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celestia/data/nearstars.stc

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# Nearby stars and star orbits out to 25 light years, supplementary
# to Celestia's stars.dat.
# Data are mainly derived from the RECONS survey tabulation at
# http://www.chara.gsu.edu/RECONS/TOP100.posted.htm. In particular, the
# distances given are derived from RECONS's weighted average parallaxes,
# rather than pure Hipparcos data.
# Orbits are obtained largely from the Sixth Catalog of Orbits of Visual
# Binary Stars (http://ad.usno.navy.mil/wds/orb6.html) and the Ninth
# Catalogue of Spectroscopic Binary Orbits (http://sb9.astro.ulb.ac.be).
# For binary orbits, the direction of an orbit's node on the plane of the
# 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 the Earth.
# For a few orbits the nature of the node is known - these are
# marked with the phrase "fully specified orientation".
# Barycenters positions are mainly based on mass estimates from RECONS:
# the figures used are added as comments 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
RotationPeriod 609.12 # 25.38 days
Obliquity 7.25 # correct orientation relative to ecliptic
EquatorAscendingNode 75.77 #
RotationOffset 23.00 # standard meridian
}
70890 # Proxima Cen
{
RA 217.429167
Dec -62.679444
Distance 4.225
SpectralType "M5.5V"
AppMag 11.09
}
Barycenter "Rigel Kentaurus:Toliman:ALF Cen:Gliese 559"
{
RA 219.917516 # mass ratio 1.09:0.92
Dec -60.837128 #
Distance 4.365
}
71683 # ALF Cen A
{
OrbitBarycenter "ALF Cen"
SpectralType "G2V"
AppMag 0.01
EllipticalOrbit {
Period 79.914
SemiMajorAxis 10.765 # mass ratio 1.09:0.92
Eccentricity 0.5179
Inclination 82.986
AscendingNode 67.726
ArgOfPericenter 3.772
MeanAnomaly 200.119
}
}
71681 # ALF cen B
{
OrbitBarycenter "ALF Cen"
SpectralType "K0V"
AppMag 1.34
EllipticalOrbit {
Period 79.914
SemiMajorAxis 12.755 # mass ratio 1.09:0.92
Eccentricity 0.5179
Inclination 82.986
AscendingNode 67.726
ArgOfPericenter 183.772
MeanAnomaly 200.119
}
}
87937 # Barnard's Star
{
RA 269.452083
Dec 4.693333
Distance 5.963
SpectralType "M4.0V"
AppMag 9.53
}
"Wolf 359:CN Leo:Gliese 406"
{
RA 