.6399000
|
||
Dec -15.2999325
|
||
Distance 11.109 # 293.6 +/- 0.9 mas
|
||
}
|
||
|
||
Barycenter "Gliese 866 A:Luyten 789-6 A"
|
||
{
|
||
OrbitBarycenter "Gliese 866"
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 2.2537
|
||
SemiMajorAxis 0.415 # mass ratio (0.1187:0.0930):0.1145
|
||
Eccentricity 0.439
|
||
Inclination 89.43
|
||
AscendingNode 358.27
|
||
ArgOfPericenter 61.70
|
||
MeanAnomaly 243.55
|
||
}
|
||
}
|
||
|
||
"EZ Aqr:Gliese 866 Aa:Luyten 789-6 Aa"
|
||
{
|
||
OrbitBarycenter "Gliese 866 A"
|
||
SpectralType "M5V"
|
||
AppMag 13.03
|
||
|
||
EllipticalOrbit {
|
||
Period 0.01037 # 3.786516 d
|
||
SemiMajorAxis 0.01244 # to match period and mass ratio 0.1187:0.0930
|
||
Inclination 90 # plane-of-sky inclination 116.5 deg
|
||
AscendingNode 2 # guess - to roughly match plane of B
|
||
}
|
||
}
|
||
|
||
"Gliese 866 Ab:Luyten 789-6 Ab"
|
||
{
|
||
OrbitBarycenter "Gliese 866 A"
|
||
SpectralType "M7V" # from mass
|
||
AppMag 15.07
|
||
|
||
EllipticalOrbit {
|
||
Period 0.01037 # 3.786516 d
|
||
SemiMajorAxis 0.01589 # to match period and mass ratio 0.1187:0.0930
|
||
Inclination 90 # guess - to match plane of B
|
||
AscendingNode 2 # guess - to match plane of B
|
||
ArgOfPericenter 180
|
||
}
|
||
}
|
||
|
||
"Gliese 866 B:Luyten 789-6 B"
|
||
{
|
||
OrbitBarycenter "Gliese 866"
|
||
SpectralType "M6V" # from apparent magnitude
|
||
AppMag 13.27
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 2.2537
|
||
SemiMajorAxis 0.768 # mass ratio (0.1187:0.0930):0.1145
|
||
Eccentricity 0.439
|
||
Inclination 89.43
|
||
AscendingNode 358.27
|
||
ArgOfPericenter 241.70
|
||
MeanAnomaly 243.55
|
||
}
|
||
}
|
||
|
||
# Physical parameters from Kervella et al. (2008), A&A 488 (2), 667
|
||
# "The radii of the nearby K5V and K7V stars 61 Cygni A & B. CHARA/FLUOR
|
||
# interferometry and CESAM2k modeling"
|
||
# https://arxiv.org/abs/0806.4049
|
||
Barycenter "61 Cyg:Gliese 820:ADS 14636"
|
||
{
|
||
RA 316.7273265 # mass ratio 0.690:0.605
|
||
Dec 38.7459723
|
||
Distance 11.402
|
||
}
|
||
|
||
104214 "61 Cyg A:V1803 Cyg:Gliese 820 A:ADS 14636 A"
|
||
{
|
||
OrbitBarycenter "61 Cyg"
|
||
SpectralType "K5V"
|
||
AppMag 5.21
|
||
Radius 462600
|
||
|
||
EllipticalOrbit {
|
||
Period 618.7
|
||
SemiMajorAxis 41.23 # mass ratio 0.69:0.605
|
||
Eccentricity 0.54
|
||
Inclination 101
|
||
AscendingNode 295
|
||
ArgOfPericenter 281
|
||
MeanAnomaly 175
|
||
}
|
||
}
|
||
|
||
104217 "61 Cyg B:Gliese 820 B:ADS 14636 B"
|
||
{
|
||
OrbitBarycenter "61 Cyg"
|
||
SpectralType "K7V"
|
||
AppMag 6.03
|
||
Radius 413900
|
||
|
||
EllipticalOrbit {
|
||
Period 618.7
|
||
SemiMajorAxis 47.02 # mass ratio 0.69:0.605
|
||
Eccentricity 0.54
|
||
Inclination 101
|
||
AscendingNode 295
|
||
ArgOfPericenter 101
|
||
MeanAnomaly 175
|
||
}
|
||
}
|
||
|
||
# Parameters from Bond et al. (2015), ApJ 813 (2), 106
|
||
# "Hubble Space Telescope Astrometry of the Procyon System"
|
||
# https://iopscience.iop.org/article/10.1088/0004-637X/813/2/106
|
||
Barycenter 37279 "Procyon:Elgomaisa:ALF CMi:10 CMi:Gliese 280:ADS 6251"
|
||
{
|
||
RA 114.82549791
|
||
Dec 5.22498756
|
||
Distance 11.444 # 250.0 +/- 0.7 mas
|
||
}
|
||
|
||
"Procyon A:Elgomaisa A:ALF CMi A:10 CMi A:Gliese 280 A:ADS 6251 A"
|
||
{
|
||
OrbitBarycenter "Procyon"
|
||
SpectralType "F5IV"
|
||
AppMag 0.37
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 40.84
|
||
SemiMajorAxis 4.32 # mass ratio 1.478:0.592
|
||
Eccentricity 0.40
|
||
Inclination 42.58
|
||
AscendingNode 25.26
|
||
ArgOfPericenter 90.19
|
||
MeanAnomaly 281.41
|
||
}
|
||
}
|
||
|
||
"Procyon B:Elgomaisa B:ALF CMi B:10 CMi B:Gliese 280 B:ADS 6251 B"
|
||
{
|
||
OrbitBarycenter "Procyon"
|
||
SpectralType "DA"
|
||
AppMag 10.7
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 40.84
|
||
SemiMajorAxis 10.79 # mass ratio 1.478:0.592
|
||
Eccentricity 0.40
|
||
Inclination 42.58
|
||
AscendingNode 25.26
|
||
ArgOfPericenter 270.19
|
||
MeanAnomaly 281.41
|
||
}
|
||
}
|
||
|
||
# masses from Mann et al. (2015), ApJ 804 (1), 64
|
||
# "How to Constrain Your M Dwarf: Measuring Effective Temperature,
|
||
# Bolometric Luminosity, Mass, and Radius"
|
||
# http://iopscience.iop.org/article/10.1088/0004-637X/804/1/64/meta
|
||
Barycenter "Gliese 725:Struve 2398:ADS 11632"
|
||
{
|
||
RA 280.6949398 # mass ratio 0.334:0.248
|
||
Dec 59.6288903
|
||
Distance 11.488
|
||
}
|
||
|
||
91768 "Gliese 725 A:Struve 2398 A:ADS 11632 A"
|
||
{
|
||
OrbitBarycenter "ADS 11632"
|
||
SpectralType "M3V"
|
||
AppMag 8.91
|
||
|
||
EllipticalOrbit {
|
||
Period 408
|
||
SemiMajorAxis 20.83 # mass ratio 0.334:0.248
|
||
Eccentricity 0.53
|
||
Inclination 111.9
|
||
AscendingNode 146.1
|
||
ArgOfPericenter 243.5
|
||
MeanAnomaly 198.5
|
||
}
|
||
}
|
||
|
||
91772 "Gliese 725 B:Struve 2398 B:ADS 11632 B"
|
||
{
|
||
OrbitBarycenter "ADS 11632"
|
||
SpectralType "M3.5V"
|
||
AppMag 9.69
|
||
|
||
EllipticalOrbit {
|
||
Period 408
|
||
SemiMajorAxis 28.06 # mass ratio 0.334:0.248
|
||
Eccentricity 0.53
|
||
Inclination 111.9
|
||
AscendingNode 146.1
|
||
ArgOfPericenter 63.5
|
||
MeanAnomaly 198.5
|
||
}
|
||
}
|
||
|
||
# Pinamonti et al. (2018), A&A 617, A104
|
||
# "The HADES RV Programme with HARPS-N at TNG. VIII. GJ15A: a multiple
|
||
# wide planetary system sculpted by binary interaction"
|
||
# https://arxiv.org/abs/1804.03476
|
||
Barycenter 1475 "Gliese 15:Groombridge 34:ADS 246"
|
||
{
|
||
RA 4.600573040 # mass ratio 0.38:0.15
|
||
Dec 44.02478402
|
||
Distance 11.619
|
||
}
|
||
|
||
"GX And:Gliese 15 A:Groombridge 34 A:ADS 246 A"
|
||
{
|
||
OrbitBarycenter "Groombridge 34"
|
||
SpectralType "M2V"
|
||
AppMag 8.13
|
||
Radius 264400
|
||
|
||
EllipticalOrbit {
|
||
Period 1230
|
||
SemiMajorAxis 26.32 # mass ratio 0.38:0.15
|
||
Eccentricity 0.53
|
||
Inclination 172
|
||
AscendingNode 194
|
||
ArgOfPericenter 75
|
||
MeanAnomaly 296
|
||
}
|
||
}
|
||
|
||
"GQ And:Gliese 15 B:Groombridge 34 B:ADS 246 B"
|
||
{
|
||
OrbitBarycenter "Groombridge 34"
|
||
SpectralType "M3.5V"
|
||
AppMag 11.04
|
||
Radius 125200
|
||
|
||
EllipticalOrbit {
|
||
Period 1230
|
||
SemiMajorAxis 66.68 # mass ratio 0.38:0.15
|
||
Eccentricity 0.53
|
||
Inclination 172
|
||
AscendingNode 194
|
||
ArgOfPericenter 255
|
||
MeanAnomaly 296
|
||
}
|
||
}
|
||
|
||
"DX Cnc:GJ 1111:Giclas 51-15"
|
||
{
|
||
RA 127.45563677
|
||
Dec 26.77600744
|
||
Distance 11.6780 # 279.2901 +/- 0.1345 mas
|
||
SpectralType "M6.5V"
|
||
AppMag 14.81
|
||
}
|
||
|
||
Barycenter "EPS Ind:Gliese 845" # orbit of A & B components unknown
|
||
{
|
||
RA 330.87262069 # mass ratio 0.732:(0.0716:0.0669)
|
||
Dec -56.7854593
|
||
Distance 11.870
|
||
}
|
||
|
||
108870 "EPS Ind A:Gliese 845 A"
|
||
{
|
||
RA 330.84022596
|
||
Dec -56.7859825
|
||
Distance 11.8686 # 274.8048 +/- 0.2494 mas
|
||
SpectralType "K5V"
|
||
AppMag 4.69
|
||
}
|
||
|
||
# Dieterich et al. (2018) "Dynamical Masses of ε Indi B and C: Two Massive
|
||
# Brown Dwarfs at the Edge of the Stellar–substellar Boundary"
|
||
# https://arxiv.org/abs/1807.09880
|
||
Barycenter "EPS Ind B:CI Ind:Gliese 845 B"
|
||
{
|
||
RA 331.0438333
|
||
Dec -56.782694
|
||
Distance 11.780 # 276.88 +/- 0.81 mas
|
||
}
|
||
|
||
"EPS Ind Ba:CI Ind A:Gliese 845 Ba"
|
||
{
|
||
OrbitBarycenter "EPS Ind B"
|
||
SpectralType "T1.5V"
|
||
Temperature 1280
|
||
AbsMag 34.5 # for approx. radius in Celestia
|
||
|
||
EllipticalOrbit {
|
||
Period 11.41
|
||
SemiMajorAxis 1.26 # mass ratio 75.0J:70.1J
|
||
Eccentricity 0.47
|
||
Inclination 77.95
|
||
AscendingNode 138.03
|
||
ArgOfPericenter 87.11
|
||
MeanAnomaly 49.82
|
||
}
|
||
}
|
||
|
||
"EPS Ind Bb:CI Ind B:Gliese 845 Bb"
|
||
{
|
||
OrbitBarycenter "EPS Ind B"
|
||
SpectralType "T6V"
|
||
Temperature 850
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
|
||
EllipticalOrbit {
|
||
Period 11.41
|
||
SemiMajorAxis 1.35 # mass ratio 75.0J:70.1J
|
||
Eccentricity 0.47
|
||
Inclination 77.95
|
||
AscendingNode 138.03
|
||
ArgOfPericenter 267.11
|
||
MeanAnomaly 49.82
|
||
}
|
||
}
|
||
|
||
8102 # Tau Cet
|
||
{
|
||
RA 26.01701426
|
||
Dec -15.93747960
|
||
Distance 11.905 # 273.96 +/- 0.17 mas
|
||
SpectralType "G8V"
|
||
AppMag 3.50
|
||
}
|
||
|
||
"GJ 1061:Luyten 372-58"
|
||
{
|
||
RA 53.99874864
|
||
Dec -44.51270146
|
||
Distance 11.9803 # 272.2446 +/- 0.0661 mas
|
||
SpectralType "M5.5V"
|
||
AppMag 13.03
|
||
}
|
||
|
||
5643 # YZ Cet
|
||
{
|
||
RA 18.12765323
|
||
Dec -16.99898925
|
||
Distance 12.1084 # 269.3628 +/- 0.0785 mas
|
||
SpectralType "M4.0Ve"
|
||
AppMag 12.074
|
||
}
|
||
|
||
36208 # Luyten's Star
|
||
{
|
||
RA 111.85208229
|
||
Dec 5.22578699
|
||
Distance 12.402 # 262.98 +/- 1.39 mas
|
||
SpectralType "M3.5V"
|
||
AppMag 9.872
|
||
}
|
||
|
||
"Teegarden's Star:SO0253+1652:SO025300.5+165258"
|
||
{
|
||
RA 43.25371387
|
||
Dec 16.88128947
|
||
Distance 12.4957 # 261.0147 +/- 0.2690 mas
|
||
SpectralType "M7.0V"
|
||
AppMag 15.40
|
||
}
|
||
|
||
24186 # Kapteyn's Star
|
||
{
|
||
RA 77.91912216
|
||
Dec -45.01843165
|
||
Distance 12.8294 # 254.2263 +/- 0.0263 mas
|
||
SpectralType "M1VI"
|
||
AppMag 8.853
|
||
}
|
||
|
||
105090 # Lacaille 8760
|
||
{
|
||
RA 319.31362024
|
||
Dec -38.86736390
|
||
Distance 12.9515 # 251.8295 +/- 0.0559 mas
|
||
SpectralType "M1V"
|
||
AppMag 6.68
|
||
}
|
||
|
||
# used Gaia DR2 parallax for A
|
||
# parameters from Vigan et al. (2012), A&A 540, A131
|
||
# "High-contrast spectroscopy of SCR J1845-6357 B"
|
||
# https://www.aanda.org/articles/aa/abs/2012/04/aa18426-11/aa18426-11.html
|
||
Barycenter "SCR 1845-6357"
|
||
{
|
||
RA 281.27187786
|
||
Dec -63.96318293
|
||
Distance 13.0505 # 249.9187 +/- 0.1551 mas
|
||
}
|
||
|
||
"SCR 1845-6357 A"
|
||
{
|
||
OrbitBarycenter "SCR 1845-6357"
|
||
SpectralType "M8.5V"
|
||
AppMag 17.40
|
||
|
||
EllipticalOrbit {
|
||
Period 24 # estimate
|
||
SemiMajorAxis 1.6 # estimated mass ratio 0.07:0.045
|
||
ArgOfPericenter 180
|
||
}
|
||
}
|
||
|
||
"SCR 1845-6357 B"
|
||
{
|
||
OrbitBarycenter "SCR 1845-6357"
|
||
SpectralType "T6V"
|
||
AbsMag 33.5 # for approximate radius in Celestia
|
||
|
||
EllipticalOrbit {
|
||
Period 24 # estimate
|
||
SemiMajorAxis 2.4 # estimated mass ratio 0.07:0.045
|
||
}
|
||
}
|
||
|
||
Barycenter 110893 "Gliese 860:Kruger 60:ADS 15972"
|
||
{
|
||
RA 336.9985152 # mass ratio 0.30:0.17
|
||
Dec 57.69579262 # only used parallax of A
|
||
Distance 13.0780 # 249.3926 +/- 0.1653 mas
|
||
}
|
||
|
||
1000923991 "Gliese 860 A:Kruger 60 A:ADS 15972 A"
|
||
{
|
||
OrbitBarycenter "Kruger 60"
|
||
SpectralType "M3V"
|
||
AppMag 9.93
|
||
|
||
EllipticalOrbit {
|
||
Period 44.581
|
||
SemiMajorAxis 3.48 # mass ratio 0.30:0.17
|
||
Eccentricity 0.408
|
||
Inclination 37.20
|
||
AscendingNode 129.48
|
||
ArgOfPericenter 262.00
|
||
MeanAnomaly 240.36
|
||
}
|
||
}
|
||
|
||
2000923991 "DO Cep:Gliese 860 B:Kruger 60 B:ADS 15972 B"
|
||
{
|
||
OrbitBarycenter "Kruger 60"
|
||
SpectralType "M4V"
|
||
AppMag 11.41
|
||
|
||
EllipticalOrbit {
|
||
Period 44.67
|
||
SemiMajorAxis 6.15 # mass ratio 0.30:0.17
|
||
Eccentricity 0.408
|
||
Inclination 37.20
|
||
AscendingNode 129.48
|
||
ArgOfPericenter 82.00
|
||
MeanAnomaly 240.36
|
||
}
|
||
}
|
||
|
||
"DENIS 1048-3956:DENIS J104814.6-395606:RECONS 2"
|
||
{
|
||
RA 162.06072261
|
||
Dec -39.93523423
|
||
Distance 13.1932 # 247.2157 +/- 0.1236 mas
|
||
SpectralType "M9V"
|
||
AppMag 17.532
|
||
}
|
||
|
||
# masses and parallaxes from Benedict et al. (2016), AJ 152 (5), 141
|
||
# "The Solar Neighborhood. XXXVII: The Mass-Luminosity Relation for Main-sequence
|
||
# M Dwarfs"
|
||
# http://iopscience.iop.org/article/10.3847/0004-6256/152/5/141/meta
|
||
Barycenter 30920 "Gliese 234:Ross 614"
|
||
{
|
||
RA 97.34746466
|
||
Dec -2.81355664
|
||
Distance 13.4239 # 242.9659 +/- 0.8833 mas
|
||
}
|
||
|
||
"V577 Mon:Gliese 234 A:Ross 614 A"
|
||
{
|
||
OrbitBarycenter "Ross 614"
|
||
SpectralType "M4.5V"
|
||
AppMag 11.15
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 16.63
|
||
SemiMajorAxis 1.48 # mass ratio 0.223:0.109
|
||
Eccentricity 0.38
|
||
Inclination 93.87
|
||
AscendingNode 322.71
|
||
ArgOfPericenter 167.29
|
||
MeanAnomaly 15.85
|
||
}
|
||
}
|
||
|
||
"Gliese 234 B:Ross 614 B"
|
||
{
|
||
OrbitBarycenter "Ross 614"
|
||
SpectralType "M7V"
|
||
AppMag 14.23
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 16.63
|
||
SemiMajorAxis 3.02 # mass ratio 0.223:0.109
|
||
Eccentricity 0.38
|
||
Inclination 93.87
|
||
AscendingNode 322.71
|
||
ArgOfPericenter 347.29
|
||
MeanAnomaly 15.85
|
||
}
|
||
}
|
||
|
||
# low-quality parallax from Theissen, C. A. (2018), ApJ 862 (2), 173
|
||
# "Parallaxes of Cool Objects with WISE: Filling in for Gaia"
|
||
# http://iopscience.iop.org/article/10.3847/1538-4357/aaccfa/meta
|
||
"UGPS 0722-0540:UGPS J072227.51-054031.2"
|
||
{
|
||
RA 110.6161250
|
||
Dec -5.6753056
|
||
Distance 13.433 # 242.8 +/- 2.40 mas
|
||
SpectralType "T9V"
|
||
Temperature 505
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
# masses and parallaxes from Benedict et al. (2016), AJ 152 (5), 141
|
||
# "The Solar Neighborhood. XXXVII: The Mass-Luminosity Relation for Main-sequence
|
||
# M Dwarfs"
|
||
# http://iopscience.iop.org/article/10.3847/0004-6256/152/5/141/meta
|
||
Barycenter "Gliese 473:Wolf 424"
|
||
{
|
||
RA 188.3223395
|
||
Dec 9.0210534
|
||
Distance 13.850 # 235.5 +/- 2.9 mas
|
||
}
|
||
|
||
"Gliese 473 A:Wolf 424 A"
|
||
{
|
||
OrbitBarycenter "Wolf 424"
|
||
SpectralType "M5.5V"
|
||
AppMag 13.18
|
||
|
||
EllipticalOrbit {
|
||
Period 15.81
|
||
SemiMajorAxis 1.86 # mass ratio 0.124:0.113
|
||
Eccentricity 0.30
|
||
Inclination 29.15
|
||
AscendingNode 357.44
|
||
ArgOfPericenter 80.72
|
||
MeanAnomaly 172.43
|
||
}
|
||
}
|
||
|
||
"FL Vir:Gliese 473 B:Wolf 424 B"
|
||
{
|
||
OrbitBarycenter "Wolf 424"
|
||
SpectralType "M5.5V"
|
||
AppMag 13.17
|
||
|
||
EllipticalOrbit {
|
||
Period 15.81
|
||
SemiMajorAxis 2.04 # mass ratio 0.124:0.113
|
||
Eccentricity 0.30
|
||
Inclination 29.15
|
||
AscendingNode 357.44
|
||
ArgOfPericenter 260.72
|
||
MeanAnomaly 172.43
|
||
}
|
||
}
|
||
|
||
80824 # Wolf 1061
|
||
{
|
||
RA 247.57524250
|
||
Dec -12.66258979
|
||
Distance 14.0458 # 232.2095 +/- 0.0630 mas
|
||
SpectralType "M3V"
|
||
AppMag 10.072
|
||
}
|
||
|
||
3829 # van Maanen's Star
|
||
{
|
||
RA 12.29124338
|
||
Dec 5.38860920
|
||
Distance 14.0744 # 231.7375 +/- 0.0380 mas
|
||
SpectralType "DZ7.5"
|
||
AppMag 12.374
|
||
}
|
||
|
||
439 # Gliese 1
|
||
{
|
||
RA 1.35178251
|
||
Dec -37.35736228
|
||
Distance 14.1725 # 230.1331 +/- 0.0600 mas
|
||
SpectralType "M2V"
|
||
AppMag 8.562
|
||
}
|
||
|
||
# parameters and low-quality parallax from Martin et al. (2018)
|
||
"WISE 1639-6847:WISE J163940.83-684738.6"
|
||
{
|
||
RA 249.921736
|
||
Dec -68.797280
|
||
Distance 14.302 # 228.05 +/- 8.93 mas
|
||
SpectralType "Y0Vpec"
|
||
Temperature 370 # approx.
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
"TZ Ari:Gliese 83.1:GJ 9066:Luyten 1159-16"
|
||
{
|
||
RA 30.05398414
|
||
Dec 13.05195036
|
||
Distance 14.5843 # 223.6349 +/- 0.1066 mas
|
||
SpectralType "M4.5V"
|
||
AppMag 12.298
|
||
}
|
||
|
||
85523 # Gliese 674
|
||
{
|
||
RA 262.16643984
|
||
Dec -46.89519257
|
||
Distance 14.8387 # 219.8012 +/- 0.0487 mas
|
||
SpectralType "M3V"
|
||
AppMag 9.407
|
||
}
|
||
|
||
86162 # Gliese 687
|
||
{
|
||
RA 264.10791321
|
||
Dec 68.33914004
|
||
Distance 14.8401 # 219.7807 +/- 0.0324 mas
|
||
SpectralType "M3.0V"
|
||
AppMag 9.15
|
||
}
|
||
|
||
"GJ 3622:LP 731-58"
|
||
{
|
||
RA 162.05255937
|
||
Dec -11.33600262
|
||
Distance 14.8851 # 219.1159 +/- 0.1567 mas
|
||
SpectralType "M6.5V"
|
||
AppMag 15.784
|
||
}
|
||
|
||
57367 # Luyten 145-141
|
||
{
|
||
RA 176.42882111
|
||
Dec -64.84151780
|
||
Distance 15.1182 # 215.7373 +/- 0.0324 mas
|
||
SpectralType "DQ6"
|
||
AppMag 11.513
|
||
}
|
||
|
||
113020 # Gliese 876
|
||
{
|
||
RA 343.31971796
|
||
Dec -14.26369539
|
||
Distance 15.2504 # 213.8669 +/- 0.0758 mas
|
||
SpectralType "M3.5V"
|
||
AppMag 10.192
|
||
}
|
||
|
||
# masses from Benedict et al. (2016), AJ 152 (5), 141
|
||
# "The Solar Neighborhood. XXXVII: The Mass-Luminosity Relation for Main-sequence
|
||
# M Dwarfs"
|
||
# http://iopscience.iop.org/article/10.3847/0004-6256/152/5/141/meta
|
||
Barycenter "GJ 1245" # orbit of A & B components unknown
|
||
{
|
||
RA 298.477317 # mass ratio (0.111:0.076):0.10
|
||
Dec 44.415377
|
||
Distance 15.268
|
||
}
|
||
|
||
Barycenter "GJ 1245 A"
|
||
{
|
||
RA 298.47700882
|
||
Dec 44.41426155
|
||
Distance 15.3029 # 213.1329 +/- 0.5737 mas
|
||
}
|
||
|
||
"V1581 Cyg:GJ 1245 Aa"
|
||
{
|
||
OrbitBarycenter "GJ 1245 A"
|
||
SpectralType "M5.5V"
|
||
AppMag 13.46
|
||
|
||
EllipticalOrbit {
|
||
Period 16.84
|
||
SemiMajorAxis 1.53 # mass ratio 0.111:0.076
|
||
Eccentricity 0.33
|
||
Inclination 70.45
|
||
AscendingNode 37.06
|
||
ArgOfPericenter 208.50
|
||
MeanAnomaly 2.21
|
||
}
|
||
}
|
||
|
||
"GJ 1245 Ab"
|
||
{
|
||
OrbitBarycenter "GJ 1245 A"
|
||
SpectralType "M7.5V"
|
||
AppMag 16.75
|
||
|
||
EllipticalOrbit {
|
||
Period 16.84
|
||
SemiMajorAxis 2.23 # mass ratio 0.111:0.076
|
||
Eccentricity 0.33
|
||
Inclination 70.45
|
||
AscendingNode 37.06
|
||
ArgOfPericenter 28.50
|
||
MeanAnomaly 2.21
|
||
}
|
||
}
|
||
|
||
"GJ 1245 B"
|
||
{
|
||
RA 298.47974513
|
||
Dec 44.41504008
|
||
Distance 15.2034 # 214.5285 +/- 0.0824 mas
|
||
SpectralType "M6V"
|
||
AppMag 13.99
|
||
}
|
||
|
||
"GJ 3618:Luyten 143-23"
|
||
{
|
||
RA 161.08847255
|
||
Dec -61.20979537
|
||
Distance 15.7703 # 206.8172 +/- 0.0735 mas
|
||
SpectralType "M5.0V"
|
||
AppMag 13.920
|
||
}
|
||
|
||
"GJ 1002"
|
||
{
|
||
RA 1.67998846
|
||
Dec -7.53806229
|
||
Distance 15.8164 # 206.2134 +/- 0.1281 mas
|
||
SpectralType "M5.5V"
|
||
Radius 122000 # approx. for class
|
||
AppMag 13.837
|
||
}
|
||
|
||
# masses from Mann et al. (2015), ApJ 804 (1), 64
|
||
# "How to Constrain Your M Dwarf: Measuring Effective Temperature,
|
||
# Bolometric Luminosity, Mass, and Radius"
|
||
# http://iopscience.iop.org/article/10.1088/0004-637X/804/1/64/meta
|
||
Barycenter 54211 "Gliese 412:Lalande 21258" # orbits of A & B unknown
|
||
{
|
||
RA 166.3709615 # mass ratio 0.39:0.0952
|
||
Dec 43.52576672
|
||
Distance 15.846
|
||
}
|
||
|
||
"Gliese 412 A:Lalande 21258 A"
|
||
{
|
||
RA 166.36907492
|
||
Dec 43.52677540
|
||
Distance 15.812 # 206.27 +/- 1.00 mas
|
||
SpectralType "M1.0Ve"
|
||
AppMag 8.780
|
||
}
|
||
|
||
"WX UMa:Gliese 412 B:Lalande 21258 B"
|
||
{
|
||
RA 166.37869018
|
||
Dec 43.52163453
|
||
Distance 15.9834 # 204.0592 +/- 0.1687 mas
|
||
SpectralType "M6.0V"
|
||
AppMag 14.45
|
||
}
|
||
|
||
49908 # Groombridge 1618
|
||
{
|
||
RA 152.84225009
|
||
Dec 49.45423588
|
||
Distance 15.8797 # 205.3917 +/- 0.0342 mas
|
||
SpectralType "K6Ve"
|
||
AppMag 6.61
|
||
}
|
||
|
||
"DENIS 0255-4700:DENIS-P J025503.5-470050:2MASS 0255-4700:2MASS J02550357-4700509"
|
||
{
|
||
RA 43.76539377
|
||
Dec -47.01426260
|
||
Distance 15.8847 # 205.3266 +/- 0.2545 mas
|
||
SpectralType "L9V"
|
||
Radius 60000 # approx.
|
||
AppMag 22.921
|
||
}
|
||
|
||
106440 # Gliese 832
|
||
{
|
||
RA 323.39156247
|
||
Dec -49.00900096
|
||
Distance 16.1939 # 201.4073 +/- 0.0429 mas
|
||
SpectralType "M2V"
|
||
Radius 306000 # approx. for class
|
||
AppMag 8.672
|
||
}
|
||
|
||
1001741423 "AD Leo:Gliese 388"
|
||
{
|
||
RA 154.90117001
|
||
Dec 19.87000390
|
||
Distance 16.1970 # 201.3683 +/- 0.0679 mas
|
||
SpectralType "M4Vae"
|
||
Radius 180000 # approx. for class
|
||
AppMag 9.52
|
||
}
|
||
|
||
# mass of component A from Ma et al. (2018), MNRAS 480 (2), 2411
|
||
# "The first super-Earth detection from the high cadence and high radial velocity
|
||
# precision Dharma Planet Survey"
|
||
# https://arxiv.org/abs/1807.07098
|
||
Barycenter 19849 "Keid:OMI2 Eri:40 Eri:Gliese 166:ADS 3093" # Orbits of A & (BC) unknown
|
||
{
|
||
RA 63.82884851 # mass ratio 0.78:(0.573:0.2036)
|
||
Dec -7.654310215
|
||
Distance 16.305
|
||
}
|
||
|
||
"Keid A:OMI2 Eri A:40 Eri A:Gliese 166 A:ADS 3093 A"
|
||
{
|
||
RA 63.81799886
|
||
Dec -7.65287169
|
||
Distance 16.257 # 200.62 +/- 0.23 mas
|
||
SpectralType "K0V"
|
||
AppMag 4.43
|
||
}
|
||
|
||
Barycenter "Keid BC:OMI2 Eri BC:40 Eri BC:Gliese 166 BC"
|
||
{
|
||
RA 63.83974566
|
||
Dec -7.65575504
|
||
Distance 16.3523 # 199.4552 mas
|
||
}
|
||
|
||
# radius from Bond et al. (2017), ApJ 848 (1), 16
|
||
# "Astrophysical Implications of a New Dynamical Mass for the
|
||
# Nearby White Dwarf 40 Eridani B"
|
||
# http://iopscience.iop.org/article/10.3847/1538-4357/aa8a63/meta
|
||
"Keid B:OMI2 Eri B:40 Eri B:Gliese 166 B:ADS 3093 B"
|
||
{
|
||
OrbitBarycenter "Keid BC"
|
||
SpectralType "DA3"
|
||
Radius 9100
|
||
AppMag 9.53
|
||
|
||
EllipticalOrbit {
|
||
Period 222.74
|
||
SemiMajorAxis 8.855 # mass ratio 0.573:0.2036
|
||
Eccentricity 0.451
|
||
Inclination 83.57
|
||
AscendingNode 216.91
|
||
ArgOfPericenter 77.11
|
||
MeanAnomaly 245.29
|
||
}
|
||
}
|
||
|
||
"Keid C:OMI2 Eri C:40 Eri C:DY Eri:Gliese 166 C:ADS 3093 C"
|
||
{
|
||
OrbitBarycenter "Keid BC"
|
||
SpectralType "M4.5V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 11.17
|
||
|
||
EllipticalOrbit {
|
||
Period 222.74
|
||
SemiMajorAxis 24.92 # mass ratio 0.573:0.2036
|
||
Eccentricity 0.451
|
||
Inclination 83.57
|
||
AscendingNode 216.91
|
||
ArgOfPericenter 257.11
|
||
MeanAnomaly 245.29
|
||
}
|
||
}
|
||
|
||
86214 # Gliese 682
|
||
{
|
||
RA 264.26527385
|
||
Dec -44.31921360
|
||
Distance 16.3320 # 199.7031 +/- 0.0832 mas
|
||
SpectralType "M3.5V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 10.946
|
||
}
|
||
|
||
112460 # EV Lac
|
||
{
|
||
RA 341.70721323
|
||
Dec 44.33399228
|
||
Distance 16.4716 # 198.0112 +/- 0.0380 mas
|
||
SpectralType "M4.0V"
|
||
Radius 225000 # approx. for class
|
||
AppMag 10.26
|
||
}
|
||
|
||
# Eggenberger et al. (2008), A&A 482 (2), 631
|
||
# "Analysis of 70 Ophiuchi AB including seismic constraints"
|
||
# https://www.aanda.org/articles/aa/abs/2008/17/aa8624-07/aa8624-07.html
|
||
Barycenter 88601 "70 Oph:Gliese 702:Struve 2272:ADS 11046"
|
||
{
|
||
RA 271.36368827
|
||
Dec 2.50009883
|
||
Distance 16.580 # 196.72 +/- 0.83 mas
|
||
}
|
||
|
||
1052130434 "70 Oph A:Gliese 702 A:Struve 2272 A:ADS 11046 A"
|
||
{
|
||
OrbitBarycenter "70 Oph"
|
||
SpectralType "K0V"
|
||
AppMag 4.13
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 88.44
|
||
SemiMajorAxis 10.37 # mass ratio 0.89:0.73
|
||
Eccentricity 0.50
|
||
Inclination 28.75
|
||
AscendingNode 73.59
|
||
ArgOfPericenter 285.57
|
||
MeanAnomaly 63.92
|
||
}
|
||
}
|
||
|
||
1052120434 "70 Oph B:Gliese 702 B:Struve 2272 B:ADS 11046 B"
|
||
{
|
||
OrbitBarycenter "70 Oph"
|
||
SpectralType "K4V"
|
||
AppMag 6.07
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 88.44
|
||
SemiMajorAxis 12.64 # mass ratio 0.89:0.73
|
||
Eccentricity 0.50
|
||
Inclination 28.75
|
||
AscendingNode 73.59
|
||
ArgOfPericenter 105.57
|
||
MeanAnomaly 63.92
|
||
}
|
||
}
|
||
|
||
# rotational parameters from Bouchaud et al. (2020), A&A 633, A78
|
||
# "A realistic two-dimensional model of Altair"
|
||
# https://arxiv.org/abs/1912.03138
|
||
97649 # Altair
|
||
{
|
||
RA 297.69582730
|
||
Dec 8.86832120
|
||
Distance 16.730 # 194.95 +/- 0.57
|
||
SpectralType "A7IV"
|
||
AppMag 0.76
|
||
Radius 1396700 # equatorial radius
|
||
|
||
SemiAxes [ 1 0.779 1 ] # equatorial radius 28.3% greater than polar
|
||
|
||
UniformRotation
|
||
{
|
||
Period 7.79 # from equatorial rotational velocity
|
||
Inclination 81.21 # inclination (i) = 50.65 deg
|
||
AscendingNode 246.44 # orientation (alpha) = 301.13 deg
|
||
}
|
||
}
|
||
|
||
# Orbit from Tokovinin et al. (2020), AJ 160 (1), 7
|
||
# "Speckle Interferometry at SOAR in 2019"
|
||
# https://arxiv.org/abs/2005.05305
|
||
# Distance from average of distances from Gaia DR2 parallax for A and B
|
||
Barycenter "GJ 1116"
|
||
{
|
||
RA 134.56295790 # mass ratio 0.11:0.10
|
||
Dec 19.76308611 # A: 194.7225 +/- 0.1251 mas
|
||
Distance 16.735 # B: 195.0836 +/- 0.1754 mas
|
||
}
|
||
|
||
"EI Cnc:GJ 1116 A"
|
||
{
|
||
OrbitBarycenter "GJ 1116"
|
||
SpectralType "M8Ve"
|
||
AppMag 13.93
|
||
|
||
EllipticalOrbit {
|
||
Period 134.4
|
||
SemiMajorAxis 7.902 # mass ratio 0.11:0.10
|
||
Eccentricity 0.661
|
||
Inclination 84.9
|
||
AscendingNode 59.9
|
||
ArgOfPericenter 22.9
|
||
MeanAnomaly 343.3
|
||
}
|
||
}
|
||
|
||
"GJ 1116 B:LP 426-40"
|
||
{
|
||
OrbitBarycenter "GJ 1116"
|
||
SpectralType "M7V"
|
||
AppMag 13.75
|
||
|
||
EllipticalOrbit {
|
||
Period 134.4
|
||
SemiMajorAxis 8.692 # mass ratio 0.11:0.10
|
||
Eccentricity 0.661
|
||
Inclination 84.9
|
||
AscendingNode 59.9
|
||
ArgOfPericenter 202.9
|
||
MeanAnomaly 343.3
|
||
}
|
||
}
|
||
|
||
# rotation period from Burningham et al. (2016), MNRAS 463 (2), 2202
|
||
# "A LOFAR mini-survey for low-frequency radio emission from the nearest brown
|
||
# dwarfs"
|
||
# https://academic.oup.com/mnras/article/463/2/2202/2892466
|
||
"WISE 1506+7027:WISE J150649.97+702736.1"
|
||
{
|
||
RA 226.71850107
|
||
Dec 70.45697728
|
||
Distance 16.8516 # 193.5457 +/- 0.9420 mas
|
||
AppMag 17.48 # calculated from J, H, and Ks bands
|
||
SpectralType "T6"
|
||
Radius 60000 # approx.
|
||
RotationPeriod 1.74
|
||
Temperature 1000
|
||
}
|
||
|
||
1006050134 "GJ 3379:Giclas 99-49"
|
||
{
|
||
RA 90.01459942
|
||
Dec 2.70655466
|
||
Distance 16.9813 # 192.0675 +/- 0.0715 mas
|
||
SpectralType "M3.5Ve"
|
||
Radius 225000 # approx. for class
|
||
AppMag 11.31
|
||
}
|
||
|
||
"WISE J0817-6155:WISEP J081729.74-615504.1"
|
||
{
|
||
RA 124.37499532
|
||
Dec -61.92101733
|
||
Distance 17.0290 # 191.5301 +/- 0.6037 mas
|
||
SpectralType "T6V"
|
||
AbsMag 34 # for approximate radius in Celestia
|
||
}
|
||
|
||
57544 # Gliese 445
|
||
{
|
||
RA 176.92245210
|
||
Dec 78.69116094
|
||
Distance 17.1424 # 190.2625 +/- 0.0475 mas
|
||
SpectralType "M4.0Ve"
|
||
Radius 181000 # approx. for class
|
||
AppMag 10.84
|
||
}
|
||
|
||
# magnitude from Perez Garrido et al. (2014), A&A 567, A6
|
||
# "2MASS J154043.42-510135.7: a new addition to the 5 pc population"
|
||
# https://www.aanda.org/articles/aa/abs/2014/07/aa23615-14/aa23615-14.html
|
||
"WISE 1540-5101:WISE J154045.65-510139.2"
|
||
{
|
||
RA 235.18140398
|
||
Dec -51.02665765
|
||
Distance 17.3441 # 191.5301 +/- 0.6037 mas
|
||
SpectralType "M6.5"
|
||
Radius 83500 # approx. for class
|
||
AppMag 15.26 # measured w/ ESO Faint Object Spectrograph and Camera
|
||
}
|
||
|
||
# Leggett et al. (2009), ApJ 695, 1517
|
||
# "The phyical properties of four 600K T dwarfs."
|
||
# http://iopscience.iop.org/article/10.1088/0004-637X/695/2/1517/meta
|
||
# unresolved binary; separation and orbit unknown
|
||
"2MASS 0939-2448 A:2MASS J09393548-2448279 A"
|
||
{
|
||
RA 144.897865
|
||
Dec -24.807761
|
||
Distance 17.414 # 187.30 +/- 4.60 mas
|
||
SpectralType "T8V"
|
||
Temperature 600
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
"2MASS 0939-2448 B:2MASS J09393548-2448279 B"
|
||
{
|
||
RA 144.897885
|
||
Dec -24.807761
|
||
Distance 17.414 # 187.30 +/- 4.60 mas
|
||
SpectralType "T8V"
|
||
Temperature 600
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
"GJ 3323:LP 656-38:RECONS 3"
|
||
{
|
||
RA 75.48927544
|
||
Dec -6.94621441
|
||
Distance 17.5331 # 186.0231 +/- 0.0590
|
||
SpectralType "M4.0Ve"
|
||
Radius 180000 # approx. for class
|
||
AppMag 12.196
|
||
}
|
||
|
||
67155 # Lalande 25372
|
||
{
|
||
RA 206.43239772
|
||
Dec 14.89152033
|
||
Distance 17.7274 # 183.9836 +/- 0.0509
|
||
SpectralType "M2V"
|
||
Radius 306000 # approx. for class
|
||
AppMag 8.50
|
||
}
|
||
|
||
# mass ratio from Sahu et al. (2017), Science 356 (6342), 1046
|
||
# "Relativistic deflection of background starlight measures the mass of
|
||
# a nearby white dwarf star"
|
||
# https://arxiv.org/abs/1706.02037
|
||
# orbit listed in Sixth Orbit Catalogue is of poor quality, so unused
|
||
Barycenter 21088 "Gliese 169.1:Stein 2051"
|
||
{
|
||
RA 67.79800245 # mass ratio MB/MA 2.07
|
||
Dec 58.97707796
|
||
Distance 18.020
|
||
}
|
||
|
||
1004123744 "Gliese 169.1 A:Stein 2051 A"
|
||
{
|
||
RA 67.79795272
|
||
Dec 58.97706349
|
||
Distance 18.0774 # 180.4215 +/- 0.5863 mas
|
||
SpectralType "M4V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 10.977
|
||
}
|
||
|
||
1020623744 "Gliese 169.1 B:Stein 2051 B"
|
||
{
|
||
RA 67.80237894
|
||
Dec 58.97813685
|
||
Distance 17.9917 # 181.2815 +/- 0.0450 mas
|
||
SpectralType "DC5"
|
||
AppMag 11.19
|
||
}
|
||
|
||
33226 # Wolf 294
|
||
{
|
||
RA 103.70399048
|
||
Dec 33.26817738
|
||
Distance 18.2043 # 179.1642 +/- 0.0632 mas
|
||
SpectralType "M3V"
|
||
Radius 270000 # approx. for class
|
||
AppMag 10.11
|
||
}
|
||
|
||
103039 # LP 816-60
|
||
{
|
||
RA 313.13756964
|
||
Dec -16.97472438
|
||
Distance 18.3106 # from 178.1243 +/- 0.0849 mas
|
||
SpectralType "M4V"
|
||
Radius 181000 # approx. for class
|
||
AppMag 11.458
|
||
}
|
||
|
||
# parallax from Faherty et al. (2012), ApJ 752, (1), 56
|
||
# "The Brown Dwarf Kinematics Project (BDKP). III. Parallaxes for 70 Ultracool Dwarfs"
|
||
# http://iopscience.iop.org/article/10.1088/0004-637X/752/1/56/meta
|
||
# radius and temperature from Line et al. (2017), ApJ 848 (2), 83
|
||
# "Uniform Atmospheric Retrieval Analysis of Ultracool Dwarfs. II. Properties
|
||
# of 11 T dwarfs"
|
||
# http://iopscience.iop.org/0004-637X/848/2/83/
|
||
"2MASS 1114-2618:2MASS J11145133-2618235"
|
||
{
|
||
RA 168.713904
|
||
Dec -26.306544
|
||
Distance 18.45 # 176.8 +/- 7.0 mas
|
||
SpectralType "T7.5V"
|
||
Temperature 680
|
||
Radius 64000
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
# parallax from Marsh et al. (2013), ApJ 762 (2), 119
|
||
# "Parallaxes and Proper Motions of Ultracool Brown Dwarfs of Spectral
|
||
# Types Y and Late T"
|
||
# http://iopscience.iop.org/article/10.1088/0004-637X/762/2/119/meta
|
||
# rotation period, radius from Burningham et al. (2016), MNRAS 463, 2
|
||
# "A LOFAR mini-survey for low-frequency radio emission from the nearest brown dwarfs"
|
||
# https://academic.oup.com/mnras/article/463/2/2202/2892466
|
||
"WISE 1741+2553:WISE J174124.25+255319.6"
|
||
{
|
||
RA 265.352586
|
||
Dec 25.892878
|
||
Distance 18.53 # 176 +/- 25 mas
|
||
SpectralType "T9V"
|
||
Temperature 620
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
RotationPeriod 2
|
||
}
|
||
|
||
"2MASS 1835+3259:2MASS J18353790+3259545"
|
||
{
|
||
RA 278.90783482
|
||
Dec 32.99814204
|
||
Distance 18.5501 # from 175.8244 +/- 0.0905 mas
|
||
SpectralType "M8.5V"
|
||
Radius 66000 # approx. for class
|
||
AppMag 18.27
|
||
}
|
||
|
||
25878 # Wolf 1453
|
||
{
|
||
RA 82.86414936
|
||
Dec -3.67722821
|
||
Distance 18.5919 # from 175.4287 +/- 0.0672 mas
|
||
SpectralType "M1.5Ve"
|
||
Radius 324000 # approx. for class
|
||
AppMag 7.968
|
||
}
|
||
|
||
# coordinates, parallax from Dupuy & Liu (2012), ApJS 201 (2), 19
|
||
# "The Hawaii Infrared Parallax Program. I. Ultracool Binaries and the L/T Transition"
|
||
# http://iopscience.iop.org/article/10.1088/0067-0049/201/2/19/meta
|
||
"2MASS 0415-0935:2MASS J04151954-0935066"
|
||
{
|
||
RA 63.8381022
|
||
Dec -9.5835266
|
||
Distance 18.62 # 175.2 +/- 1.7 mas
|
||
SpectralType "T8.0V"
|
||
Temperature 750
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
96100 # Sig Dra
|
||
{
|
||
RA 293.08995958
|
||
Dec 69.66117632
|
||
Distance 18.769 # 173.77 +/- 0.18 mas
|
||
SpectralType "K0V"
|
||
AppMag 4.680
|
||
}
|
||
|
||
# Orbit from Brandt et al. (2019), eprint arXiv 1910.01652
|
||
# "A Dynamical Mass of 70 ± 5 Jupiter Masses for Gliese 229B, the First Imaged T Dwarf"
|
||
# https://arxiv.org/abs/1910.01652
|
||
Barycenter 29295 "Gliese 229:Luyten 668-21:LPM 230"
|
||
{
|
||
RA 92.64484913 # mass ratio 0.556:0.05
|
||
Dec -21.86626696
|
||
Distance 18.7775 # 173.6955 +/- 0.0457 mas
|
||
}
|
||
|
||
"Gliese 229 A:Luyten 668-21 A:LPM 230 A"
|
||
{
|
||
OrbitBarycenter "Gliese 229"
|
||
SpectralType "M1V"
|
||
AppMag 8.125
|
||
Radius 341000 # approx. for class
|
||
|
||
EllipticalOrbit { # fully specified orbit
|
||
Period 263
|
||
SemiMajorAxis 3.84 # mass ratio 0.54:70.4J
|
||
Eccentricity 0.846
|
||
Inclination 40.3
|
||
AscendingNode 345.3
|
||
ArgOfPericenter 246.9
|
||
MeanAnomaly 300.6
|
||
}
|
||
}
|
||
|
||
"Gliese 229 B:Luyten 668-21 B:LPM 230 B"
|
||
{
|
||
OrbitBarycenter "Gliese 229"
|
||
SpectralType "T6.5V"
|
||
AbsMag 33.5 # for approximate radius in Celestia
|
||
|
||
EllipticalOrbit { # fully specified orbit
|
||
Period 263
|
||
SemiMajorAxis 30.87 # mass ratio 0.54:70.4J
|
||
Eccentricity 0.846
|
||
Inclination 40.3
|
||
AscendingNode 345.3
|
||
ArgOfPericenter 66.9
|
||
MeanAnomaly 300.6
|
||
}
|
||
}
|
||
|
||
26857 # Ross 47
|
||
{
|
||
RA 85.53861374
|
||
Dec 12.48933659
|
||
Distance 18.8850 # 172.7068 +/- 0.0788 mas
|
||
SpectralType "M4V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 11.509
|
||
}
|
||
|
||
# mass and radius of A from Demory et al. (2009), A&A 505 (1), 205
|
||
# "Mass-radius relation of low and very low-mass stars revisited with the VLTI"
|
||
# https://www.aanda.org/articles/aa/full_html/2009/37/aa11976-09/aa11976-09.html
|
||
# masses of B, C from same sources as orbit
|
||
Barycenter "Gliese 570:ADS 9446"
|
||
{
|
||
RA 224.363313679 # mass ratio 0.802:(0.586:0.390)
|
||
Dec -21.41332223
|
||
Distance 19.1844 # 170.0112 +/- 0.0851 mas
|
||
}
|
||
|
||
73184 "KX Lib:Gliese 570 A:ADS 9446 A"
|
||
{
|
||
OrbitBarycenter "Gliese 570"
|
||
SpectralType "K4V"
|
||
AppMag 5.64
|
||
Radius 514100
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 2130
|
||
SemiMajorAxis 104.4 # mass ratio 0.802:(0.586:0.390)
|
||
Eccentricity 0.20
|
||
Inclination 142.6
|
||
AscendingNode 191.6
|
||
ArgOfPericenter 129.2
|
||
MeanAnomaly 52.6
|
||
}
|
||
}
|
||
|
||
Barycenter 73182 "Gliese 570 BC"
|
||
{
|
||
OrbitBarycenter "Gliese 570"
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 2130
|
||
SemiMajorAxis 85.8 # mass ratio 0.802:(0.586:0.390)
|
||
Eccentricity 0.20
|
||
Inclination 142.6
|
||
AscendingNode 191.6
|
||
ArgOfPericenter 309.2
|
||
MeanAnomaly 52.6
|
||
}
|
||
}
|
||
|
||
"Gliese 570 B:ADS 9446 B"
|
||
{
|
||
OrbitBarycenter "Gliese 570 BC"
|
||
SpectralType "M1.5V"
|
||
Radius 324000 # approx. for class
|
||
AppMag 8.33
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 0.846
|
||
SemiMajorAxis 0.35 # mass ratio 0.586:0.390
|
||
Eccentricity 0.76
|
||
Inclination 90.68
|
||
AscendingNode 30.52
|
||
ArgOfPericenter 221.92
|
||
MeanAnomaly 45.19
|
||
}
|
||
}
|
||
|
||
"Gliese 570 C:ADS 9446 C"
|
||
{
|
||
OrbitBarycenter "Gliese 570 BC"
|
||
SpectralType "M3V"
|
||
Radius 270000 # approx. for class
|
||
AppMag 9.94
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 0.846
|
||
SemiMajorAxis 0.53 # mass ratio 0.586:0.390
|
||
Eccentricity 0.76
|
||
Inclination 90.68
|
||
AscendingNode 30.52
|
||
ArgOfPericenter 41.92
|
||
MeanAnomaly 45.19
|
||
}
|
||
}
|
||
|
||
# radius and temperature from Line et al. (2015), ApJ 807 (2), 183
|
||
# "Uniform Atmospheric Retrieval Analysis of Ultracool Dwarfs. I. Characterizing
|
||
# Benchmarks, Gl 570D and HD 3651B"
|
||
# http://iopscience.iop.org/article/10.1088/0004-637X/807/2/183/meta
|
||
"Gliese 570 D:ADS 9446 D"
|
||
{
|
||
RA 224.31233
|
||
Dec -21.36328
|
||
Distance 19.184
|
||
SpectralType "T8V"
|
||
Temperature 710
|
||
Radius 80000
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
86990 # Luyten 205-128
|
||
{
|
||
RA 266.64263979
|
||
Dec -57.31904446
|
||
Distance 19.2013 # 169.8613 +/- 0.1184 mas
|
||
SpectralType "M3.5V"
|
||
Radius 225000 # approx. for class
|
||
AppMag 10.783
|
||
}
|
||
|
||
117473 # Gliese 908
|
||
{
|
||
RA 357.30218808
|
||
Dec 2.40122307
|
||
Distance 19.2583 # 169.3585 +/- 0.0595 mas
|
||
SpectralType "M1V"
|
||
Radius 341000 # approx. for class
|
||
AppMag 8.993
|
||
}
|
||
|
||
# Parameters of A from Karminski et al. (2018), A&A 618, A115
|
||
# "The CARMENES search for exoplanets around M dwarfs. A Neptune-mass
|
||
# planet traversing the habitable zone around HD 180617"
|
||
# https://arxiv.org/abs/1808.01183
|
||
# Parameters of B from Tsuji et al. (2016), PASJ 68 (1), 1331
|
||
# "Near-infrared spectroscopy of M dwarfs. III. Carbon and oxygen abundances
|
||
# in late M dwarfs, including the dusty rapid rotator 2MASSI J1835379+325954"
|
||
# https://arxiv.org/abs/1511.04682
|
||
Barycenter 94761 "Gliese 752:Ross 652:Wolf 1055" # orbit of A & B unknown
|
||
{
|
||
RA 289.231870107 # mass ratio 0.45:0.09
|
||
Dec 5.1658232850
|
||
Distance 19.2810 # 169.1590 +/- 0.0520 mas
|
||
}
|
||
|
||
"V1428 Aql:Gliese 752 A:Ross 652 A:Wolf 1055 A:HD 180617 A"
|
||
{
|
||
RA 289.23023552
|
||
Dec 5.16889968
|
||
Distance 19.2810
|
||
SpectralType "M2.5V"
|
||
Radius 315000
|
||
AppMag 9.115
|
||
RotationPeriod 1105
|
||
}
|
||
|
||
"Van Biesbroeck's Star:V1298 Aql:Gliese 752 B:Ross 652 B:Wolf 1055 B:VB 10:HD 180617 B"
|
||
{
|
||
RA 289.242917
|
||
Dec 5.150278
|
||
Distance 19.2810 # used Gaia DR parallax of A
|
||
SpectralType "M8.0V"
|
||
Radius 86000
|
||
AppMag 17.30
|
||
}
|
||
|
||
"Gliese 754:Luyten 347-14"
|
||
{
|
||
RA 290.19993122
|
||
Dec -45.55823034
|
||
Distance 19.2887 # 169.0921 +/- 0.2165 mas
|
||
SpectralType "M4.5V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 12.23
|
||
}
|
||
|
||
76074 # Gliese 588
|
||
{
|
||
RA 233.05388594
|
||
Dec -41.27559211
|
||
Distance 19.2983 # 169.0074 +/- 0.0580 mas
|
||
SpectralType "M2.5V"
|
||
Radius 290000 # approx. for class
|
||
AppMag 9.311
|
||
}
|
||
|
||
# parameters from Martin et al. (2018)
|
||
"WISE 0350-5658:WISE J035000.32-565830.2"
|
||
{
|
||
RA 57.500996
|
||
Dec -56.975638
|
||
Distance 19.317 # 168.84 +/- 8.53 mas
|
||
SpectralType "Y1V"
|
||
Temperature 300
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
# Used Gaia DR2 parallax for B
|
||
Barycenter 3821 "Achird:ETA Cas:24 Cas:Gliese 34:ADS 671"
|
||
{
|
||
RA 12.274657128 # mass ratio 1.07:0.55
|
||
Dec 57.81608312
|
||
Distance 19.328 # 168.7521 +/- 0.0377 mas
|
||
}
|
||
|
||
# Mass ratio from theoretical values from same source as orbit
|
||
"Achird A:ETA Cas A:24 Cas A:Gliese 34 A:ADS 671 A"
|
||
{
|
||
OrbitBarycenter "ETA Cas"
|
||
SpectralType "G0V"
|
||
AppMag 3.44
|
||
|
||
EllipticalOrbit {
|
||
Period 479.27
|
||
SemiMajorAxis 24.22 # mass ratio 1.07:0.55
|
||
Eccentricity 0.50
|
||
Inclination 152.40
|
||
AscendingNode 8.78
|
||
ArgOfPericenter 182.11
|
||
MeanAnomaly 82.68
|
||
}
|
||
}
|
||
|
||
2026693663 "Achird B:ETA Cas B:24 Cas B:Gliese 34 B:ADS 671 B"
|
||
{
|
||
OrbitBarycenter "ETA Cas"
|
||
SpectralType "K7V"
|
||
AppMag 7.51
|
||
|
||
EllipticalOrbit {
|
||
Period 479.27
|
||
SemiMajorAxis 47.12 # mass ratio 1.07:0.55
|
||
Eccentricity 0.50
|
||
Inclination 152.40
|
||
AscendingNode 8.78
|
||
ArgOfPericenter 2.11
|
||
MeanAnomaly 82.68
|
||
}
|
||
}
|
||
|
||
Barycenter "Guniibuu:36 Oph:Gliese 663:ADS 10417" # orbit of (AB) & C unknown
|
||
{
|
||
RA 258.907618286 # mass ratio (0.75:0.76):0.72
|
||
Dec -26.58414637
|
||
Distance 19.4373
|
||
}
|
||
|
||
# Distance from average of distances from Gaia DR2 parallax for A and B
|
||
Barycenter 84405 "Guniibuu AB:36 Oph AB:Gliese 663 AB"
|
||
{
|
||
RA 258.837020242 # mass ratio 0.75:0.76
|
||
Dec -26.60226476 # A: 167.8221 +/- 0.1556 mas
|
||
Distance 19.4373 # B: 167.7764 +/- 0.2210 mas
|
||
}
|
||
|
||
# Average masses from Luck, R. E. (2017), AJ 153 (1), 21
|
||
# "Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants"
|
||
# http://iopscience.iop.org/article/10.3847/1538-3881/153/1/21/meta
|
||
1003266820 "Guniibuu A:36 Oph A:Gliese 663 A:ADS 10417 A"
|
||
{
|
||
OrbitBarycenter "36 Oph AB"
|
||
SpectralType "K2V"
|
||
AppMag 5.08
|
||
|
||
EllipticalOrbit {
|
||
Period 470.9
|
||
SemiMajorAxis 38.99 # mass ratio 0.75:0.76
|
||
Eccentricity 0.92
|
||
Inclination 13.35
|
||
AscendingNode 348.86
|
||
ArgOfPericenter 270.97
|
||
MeanAnomaly 246.27
|
||
}
|
||
}
|
||
|
||
2003266820 "Guniibuu B:36 Oph B:Gliese 663 B:ADS 10417 B"
|
||
{
|
||
OrbitBarycenter "36 Oph AB"
|
||
SpectralType "K1V"
|
||
AppMag 5.08
|
||
|
||
EllipticalOrbit {
|
||
Period 470.9
|
||
SemiMajorAxis 38.48 # mass ratio 0.75:0.76
|
||
Eccentricity 0.92
|
||
Inclination 13.35
|
||
AscendingNode 348.86
|
||
ArgOfPericenter 90.97
|
||
MeanAnomaly 246.27
|
||
}
|
||
}
|
||
|
||
84478 "Guniibuu C:36 Oph C:V2215 Oph:Gliese 664:Gliese 663 C:ADS 10417 C"
|
||
{
|
||
RA 259.05567807
|
||
Dec -26.5461481
|
||
Distance 19.4373 # used same distance as A and B
|
||
SpectralType "K5V"
|
||
AppMag 6.34
|
||
}
|
||
|
||
# parameters from Martin et al. (2018)
|
||
# BT-Settl model parameters from Beichman et al. (2014), ApJ 783 (2), 68
|
||
# "WISE Y Dwarfs as Probes of the Brown Dwarf-Exoplanet Connection"
|
||
# https://iopscience.iop.org/article/10.1088/0004-637X/783/2/68/meta
|
||
"WISE 1541-2250:WISE J1541-2250:WISEPA J154151.66-225025.2"
|
||
{
|
||
RA 235.464061
|
||
Dec -22.840554
|
||
Distance 19.524 # 167.05 +/- 4.19 mas
|
||
SpectralType "Y1"
|
||
Temperature 350
|
||
Radius 69900
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
37766 # Ross 882
|
||
{
|
||
RA 116.16738595
|
||
Dec 3.55246606
|
||
Distance 19.5281 # 167.0186 +/- 0.0592 mas
|
||
SpectralType "M4.0V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 11.225
|
||
}
|
||
|
||
# masses and parallaxes from Benedict et al. (2016), AJ 152 (5), 141
|
||
# "The Solar Neighborhood. XXXVII: The Mass-Luminosity Relation for Main-sequence
|
||
# M Dwarfs"
|
||
# http://iopscience.iop.org/article/10.3847/0004-6256/152/5/141/meta
|
||
Barycenter 1242 "GJ 1005:Luyten 722-22"
|
||
{
|
||
RA 3.86712874
|
||
Dec -16.133786
|
||
Distance 19.577 # 166.6 +/- 0.3 mas
|
||
}
|
||
|
||
"GJ 1005 A:Luyten 722-22 A"
|
||
{
|
||
OrbitBarycenter "GJ 1005"
|
||
SpectralType "M3.5V"
|
||
AppMag 11.60
|
||
|
||
EllipticalOrbit {
|
||
Period 4.565
|
||
SemiMajorAxis 0.70 # mass ratio 0.179:0.112
|
||
Eccentricity 0.36
|
||
Inclination 72.44
|
||
AscendingNode 85.33
|
||
ArgOfPericenter 182.79
|
||
MeanAnomaly 5.81
|
||
}
|
||
}
|
||
|
||
"GJ 1005 B:Luyten 722-22 B"
|
||
{
|
||
OrbitBarycenter "GJ 1005"
|
||
SpectralType "M7V"
|
||
AppMag 14.02
|
||
|
||
EllipticalOrbit {
|
||
Period 4.565
|
||
SemiMajorAxis 1.12 # mass ratio 0.179:0.112
|
||
Eccentricity 0.36
|
||
Inclination 72.44
|
||
AscendingNode 85.33
|
||
ArgOfPericenter 2.79
|
||
MeanAnomaly 5.81
|
||
}
|
||
}
|
||
|
||
Barycenter 99461 "Gliese 783:CD-36 13940:J Herschel 5173:HJ 5173" # orbit of A & B unknown
|
||
{
|
||
RA 302.7999508 # mass ratio 0.82:0.20
|
||
Dec -36.1014624
|
||
Distance 19.618
|
||
}
|
||
|
||
"Gliese 783 A:CD-36 13940 A:J Herschel 5173 A:HJ 5173 A"
|
||
{
|
||
RA 302.79974369
|
||
Dec -36.10120932
|
||
Distance 19.6211 # 166.2274 +/- 0.1256 mas
|
||
SpectralType "K2.5V"
|
||
AppMag 5.32
|
||
}
|
||
|
||
"Gliese 783 B:CD-36 13940 B:J Herschel 5173 B:HJ 5173 B"
|
||
{
|
||
RA 302.8008
|
||
Dec -36.10250
|
||
Distance 19.6211
|
||
SpectralType "M3.5V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 11.50
|
||
}
|
||
|
||
15510 # 82 Eri
|
||
{
|
||
RA 49.98187890
|
||
Dec -43.06978264
|
||
Distance 19.711 # 165.47 +/- 0.19 mas
|
||
SpectralType "G6V"
|
||
AppMag 4.27
|
||
}
|
||
|
||
# Barry et al. (2012), ApJ 760 (1), 55
|
||
# "A Precise Physical Orbit for the M-dwarf Binary Gliese 268"
|
||
# http://iopscience.iop.org/article/10.1088/0004-637X/760/1/55/meta
|
||
Barycenter 34603 "Gliese 268:Ross 986"
|
||
{
|
||
RA 107.50764113
|
||
Dec 38.52946844
|
||
Distance 19.8103 # 164.6395 +/- 0.1338 mas
|
||
}
|
||
|
||
"QY Aur:Gliese 268 A:Ross 986 A"
|
||
{
|
||
OrbitBarycenter "Gliese 268"
|
||
SpectralType "M4.5V"
|
||
AppMag 12.05
|
||
|
||
EllipticalOrbit { # fully specified orbit
|
||
Period 0.028547
|
||
SemiMajorAxis 0.03110 # mass ratio 0.22599:0.19248
|
||
Eccentricity 0.3203
|
||
Inclination 8.92
|
||
AscendingNode 66.51
|
||
ArgOfPericenter 161.27
|
||
MeanAnomaly 272.77
|
||
}
|
||
}
|
||
|
||
"Gliese 268 B:Ross 986 B"
|
||
{
|
||
OrbitBarycenter "Gliese 268"
|
||
SpectralType "M6V"
|
||
AppMag 12.45
|
||
|
||
EllipticalOrbit { # fully specified orbit
|
||
Period 0.028547
|
||
SemiMajorAxis 0.03641 # mass ratio 0.22599:0.19248
|
||
Eccentricity 0.3203
|
||
Inclination 8.92
|
||
AscendingNode 66.51
|
||
ArgOfPericenter 341.27
|
||
MeanAnomaly 272.77
|
||
}
|
||
}
|
||
|
||
99240 # Del Pav
|
||
{
|
||
RA 302.18170612
|
||
Dec -66.18206758
|
||
Distance 19.923 # 163.71 +/- 0.17 mas
|
||
SpectralType "G8IV"
|
||
AppMag 3.56
|
||
}
|
||
|
||
"2MASS 0136+0933:2MASS J01365662+0933473:SIMP J013656.5+093347"
|
||
{
|
||
RA 24.23566572
|
||
Dec 9.56314736
|
||
Distance 19.9261 # 163.6824 +/- 0.7223 mas
|
||
SpectralType "T2.5V"
|
||
AbsMag 27.5 # for approximate radius in Celestia
|
||
}
|
||
|
||
# parallax from Faherty et al. (2012), ApJ 752, (1), 56
|
||
# "The Brown Dwarf Kinematics Project (BDKP). III. Parallaxes for 70 Ultracool Dwarfs"
|
||
# http://iopscience.iop.org/article/10.1088/0004-637X/752/1/56/meta
|
||
"2MASS 0937+2931:2MASS J09373487+2931409"
|
||
{
|
||
RA 144.395333
|
||
Dec 29.528056
|
||
Distance 19.961 # 163.39 +/- 1.76 mas
|
||
SpectralType "T6.0V"
|
||
AbsMag 33.5 # for approximate radius in Celestia
|
||
}
|
||
|
||
99701 # Gliese 784
|
||
{
|
||
RA 303.47248496
|
||
Dec -45.16402041
|
||
Distance 20.0932 # 162.3212 +/- 0.0495 mas
|
||
SpectralType "M0V"
|
||
Radius 432000 # approx. for class
|
||
AppMag 7.966
|
||
}
|
||
|
||
"GJ 1221:LP 44-113"
|
||
{
|
||
RA 267.03330405
|
||
Dec 70.87664478
|
||
Distance 20.2604 # 160.9819 +/- 0.0143 mas
|
||
SpectralType "DQ9P"
|
||
AppMag 14.15
|
||
}
|
||
|
||
71253 # Gliese 555
|
||
{
|
||
RA 218.57004817
|
||
Dec -12.51956038
|
||
Distance 20.3702 # 160.1141 +/- 0.1135 mas
|
||
SpectralType "M3.5V"
|
||
Radius 225000 # approx. for class
|
||
AppMag 11.317
|
||
}
|
||
|
||
# Distance from average of distances from Gaia DR2 parallax for A and B
|
||
Barycenter 116132 "Gliese 896:BD+19 5116"
|
||
{
|
||
RA 352.96797137 # mass ratio (0.34:0.13):(0.16:0.09)
|
||
Dec 19.93724591 # A: 159.7098 +/- 0.0827 mas
|
||
Distance 20.400 # B: 160.0598 +/- 0.1079 mas
|
||
}
|
||
|
||
Barycenter "Gliese 896 A:BD+19 5116 A"
|
||
{
|
||
OrbitBarycenter "Gliese 896"
|
||
|
||
EllipticalOrbit {
|
||
Period 359
|
||
SemiMajorAxis 14.92 # mass ratio (0.34:0.13):(0.16:0.09)
|
||
Eccentricity 0.2
|
||
Inclination 19.6
|
||
AscendingNode 138.8
|
||
ArgOfPericenter 119.1
|
||
MeanAnomaly 352.0
|
||
}
|
||
}
|
||
|
||
Barycenter "Gliese 896 B:BD+19 5116 B"
|
||
{
|
||
OrbitBarycenter "Gliese 896"
|
||
|
||
EllipticalOrbit {
|
||
Period 359
|
||
SemiMajorAxis 28.0 # mass ratio (0.34:0.13):(0.16:0.09)
|
||
Eccentricity 0.2
|
||
Inclination 19.6
|
||
AscendingNode 138.8
|
||
ArgOfPericenter 299.1
|
||
MeanAnomaly 352.0
|
||
}
|
||
}
|
||
|
||
"EQ Peg:Gliese 896 Aa:BD+19 5116 Aa"
|
||
{
|
||
OrbitBarycenter "Gliese 896 A"
|
||
SpectralType "M3.5V"
|
||
Radius 225000 # approx. for class
|
||
AppMag 10.27
|
||
|
||
EllipticalOrbit {
|
||
Period 3.5 # "of the order of a few years"
|
||
SemiMajorAxis 0.5 # mass ratio 0.34:0.13
|
||
Inclination 20 # to match orbital plane of system
|
||
AscendingNode 140
|
||
ArgOfPericenter 180
|
||
}
|
||
|
||
}
|
||
|
||
"Gliese 896 Ab:BD+19 5116 Ab"
|
||
{
|
||
OrbitBarycenter "Gliese 896 A"
|
||
SpectralType "M7V" # from apparent magnitude
|
||
Radius 84000 # approx. for estimated class
|
||
AppMag 13.26
|
||
|
||
EllipticalOrbit {
|
||
Period 3.5 # "of the order of a few years"
|
||
SemiMajorAxis 1.2 # mass ratio 0.34:0.13
|
||
Inclination 20 # to match orbital plane of system
|
||
AscendingNode 140
|
||
}
|
||
}
|
||
|
||
"Gliese 896 Ba:BD+19 5116 Ba"
|
||
{
|
||
OrbitBarycenter "Gliese 896 B"
|
||
SpectralType "M4.5V"
|
||
Radius 160000 # approx. for class
|
||
AppMag 12.21
|
||
|
||
EllipticalOrbit {
|
||
Period 4.1 # "of the order of a few years"
|
||
SemiMajorAxis 0.6 # mass ratio 0.16:0.09
|
||
Inclination 20 # to match orbital plane of system
|
||
AscendingNode 140
|
||
ArgOfPericenter 180
|
||
}
|
||
}
|
||
|
||
"Gliese 896 Bb:BD+19 5116 Bb"
|
||
{
|
||
OrbitBarycenter "Gliese 896 B"
|
||
SpectralType "M9V" # from apparent magnitude
|
||
Radius 56000 # approx. for class
|
||
AppMag 15.40
|
||
|
||
EllipticalOrbit {
|
||
Period 4.1 # "of the order of a few years"
|
||
SemiMajorAxis 1.0 # mass ratio 0.16:0.09
|
||
Inclination 20 # to match orbital plane of system
|
||
AscendingNode 140
|
||
}
|
||
}
|
||
|
||
74995 # Gliese 581
|
||
{
|
||
RA 229.86177972
|
||
Dec -7.72227527
|
||
Distance 20.5454 # 158.7492 +/- 0.0523 mas
|
||
SpectralType "M3V"
|
||
Radius 270000 # approx. for class
|
||
AppMag 10.560
|
||
}
|
||
|
||
# Parameters from Gonzalez-Alvarez et al. (2020), A&A 637, A93
|
||
# "The CARMENES search for exoplanets around M dwarfs. A super-Earth planet orbiting
|
||
# HD 79211 (GJ 338 B)"
|
||
# https://arxiv.org/abs/2003.13052
|
||
# Distance from average of distances from Gaia DR2 parallax for A and B
|
||
Barycenter "Gliese 338:Struve 1321:ADS 7251"
|
||
{
|
||
RA 138.59872250 # mass ratio 0.69:0.64
|
||
Dec 52.46994924 # A: 157.8796 +/- 0.0366 mas
|
||
Distance 20.658 # B: 157.8851 +/- 0.0414 mas
|
||
}
|
||
|
||
45343 "Gliese 338 A:Struve 1321 A:ADS 7251 A"
|
||
{
|
||
OrbitBarycenter "Gliese 338"
|
||
SpectralType "M0.0V"
|
||
Radius 403500
|
||
AppMag 7.63
|
||
|
||
EllipticalOrbit {
|
||
Period 1295
|
||
SemiMajorAxis 63.0 # mass ratio 0.69:0.64
|
||
Eccentricity 0.01
|
||
Inclination 123.3
|
||
AscendingNode 348.8
|
||
ArgOfPericenter 184.3
|
||
MeanAnomaly 135.4
|
||
}
|
||
|
||
RotationPeriod 391.2 # 16.3 d
|
||
}
|
||
|
||
120005 "Gliese 338 B:Struve 1321 B:ADS 7251 B"
|
||
{
|
||
OrbitBarycenter "Gliese 338"
|
||
SpectralType "M0.0V"
|
||
Radius 403500
|
||
AppMag 7.70
|
||
|
||
EllipticalOrbit {
|
||
Period 1295
|
||
SemiMajorAxis 67.9 # mass ratio 0.69:0.64
|
||
Eccentricity 0.01
|
||
Inclination 123.3
|
||
AscendingNode 348.8
|
||
ArgOfPericenter 4.3
|
||
MeanAnomaly 135.4
|
||
}
|
||
|
||
RotationPeriod 398.64 # 16.61 d
|
||
}
|
||
|
||
"LHS 2090:LP 368-128"
|
||
{
|
||
RA 135.09811222
|
||
Dec 21.83469395
|
||
Distance 20.8063 # 156.7584 +/- 0.1329 mas
|
||
SpectralType "M6.5V"
|
||
Radius 105000 # approx. for class
|
||
AppMag 16.100
|
||
}
|
||
|
||
Barycenter 84140 "Gliese 661:BD+45 2505"
|
||
{
|
||
RA 258.03296559
|
||
Dec 45.66589325
|
||
Distance 20.865
|
||
}
|
||
|
||
"Gliese 661 A:BD+45 2505 A"
|
||
{
|
||
OrbitBarycenter "Gliese 661"
|
||
SpectralType "M3V"
|
||
Radius 270000 # approx. for class
|
||
AppMag 10.02
|
||
|
||
EllipticalOrbit {
|
||
Period 12.96
|
||
SemiMajorAxis 2.43 # mass ratio 0.36:0.35
|
||
Eccentricity 0.75
|
||
Inclination 27.34
|
||
AscendingNode 65.56
|
||
ArgOfPericenter 138.70
|
||
MeanAnomaly 248.89
|
||
}
|
||
}
|
||
|
||
"Gliese 661 B:BD+45 2505 B"
|
||
{
|
||
OrbitBarycenter "Gliese 661"
|
||
SpectralType "M4V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 10.25
|
||
|
||
EllipticalOrbit {
|
||
Period 12.96
|
||
SemiMajorAxis 2.50 # mass ratio 0.36:0.35
|
||
Eccentricity 0.75
|
||
Inclination 27.34
|
||
AscendingNode 65.56
|
||
ArgOfPericenter 318.70
|
||
MeanAnomaly 248.89
|
||
}
|
||
}
|
||
|
||
"LP 944-20"
|
||
{
|
||
RA 54.89688549
|
||
Dec -35.42878568
|
||
Distance 20.9398 # 155.7590 +/- 0.0991 mas
|
||
SpectralType "M9.5Ve"
|
||
Radius 56000 # approx. for class
|
||
AppMag 18.69
|
||
}
|
||
|
||
"Gliese 223.2:LP 658-2:HL 4"
|
||
{
|
||
RA 88.78971006
|
||
Dec -4.16862949
|
||
Distance 21.0084 # 155.2501 +/- 0.0287 mas
|
||
SpectralType "DZ9" # DZ11
|
||
AppMag 14.45
|
||
}
|
||
|
||
"2MASS 1503+2525:2MASS J15031961+2525196"
|
||
{
|
||
RA 225.83171067
|
||
Dec 25.42215925
|
||
Distance 21.0531 # 154.9208 +/- 1.1025 mas
|
||
SpectralType "T5.5V"
|
||
AbsMag 32 # for approximate radius in Celestia
|
||
}
|
||
|
||
Barycenter "Gliese 644:Wolf 630" # orbit of (AB) & C unknown
|
||
{
|
||
RA 253.8717855 # mass ratio (0.4155:(0.3466:0.3143)):0.0841
|
||
Dec -8.3405565
|
||
Distance 21.080
|
||
}
|
||
|
||
# Parallax and masses from Segransan et al. (2000), A&A 364, 665
|
||
# "Accurate masses of very low mass stars. III. 16 new or improved masses"
|
||
# http://adsabs.harvard.edu/abs/2000A%26A...364..665S
|
||
Barycenter 82817 "Gliese 644 AB:Wolf 630 AB"
|
||
{
|
||
RA 253.86982326
|
||
Dec -8.3363299
|
||
Distance 21.070 # 154.8 +/- 0.6 mas
|
||
}
|
||
|
||
"V1054 Oph:Gliese 644 A:Wolf 630 A"
|
||
{
|
||
OrbitBarycenter "Gliese 644 AB"
|
||
SpectralType "M2.5V"
|
||
AppMag 9.73
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 1.718
|
||
SemiMajorAxis 0.90 # mass ratio 0.4155:(0.3466:0.3143)
|
||
Eccentricity 0.04
|
||
Inclination 82.15
|
||
AscendingNode 324.51
|
||
ArgOfPericenter 236.42
|
||
MeanAnomaly 63.52
|
||
}
|
||
}
|
||
|
||
Barycenter "Gliese 644 B:Wolf 630 B"
|
||
{
|
||
OrbitBarycenter "Gliese 644 AB"
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 1.718
|
||
SemiMajorAxis 0.57 # mass ratio 0.4155:(0.3466:0.3143)
|
||
Eccentricity 0.04
|
||
Inclination 82.15
|
||
AscendingNode 324.51
|
||
ArgOfPericenter 56.42
|
||
MeanAnomaly 63.52
|
||
}
|
||
}
|
||
|
||
"Gliese 644 Ba:Wolf 630 Ba"
|
||
{
|
||
OrbitBarycenter "Gliese 644 B"
|
||
SpectralType "M3V"
|
||
AppMag 10.54
|
||
|
||
EllipticalOrbit {
|
||
Period 0.008125 # 2.965509 d
|
||
SemiMajorAxis 0.0167 # mass ratio 0.3466:0.3143
|
||
Eccentricity 0.02 # axis calculated from mass and period
|
||
Inclination 80.81
|
||
AscendingNode 328.19 # assumed to be identical to A-B
|
||
ArgOfPericenter 79.87
|
||
MeanAnomaly 164.82
|
||
}
|
||
}
|
||
|
||
"Gliese 644 Bb:Wolf 630 Bb"
|
||
{
|
||
OrbitBarycenter "Gliese 644 B"
|
||
SpectralType "M4V"
|
||
AppMag 10.63
|
||
|
||
EllipticalOrbit {
|
||
Period 0.008125 # 2.965509 d
|
||
SemiMajorAxis 0.0185 # mass ratio 0.3466:0.3143
|
||
Eccentricity 0.02 # axis calculated from mass and period
|
||
Inclination 80.81
|
||
AscendingNode 328.19 # assumed to be identical to A-B
|
||
ArgOfPericenter 259.87
|
||
MeanAnomaly 164.82
|
||
}
|
||
}
|
||
|
||
# Physical parameters from Mann et al. (2015), ApJ 804 (1), 64
|
||
# "How to Constrain Your M Dwarf: Measuring Effective Temperature,
|
||
# Bolometric Luminosity, Mass, and Radius"
|
||
# http://iopscience.iop.org/article/10.1088/0004-637X/804/1/64/meta
|
||
"Gliese 644 C:Wolf 630 C:VB 8"
|
||
{
|
||
RA 253.89690059
|
||
Dec -8.39465358
|
||
Distance 21.2046 # 153.8139 +/- 0.1148 mas
|
||
SpectralType "M7V"
|
||
AppMag 16.916
|
||
Radius 78680
|
||
}
|
||
|
||
"GL Vir:GJ 1156:Luyten 1190-34"
|
||
{
|
||
RA 184.74749966
|
||
Dec 11.12604729
|
||
Distance 21.1094 # 154.5077 +/- 0.1108 mas
|
||
SpectralType "M4.5V"
|
||
Radius 160000 # approx. for class
|
||
AppMag 13.898
|
||
}
|
||
|
||
80459 # Gliese 625
|
||
{
|
||
RA 246.35259712
|
||
Dec 54.30410160
|
||
Distance 21.1144 # 154.4710 +/- 0.0273 mas
|
||
SpectralType "M1.5V"
|
||
Radius 324000 # approx. for class
|
||
AppMag 10.17
|
||
}
|
||
|
||
# parameters from Martin et al. (2018)
|
||
# BT-Settl model parameters from Beichman et al. (2014), ApJ 783 (2), 68
|
||
# "WISE Y Dwarfs as Probes of the Brown Dwarf-Exoplanet Connection"
|
||
# https://iopscience.iop.org/article/10.1088/0004-637X/783/2/68/meta
|
||
"WISE 2209+2711:WISE J220905.73+271143.9"
|
||
{
|
||
RA 332.273892
|
||
Dec 27.195556
|
||
Distance 21.123 # 154.41 +/- 5.67 mas
|
||
SpectralType "Y0V"
|
||
Temperature 350
|
||
Radius 69900
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
82809 "Gliese 643:Wolf 629"
|
||
{
|
||
RA 253.85508989
|
||
Dec -8.32258365
|
||
Distance 21.1901 # 153.9189 +/- 0.1310 mas
|
||
SpectralType "M3.5V"
|
||
Radius 225000 # approx. for class
|
||
AppMag 11.759
|
||
}
|
||
|
||
"GJ 1128:LHS 271:Luyten 100-115"
|
||
{
|
||
RA 145.69309184
|
||
Dec -68.88500107
|
||
Distance 21.2090 # 153.7816 +/- 0.0554 mas
|
||
SpectralType "M4.0V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 12.78
|
||
}
|
||
|
||
# parameters from Martin et al. (2018)
|
||
"WISE 0410+1502:WISE J041022.71+150248.4"
|
||
{
|
||
RA 62.595853
|
||
Dec 15.044417
|
||
Distance 21.259 # 153.42 +/- 4.05 mas
|
||
SpectralType "Y0V"
|
||
Temperature 300 # approx.
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
114622 # Gliese 892
|
||
{
|
||
RA 348.32072826
|
||
Dec 57.16835459
|
||
Distance 21.3061 # 153.0808 +/- 0.0895 mas
|
||
SpectralType "K3V"
|
||
AppMag 5.570
|
||
}
|
||
|
||
# BT-Settl model parameters from Beichman et al. (2014), ApJ 783 (2), 68
|
||
# "WISE Y Dwarfs as Probes of the Brown Dwarf-Exoplanet Connection"
|
||
# https://iopscience.iop.org/article/10.1088/0004-637X/783/2/68/meta
|
||
"WISE 0313+7807:WISE J031325.94+780744.3"
|
||
{
|
||
RA 048.358100
|
||
Dec 78.128986
|
||
Distance 21.3 # 153 +/- 15 mas
|
||
SpectralType "T8.5V"
|
||
Temperature 651
|
||
Radius 61500
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
"LHS 337:Luyten 471-42:GJ 3737"
|
||
{
|
||
RA 189.70457636
|
||
Dec -38.38157547
|
||
Distance 21.7666 # 149.8423 +/- 0.0755 mas
|
||
SpectralType "M4.0V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 12.74
|
||
}
|
||
|
||
# Söderhjelm, S. (1999), A&A 341, 121
|
||
# "Visual binary orbits and masses post Hipparcos"
|
||
# http://adsabs.harvard.edu/abs/1999A%26A...341..121S
|
||
Barycenter 72659 "XI Boo:37 Boo:Gliese 566:ADS 9413"
|
||
{
|
||
RA 222.847018
|
||
Dec 19.100634
|
||
Distance 21.893 # 148.98 +/- 0.48 mas
|
||
}
|
||
|
||
1007221481 "XI Boo A:37 Boo A:Gliese 566 A:ADS 9413 A"
|
||
{
|
||
OrbitBarycenter "XI Boo"
|
||
SpectralType "G7Ve"
|
||
AppMag 4.675
|
||
|
||
EllipticalOrbit {
|
||
Period 151.6
|
||
SemiMajorAxis 13.80 # mass ratio 0.94:0.67
|
||
Eccentricity 0.51
|
||
Inclination 83.21
|
||
AscendingNode 270.13
|
||
ArgOfPericenter 158.75
|
||
MeanAnomaly 215.38
|
||
}
|
||
}
|
||
|
||
2007221481 "XI Boo B:37 Boo B:Gliese 566 B:ADS 9413 B"
|
||
{
|
||
OrbitBarycenter "XI Boo"
|
||
SpectralType "K5Ve"
|
||
AppMag 6.816
|
||
|
||
EllipticalOrbit {
|
||
Period 151.6
|
||
SemiMajorAxis 19.36 # mass ratio 0.94:0.67
|
||
Eccentricity 0.51
|
||
Inclination 83.21
|
||
AscendingNode 270.13
|
||
ArgOfPericenter 338.75
|
||
MeanAnomaly 215.38
|
||
}
|
||
}
|
||
|
||
53767 # Ross 104
|
||
{
|
||
RA 165.01773737
|
||
Dec 22.83295740
|
||
Distance 22.0185 # 148.1283 +/- 0.0569 mas
|
||
SpectralType "M4V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 10.020
|
||
}
|
||
|
||
# Tokovinin et al. (2015), AJ 150 (2), 50
|
||
# "Speckle Interferometry at SOAR in 2014"
|
||
# http://iopscience.iop.org/article/10.1088/0004-6256/150/2/50/meta
|
||
# Delfosse et al. (1999), A&A 344, 897
|
||
# "New neighbours. I. 13 new companions to nearby M dwarfs"
|
||
# http://adsabs.harvard.edu/abs/1999A&A...344..897D
|
||
Barycenter "GJ 3522:Giclas 41-14"
|
||
{
|
||
RA 134.734670
|
||
Dec 8.4739078
|
||
Distance 22.088 # 147.66 +/- 1.98 mas
|
||
}
|
||
|
||
Barycenter "GJ 3522 A:Giclas 41-14 A"
|
||
{
|
||
OrbitBarycenter "Giclas 41-14"
|
||
SpectralType "M3.5V"
|
||
|
||
EllipticalOrbit {
|
||
Period 5.566
|
||
SemiMajorAxis 0.86 # mass ratio (0.19:0.17):0.17
|
||
Eccentricity 0.78
|
||
Inclination 155.71
|
||
AscendingNode 234.28
|
||
ArgOfPericenter 34.91
|
||
MeanAnomaly 303.15
|
||
}
|
||
}
|
||
|
||
"GJ 3522 Aa:Giclas 41-14 Aa"
|
||
{
|
||
OrbitBarycenter "Giclas 41-14 A"
|
||
SpectralType "M3.5V"
|
||
Radius 225000 # approx. for class
|
||
AppMag 11.94
|
||
|
||
EllipticalOrbit {
|
||
Period 0.021 # 7.6 d
|
||
SemiMajorAxis 0.0255 # estimated from mass ratio 0.19:0.17
|
||
Inclination 156 # guess - to match
|
||
AscendingNode 234 # plane of AB
|
||
}
|
||
}
|
||
|
||
"GJ 3522 Ab:Giclas 41-14 Ab"
|
||
{
|
||
OrbitBarycenter "Giclas 41-14 A"
|
||
SpectralType "M6V" # from estimated mass
|
||
Radius 105000 # approx. for estimated class
|
||
AppMag 12.14
|
||
|
||
EllipticalOrbit {
|
||
Period 0.021 # 7.6 d
|
||
SemiMajorAxis 0.0285 # estimated from mass ratio 0.19:0.17
|
||
Inclination 156 # guess - to match
|
||
AscendingNode 234 # plane of AB
|
||
ArgOfPericenter 180
|
||
}
|
||
}
|
||
|
||
"GJ 3522 B:Giclas 41-14 B"
|
||
{
|
||
OrbitBarycenter "Giclas 41-14"
|
||
SpectralType "M6V"
|
||
Radius 105000 # approx. for estimated class
|
||
AppMag 12.28
|
||
|
||
EllipticalOrbit {
|
||
Period 5.566
|
||
SemiMajorAxis 1.83 # mass ratio (0.19:0.17):0.17
|
||
Eccentricity 0.78
|
||
Inclination 155.71
|
||
AscendingNode 234.28
|
||
ArgOfPericenter 214.91
|
||
MeanAnomaly 303.15
|
||
}
|
||
}
|
||
|
||
# Delfosse et al. (1999), A&A 344, 897
|
||
# "New neighbours. I. 13 new companions to nearby M dwarfs"
|
||
# http://adsabs.harvard.edu/abs/1999A&A...344..897D
|
||
Barycenter 106106 "Gliese 829:Ross 775"
|
||
{
|
||
RA 322.40338336
|
||
Dec 17.64329431
|
||
Distance 22.0954 # 147.6126 +/- 0.0979 mas
|
||
}
|
||
|
||
"Gliese 829 A:Ross 775 A"
|
||
{
|
||
OrbitBarycenter "Ross 775"
|
||
SpectralType "M3.0V"
|
||
Radius 270000 # approx. for class
|
||
AppMag 11.05
|
||
|
||
EllipticalOrbit {
|
||
Period 0.146 # 53.2 d
|
||
SemiMajorAxis 0.11 # estimated from mass ratio 0.26:0.26
|
||
ArgOfPericenter 180
|
||
}
|
||
}
|
||
|
||
"Gliese 829 B:Ross 775 B"
|
||
{
|
||
OrbitBarycenter "Ross 775"
|
||
SpectralType "M3.5V"
|
||
Radius 225000 # approx. for class
|
||
AppMag 11.05
|
||
|
||
EllipticalOrbit {
|
||
Period 0.146 # 53.2 d
|
||
SemiMajorAxis 0.11 # estimated from mass ratio 0.26:0.26
|
||
}
|
||
}
|
||
|
||
# Dupuy et al. (2019), AJ 158 (5), 174
|
||
# "WISE J072003.20-084651.2B is a Massive T Dwarf"
|
||
# https://arxiv.org/abs/1908.06994
|
||
Barycenter "Scholz's Star:WISE 0720-0846:WISE J072003.20-084651.2"
|
||
{
|
||
RA 110.01355700
|
||
Dec -8.78052900
|
||
Distance 22.294 # 146.3 +1.2 -1.1 mas
|
||
}
|
||
|
||
# Apparent magnitude of A from Ivanov et al. (2015), A&A 574, A64
|
||
# "Properties of the solar neighbor WISE J072003.20-084651.2"
|
||
# https://www.aanda.org/articles/aa/abs/2015/02/aa24883-14/aa24883-14.html
|
||
"Scholz's Star A:WISE J0720-0846 A:WISE J072003.20-084651.2 A"
|
||
{
|
||
OrbitBarycenter "WISE 0720-0846"
|
||
SpectralType "M9.5V"
|
||
AppMag 18.266
|
||
|
||
EllipticalOrbit { # fully specified orbit
|
||
Period 8.06
|
||
SemiMajorAxis 0.87 # mass ratio 99J:66J
|
||
Eccentricity 0.24
|
||
Inclination 59.8
|
||
AscendingNode 158.8
|
||
ArgOfPericenter 39.7
|
||
MeanAnomaly 18.4
|
||
}
|
||
}
|
||
|
||
"Scholz's Star B:WISE J0720-0846 B:WISE J072003.20-084651.2 B"
|
||
{
|
||
OrbitBarycenter "WISE 0720-0846"
|
||
SpectralType "T5.5V"
|
||
AbsMag 32 # for approximate radius in Celestia
|
||
|
||
EllipticalOrbit { # fully specified orbit
|
||
Period 8.06
|
||
SemiMajorAxis 1.31 # mass ratio 99J:66J
|
||
Eccentricity 0.24
|
||
Inclination 59.8
|
||
AscendingNode 158.8
|
||
ArgOfPericenter 219.7
|
||
MeanAnomaly 18.4
|
||
}
|
||
}
|
||
|
||
113296 # Ross 671
|
||
{
|
||
RA 344.14501970
|
||
Dec 16.55343159
|
||
Distance 22.3992 # 145.6107 +/- 0.0388 mas
|
||
SpectralType "M1.5Ve"
|
||
Radius 324000 # approx. for class
|
||
AppMag 8.638
|
||
}
|
||
|
||
# Used parallax of component B, from Gaia DR2
|
||
# Winters et al. (2019), AJ 158 (4), 152
|
||
# "Three Red Suns in the Sky: A Transiting, Terrestrial Planet in a Triple
|
||
# M Dwarf System at 6.9 Parsecs"
|
||
# https://arxiv.org/abs/1906.10147
|
||
Barycenter 14101 "LTT 1445"
|
||
{
|
||
RA 45.46325875 # mass ratio 0.257:(0.215:0.161)
|
||
Dec -16.59253611
|
||
Distance 22.4090
|
||
}
|
||
|
||
1006945865 "LTT 1445 A:GJ 3193:LP 771-96:Luyten 730-18:RECONS 4"
|
||
{
|
||
RA 45.46412500
|
||
Dec -16.5933611
|
||
Distance 22.4090
|
||
AppMag 11.22
|
||
SpectralType "M3V"
|
||
Radius 186400
|
||
}
|
||
|
||
Barycenter "LTT 1445 BC:GJ 3192:LP 771-95"
|
||
{
|
||
RA 45.462666667
|
||
Dec -16.59197222
|
||
Distance 22.4090
|
||
}
|
||
|
||
"LTT 1445 B:GJ 3192 A:LP 771-95 A"
|
||
{
|
||
OrbitBarycenter "LTT 1445 BC"
|
||
SpectralType "M4V" # estimate from mass and radius
|
||
AppMag 11.78
|
||
Radius 164200
|
||
|
||
EllipticalOrbit {
|
||
Period 36.2
|
||
SemiMajorAxis 3.4096 # mass ratio 0.215:0.161
|
||
Eccentricity 0.50
|
||
Inclination 70.41
|
||
AscendingNode 204.85
|
||
ArgOfPericenter 333.35
|
||
MeanAnomaly 169.06
|
||
}
|
||
}
|
||
|
||
"LTT 1445 C:GJ 3192 B:LP 771-95 B"
|
||
{
|
||
OrbitBarycenter "LTT 1445 BC"
|
||
SpectralType "M4V" # estimate from mass and radius
|
||
AppMag 12.64
|
||
Radius 137100
|
||
|
||
EllipticalOrbit {
|
||
Period 36.2
|
||
SemiMajorAxis 4.5532 # mass ratio 0.215:0.161
|
||
Eccentricity 0.50
|
||
Inclination 70.41
|
||
AscendingNode 204.85
|
||
ArgOfPericenter 153.35
|
||
MeanAnomaly 169.06
|
||
}
|
||
}
|
||
|
||
"Gliese 299:Ross 619"
|
||
{
|
||
RA 122.98983156
|
||
Dec 8.77305088
|
||
Distance 22.4200 # 145.4757 +/- 0.5695 mas
|
||
SpectralType "M4.5V"
|
||
Radius 160000 # approx. for class
|
||
AppMag 12.834
|
||
}
|
||
|
||
# parameters from Martin et al. (2018)
|
||
"WISE 1405+5534:WISE J140518.39+553421.3"
|
||
{
|
||
RA 211.322480
|
||
Dec 55.572793
|
||
Distance 22.59 # 144.35 +/- 8.60 mas
|
||
SpectralType "Y0V"
|
||
Temperature 400 # guess
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
53020 # Wolf 358
|
||
{
|
||
RA 162.71679684
|
||
Dec 6.80812877
|
||
Distance 22.7291 # 143.4971 +/- 0.0626 mas
|
||
SpectralType "M4V"
|
||
Radius 180000 # approx. for class
|
||
AppMag 11.675
|
||
}
|
||
|
||
Modify 51317 # Gliese 393
|
||
{
|
||
Radius 305000 # approx. for class
|
||
}
|
||
|
||
"2MASS 2146+3813:2MASS J21462206+3813047"
|
||
{
|
||
RA 326.59196805
|
||
Dec 38.21804860
|
||
Distance 22.9603 # 142.0522 +/- 0.0513 mas
|
||
SpectralType "M5V"
|
||
Radius 140000 # approx. for class
|
||
AppMag 12.210
|
||
}
|
||
|
||
Modify 103096 # Gliese 809
|
||
{
|
||
Radius 341000 # approx. for class
|
||
}
|
||
|
||
"GJ 3877:LP 914-54"
|
||
{
|
||
RA 224.15943498
|
||
Dec -28.16350623
|
||
Distance 23.0196 # 141.6865 +/- 0.1063 mas
|
||
SpectralType "M7.0V"
|
||
Radius 84000 # approx. for class
|
||
AppMag 17.141
|
||
}
|
||
|
||
"GJ 1068:Luyten 230-188"
|
||
{
|
||
RA 62.61718071
|
||
Dec -53.60226063
|
||
Distance 23.2047 # 140.5559 +/- 0.0354 mas
|
||
SpectralType "M4.5V"
|
||
Radius 160000 # approx. for class
|
||
AppMag 13.58
|
||
}
|
||
|
||
"GJ 1286"
|
||
{
|
||
RA 353.79359235
|
||
Dec -2.38905966
|
||
Distance 23.4122 # 139.3100 +/- 0.1066 mas
|
||
SpectralType "M5.0V"
|
||
Radius 140000 # approx. for class
|
||
AppMag 14.69
|
||
}
|
||
|
||
# parameters from Martin et al. (2018)
|
||
"WISE 0825+2805:WISE J082507.35+280548.5"
|
||
{
|
||
RA 126.280554
|
||
Dec 28.096545
|
||
Distance 23.461 # 139.02 +/- 4.33 mas
|
||
SpectralType "Y0.5V"
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
# low-quality parallax from Theissen, C. A. (2018), ApJ 862 (2), 173
|
||
# "Parallaxes of Cool Objects with WISE: Filling in for Gaia"
|
||
# http://iopscience.iop.org/article/10.3847/1538-4357/aaccfa/meta
|
||
"WISE 0254+0223:WISE J025409.51+022358.6"
|
||
{
|
||
RA 43.5328583
|
||
Dec 2.3989861
|
||
Distance 23.5 # 139 +/- 40 mas
|
||
SpectralType "T8V"
|
||
Temperature 500 # approx.
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
"V488 Hya:2MASS J08354256-0819237"
|
||
{
|
||
RA 128.92721804
|
||
Dec -8.32316374
|
||
Distance 23.5305 # 138.6098 +/- 0.2781 mas
|
||
SpectralType "L6.5V"
|
||
AbsMag 21.5 # for approximate radius in Celestia
|
||
}
|
||
|
||
# Distance from average of distances from Gaia DR2 parallax for A and B
|
||
Barycenter "Gliese 105" # orbit of (AB) and C unknown
|
||
{
|
||
RA 39.028581069 # mass ratio (0.81:0.082):0.21
|
||
Dec 6.883949884 # A: 138.2084 +/- 0.1436 mas
|
||
Distance 23.591 # B: 138.4637 +/- 0.0886 mas
|
||
}
|
||
|
||
# Masses from Golimowski et al. (2002), AJ 120 (4), 2082
|
||
# "The Very Low Mass Component of the Gliese 105 System"
|
||
# https://iopscience.iop.org/article/10.1086/301567
|
||
Barycenter 12114 "Gliese 105 A"
|
||
{
|
||
RA 39.020334067 # mass ratio 0.81:0.082
|
||
Dec 6.886846623
|
||
Distance 23.599 # 138.2084 +/- 0.1436 mas
|
||
}
|
||
|
||
"Gliese 105 Aa"
|
||
{
|
||
OrbitBarycenter "Gliese 105 A"
|
||
SpectralType "K3V"
|
||
AppMag 5.81
|
||
|
||
EllipticalOrbit {
|
||
Period 61
|
||
SemiMajorAxis 0.11 # mass ratio 0.81:0.082
|
||
Eccentricity 0.67
|
||
Inclination 61
|
||
AscendingNode 356
|
||
ArgOfPericenter 174
|
||
MeanAnomaly 354
|
||
}
|
||
}
|
||
|
||
"Gliese 105 Ab" # SIMBAD calls it GJ 105 C
|
||
{
|
||
OrbitBarycenter "Gliese 105 A"
|
||
SpectralType "M7V"
|
||
AppMag 16.77
|
||
|
||
EllipticalOrbit {
|
||
Period 61
|
||
SemiMajorAxis 1.13 # mass ratio 0.81:0.082
|
||
Eccentricity 0.67
|
||
Inclination 61
|
||
AscendingNode 356
|
||
ArgOfPericenter 354
|
||
MeanAnomaly 354
|
||
}
|
||
}
|
||
|
||
"BX Cet:Gliese 105 B"
|
||
{
|
||
RA 39.06361119
|
||
Dec 6.87164564
|
||
Distance 23.555 # parallax: 138.4637 +/- 0.0886 mas
|
||
AppMag 11.664
|
||
SpectralType "M3.5V"
|
||
Radius 225000 # approx. for class
|
||
}
|
||
|
||
# parameters from Martin et al. (2018)
|
||
# BT-Settl model parameters from Beichman et al. (2014), ApJ 783 (2), 68
|
||
# "WISE Y Dwarfs as Probes of the Brown Dwarf-Exoplanet Connection"
|
||
# https://iopscience.iop.org/article/10.1088/0004-637X/783/2/68/meta
|
||
"WISE 2056+1459:WISE J205628.91+145953.2"
|
||
{
|
||
RA 314.120498
|
||
Dec 14.998118
|
||
Distance 23.580 # 138.32 +/- 3.86 mas
|
||
SpectralType "Y0V"
|
||
Temperature 407
|
||
Radius 65000
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
"GJ 4274:Luyten 788-34"
|
||
{
|
||
RA 335.77915456
|
||
Dec -17.60731501
|
||
Distance 23.6040 # 138.1782 +/- 0.2484 mas
|
||
SpectralType "M4.5Ve"
|
||
Radius 160000 # approx. for class
|
||
AppMag 13.30
|
||
}
|
||
|
||
# Used parallax of component C from Gaia DR2
|
||
Barycenter "Gliese 667:CD-34 11626" # orbit of (AB) & C unknown
|
||
{
|
||
RA 259.7396833 # mass ratio (0.68:0.59):0.35
|
||
Dec -34.99129014
|
||
Distance 23.6316
|
||
}
|
||
|
||
Barycenter 84709 "Gliese 667 AB:CD-34 11626 AB"
|
||
{
|
||
RA 259.7381868
|
||
Dec -34.9897615
|
||
Distance 23.6316 # 138.0171 +/- 0.0918 mas
|
||
}
|
||
|
||
1008507370 "Gliese 667 A:CD-34 11626 A"
|
||
{
|
||
OrbitBarycenter "Gliese 667 AB"
|
||
SpectralType "K4V"
|
||
AppMag 5.90
|
||
|
||
EllipticalOrbit {
|
||
Period 42.15
|
||
SemiMajorAxis 5.98 # mass ratio 0.68:0.59
|
||
Eccentricity 0.58
|
||
Inclination 136.65
|
||
AscendingNode 305.37
|
||
ArgOfPericenter 183.60
|
||
MeanAnomaly 205.84
|
||
}
|
||
}
|
||
|
||
2008507370 "Gliese 667 B:CD-34 11626 B"
|
||
{
|
||
OrbitBarycenter "Gliese 667 AB"
|
||
SpectralType "K5V"
|
||
AppMag 5.90
|
||
|
||
EllipticalOrbit {
|
||
Period 42.15
|
||
SemiMajorAxis 7.13 # mass ratio 0.68:0.59
|
||
Eccentricity 0.58
|
||
Inclination 136.65
|
||
AscendingNode 305.37
|
||
ArgOfPericenter 3.60
|
||
MeanAnomaly 205.84
|
||
}
|
||
}
|
||
|
||
"Gliese 667 C:CD-34 11626 C"
|
||
{
|
||
RA 259.74511327
|
||
Dec -34.99683693
|
||
Distance 23.6316
|
||
SpectralType "M1.5V"
|
||
Radius 324000 # approx. for class
|
||
AppMag 10.22
|
||
}
|
||
|
||
"WISE 0607+2429:WISEP J060738.65+242953.4"
|
||
{
|
||
RA 91.91259273
|
||
Dec 24.49911608
|
||
Distance 23.8166 # 136.9449 +/- 0.6553 mas
|
||
SpectralType "L9V"
|
||
AbsMag 23 # approx. for radius in Celestia
|
||
}
|
||
|
||
# parameters from Martin et al. (2018)
|
||
# BT-Settl model parameters from Beichman et al. (2014), ApJ 783 (2), 68
|
||
# "WISE Y Dwarfs as Probes of the Brown Dwarf-Exoplanet Connection"
|
||
# https://iopscience.iop.org/article/10.1088/0004-637X/783/2/68/meta
|
||
"WISE 1738+2732:WISE J173835.53+273259.0"
|
||
{
|
||
RA 264.648060
|
||
Dec 27.549749
|
||
Distance 23.936 # 136.26 +/- 4.27 mas
|
||
SpectralType "Y0V"
|
||
Temperature 409
|
||
Radius 64300
|
||
AbsMag 40 # extremely low
|
||
}
|
||
|
||
"2MASS 1507-1627:2MASS J15074769-1627386"
|
||
{
|
||
RA 226.94864865
|
||
Dec -16.46114400
|
||
Distance 24.1180 # 135.2332 +/- 0.3274 mas
|
||
SpectralType "L5V"
|
||
AbsMag 21 # for approximate radius in Celestia
|
||
}
|
||
|
||
# Delfosse et al. (1999), A&A 344, 897
|
||
# "New neighbours. I. 13 new companions to nearby M dwarfs"
|
||
# http://adsabs.harvard.edu/abs/1999A&A...344..897D
|
||
Barycenter 83945 "GJ 3991:Giclas 203-47"
|
||
{
|
||
RA 257.38142860
|
||
Dec 43.68131523
|
||
Distance 24.2320 # 134.5971 +/- 0.4894 mas
|
||
}
|
||
|
||
"GJ 3991 A:Giclas 203-47 A"
|
||
{
|
||
OrbitBarycenter "Giclas 203-47"
|
||
SpectralType "M3.5V"
|
||
Radius 225000 # approx. for class
|
||
AppMag 11.80
|
||
|
||
EllipticalOrbit {
|
||
Period 0.04 # 15 d
|
||
SemiMajorAxis 0.6 # estimated from mass ratio 0.3:0.5
|
||
Eccentricity 0.07
|
||
ArgOfPericenter 180
|
||
}
|
||
}
|
||
|
||
"GJ 3991 B:Giclas 203-47 B"
|
||
{
|
||
OrbitBarycenter "Giclas 203-47"
|
||
SpectralType "D"
|
||
AbsMag 13.7 # for a 0.5-solar-mass white dwarf
|
||
|
||
EllipticalOrbit {
|
||
Period 0.04 # 15 d
|
||
SemiMajorAxis 0.4 # estimated from mass ratio 0.3:0.5
|
||
Eccentricity 0.07
|
||
}
|
||
}
|
||
|
||
3765 # HD 4628
|
||
{
|
||
RA 12.09573477
|
||
Dec 5.28061376
|
||
Distance 24.2497 # 134.4990 +/- 0.0890 mas
|
||
SpectralType "K2.5V"
|
||
AppMag 5.74
|
||
}
|
||
|
||
# apparent magnitude from Henry et al. (2006) AJ 132 (6), 2360
|
||
# "The Solar Neighborhood. XVII. Parallax Results from the CTIOPI 0.9 m Program:
|
||
# 20 New Members of the RECONS 10 Parsec Sample"
|
||
# http://iopscience.iop.org/1538-3881/132/6/2360/pdf/1538-3881_132_6_2360.pdf
|
||
"GJ 4248:LHS 3746:Luyten 499-46"
|
||
{
|
||
RA 330.6223980
|
||
Dec -37.0809310
|
||
Distance 24.287 # 134.29 +/- 1.31 mas
|
||
SpectralType "M3.0V"
|
||
Radius 270000 # approx. for class
|
||
AppMag 11.76
|
||
}
|
||
|
||
Modify 106255 # Wolf 922
|
||
{
|
||
Radius 160000 # approx. for class
|
||
}
|
||
|
||
2021 # Bet Hyi
|
||
{
|
||
RA 6.43779316
|
||
Dec -77.25424612
|
||
Distance 24.327 # 134.07 +/- 0.11 mas
|
||
SpectralType "G0V"
|
||
AppMag 2.79
|
||
}
|
||
|
||
# Parameters from Bond et al. (2020), ApJ 904 (2), 112
|
||
# "Hubble Space Telescope Astrometry of the Metal-poor Visual Binary μ Cassiopeiae:
|
||
# Dynamical Masses, Helium Content, and Age"
|
||
Barycenter 5336 "MU Cas:30 Cas:Gliese 53"
|
||
{
|
||
RA 17.06831127
|
||
Dec 54.9203406
|
||
Distance 24.586 # 132.66 +/- 0.69 mas
|
||
}
|
||
|
||
"MU Cas A:30 Cas A:Gliese 53 A"
|
||
{
|
||
OrbitBarycenter "MU Cas"
|
||
SpectralType "G5V"
|
||
AppMag 5.166
|
||
Radius 548900
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 21.568
|
||
SemiMajorAxis 1.4186 # mass ratio 0.7440:0.1728
|
||
Eccentricity 0.5885
|
||
Inclination 25.62
|
||
AscendingNode 344.53
|
||
ArgOfPericenter 124.96
|
||
MeanAnomaly 46.34
|
||
}
|
||
}
|
||
|
||
"MU Cas B:30 Cas B:Gliese 53 B"
|
||
{
|
||
OrbitBarycenter "MU Cas"
|
||
SpectralType "MVI"
|
||
AppMag 11.00
|
||
|
||
EllipticalOrbit {
|
||
Period 21.568
|
||
SemiMajorAxis 6.1080 # mass ratio 0.7440:0.1728
|
||
Eccentricity 0.5885
|
||
Inclination 25.62
|
||
AscendingNode 344.53
|
||
ArgOfPericenter 304.96
|
||
MeanAnomaly 46.34
|
||
}
|
||
}
|
||
|
||
7981 # 107 Psc
|
||
{
|
||
RA 25.62401456
|
||
Dec 20.26851674
|
||
Distance 24.8046 # 131.4903 +/- 0.1515 mas
|
||
SpectralType "K1V"
|
||
AppMag 5.24
|
||
}
|
||
|
||
# Rotational parameters based on disk parameters, from
|
||
# MacGregor et al. (2017), ApJ 842 (1), 8
|
||
# "A Complete ALMA Map of the Fomalhaut Debris Disk"
|
||
# https://arxiv.org/abs/1705.05867
|
||
Modify 113368 # Fomalhaut
|
||
{
|
||
UniformRotation
|
||
{
|
||
Inclination 83.2 # rotation pole matches debris disk
|
||
AscendingNode 177.5 # inclination 65.6 deg, position angle 337.9 deg
|
||
}
|
||
}
|
||
|
||
113283 # TW PsA (Fomalhaut B)
|
||
{
|
||
RA 344.10022206
|
||
Dec -31.56556530
|
||
Distance 24.8144 # 131.4380 +/- 0.0856 mas
|
||
SpectralType "K4Ve"
|
||
AppMag 6.48
|
||
}
|
||
|
||
Modify 65859 # Ross 490
|
||
{
|
||
Radius 341000 # approx. for class
|
||
}
|
||
|
||
"Giclas 141-36"
|
||
{
|
||
RA 282.07307098
|
||
Dec 7.68921596
|
||
Distance 24.8596 # 131.1990 +/- 0.0788 mas
|
||
SpectralType "M5.0V"
|
||
Radius 140000 # approx. for class
|
||
AppMag 14.248
|
||
}
|
||
|
||
"GJ 4053:LP 71-165"
|
||
{
|
||
RA 274.73846839
|
||
Dec 66.19258373
|
||
Distance 24.9408 # 130.7722 +/- 0.0443 mas
|
||
SpectralType "M4.5V"
|
||
Radius 160000 # approx. for class
|
||
AppMag 13.406
|
||
}
|
||
|
||
"Fomalhaut C:ALF PsA C:LP 876-10"
|
||
{
|
||
RA 342.01871887
|
||
Dec -24.36881191
|
||
Distance 25.0305 # 130.3032 +/- 0.0746 mas
|
||
SpectralType "M4.0Ve"
|
||
Radius 160000 # approx. for class
|
||
AppMag 12.624
|
||
}
|
||
|
||
# rotational parameters from Monnier et al. (2012), ApJL 761 (1), L3
|
||
# "Resolving Vega and the Inclination Controversy with CHARA/MIRC"
|
||
# https://arxiv.org/abs/1211.6055
|
||
Modify 91262 # Vega
|
||
{
|
||
SemiAxes [ 1 0.887 1 ] # equatorial radius 12.7% greater than polar
|
||
|
||
UniformRotation
|
||
{
|
||
Period 17.04
|
||
Inclination 150.91 # inclination (i) = 6.2
|
||
AscendingNode 208.14 # pole position angle = -58
|
||
}
|
||
}
|
||
|
||
Modify 12781 # Gliese 109
|
||
{
|
||
Radius 225000 # approx. for class
|
||
}
|
||
|
||
#========================================================================
|
||
# Nearby multiple star with poor Hipparcos parallax
|
||
|
||
# Used Gaia DR2 parallax for B
|
||
Barycenter 55203 "Alula Australis:XI UMa:53 UMa:Gliese 423:ADS 8119"
|
||
{
|
||
RA 169.545550
|
||
Dec 31.529289
|
||
Distance 28.4885 # 114.4867 +/- 0.4316 mas
|
||
}
|
||
|
||
# Masses from Fuhrmann et al. (2016), MNRAS 459 (2), 1682
|
||
# "Evidence for very nearby hidden white dwarfs"
|
||
# https://doi.org/10.1093/mnras/stw760
|
||
Barycenter 1026342520 "Alula Australis A:XI UMa A:53 UMa A:Gliese 423 A:ADS 8119 A"
|
||
{
|
||
OrbitBarycenter "Alula Australis"
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 59.88
|
||
SemiMajorAxis 9.65 # mass ratio (0.98:0.38):(0.88:0.17)
|
||
Eccentricity 0.40
|
||
Inclination 14.09
|
||
AscendingNode 192.13
|
||
ArgOfPericenter 9.70
|
||
MeanAnomaly 29.62
|
||
}
|
||
}
|
||
|
||
Barycenter 2026342520 "Alula Australis B:XI UMa B:53 UMa B:Gliese 423 B:ADS 8119 B"
|
||
{
|
||
OrbitBarycenter "Alula Australis"
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 59.88
|
||
SemiMajorAxis 12.50 # mass ratio (0.98:0.38):(0.88:0.17)
|
||
Eccentricity 0.40
|
||
Inclination 14.09
|
||
AscendingNode 192.13
|
||
ArgOfPericenter 189.70
|
||
MeanAnomaly 29.62
|
||
}
|
||
}
|
||
|
||
"Alula Australis Aa:XI UMa Aa:53 UMa Aa:Gliese 423 Aa"
|
||
{
|
||
OrbitBarycenter "Alula Australis A"
|
||
SpectralType "G0V"
|
||
AppMag 4.33
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 1.834
|
||
SemiMajorAxis 0.13 # mass ratio 0.98:0.38
|
||
Eccentricity 0.61
|
||
Inclination 146.3
|
||
AscendingNode 203.8
|
||
ArgOfPericenter 285.2
|
||
MeanAnomaly 73.4
|
||
}
|
||
}
|
||
|
||
"Alula Australis Ab:XI UMa Ab:53 UMa Ab"
|
||
{
|
||
OrbitBarycenter "Alula Australis A"
|
||
SpectralType "M2V" # from mass estimate of 0.38
|
||
AbsMag 10.3 # for estimated spectral class
|
||
|
||
EllipticalOrbit { # fully specified orientation
|
||
Period 1.834
|
||
SemiMajorAxis 0.34 # mass ratio 0.98:0.38
|
||
Eccentricity 0.61
|
||
Inclination 146.3
|
||
AscendingNode 203.8
|
||
ArgOfPericenter 105.2
|
||
MeanAnomaly 73.4
|
||
}
|
||
}
|
||
|
||
"Alula Australis Ba:XI UMa Ba:53 UMa Ba:Gliese 423 Ba"
|
||
{
|
||
OrbitBarycenter "Alula Australis B"
|
||
SpectralType "G0V"
|
||
AppMag 4.8
|
||
|
||
EllipticalOrbit {
|
||
Period 0.0109 # 3.981 d
|
||
SemiMajorAxis 0.008 # mass ratio 0.88:0.17
|
||
Eccentricity 0
|
||
Inclination 102 # plane-of-inclination:
|
||
AscendingNode 70 # 12.7 deg
|
||
ArgOfPericenter 180
|
||
}
|
||
|
||
UniformRotation {
|
||
Inclination 102 # guess, to match orbit
|
||
AscendingNode 70
|
||
}
|
||
}
|
||
|
||
"Alula Australis Bb:XI UMa Bb:53 UMa Bb:Gliese 423 Bb"
|
||
# Fuhrmann et al. (2016) suggest it could be a white dwarf
|
||
{
|
||
OrbitBarycenter "Alula Australis B"
|
||
SpectralType "D"
|
||
AbsMag 11.3 # for approximate radius in Celestia
|
||
|
||
EllipticalOrbit {
|
||
Period 0.0109 # 3.981 d
|
||
SemiMajorAxis 0.056 # mass ratio 0.88:0.17
|
||
Eccentricity 0
|
||
Inclination 102 # plane-of-inclination:
|
||
AscendingNode 70 # 12.7 deg
|
||
}
|
||
|
||
UniformRotation {
|
||
Inclination 102 # guess, to match orbit
|
||
AscendingNode 70
|
||
}
|
||
}
|
||
|
||
# Gaia DR2 suggests WDS J11182+3132C is an optical pair
|
||
# Wright et al. (2013), A T8.5 Brown Dwarf Member of the xi Ursae Majoris System"
|
||
# https://iopscience.iop.org/1538-3881/145/3/84/
|
||
"Alula Australis C:WISE 1118+3125:WISE J111838.70+312537.9"
|
||
{
|
||
RA 169.66125400
|
||
Dec 31.42720000
|
||
Distance 28.4885
|
||
SpectralType "T8.5V"
|
||
Temperature 600 # approx.
|
||
Radius 60000 # approx.
|
||
AbsMag 40 # extremely low
|
||
} |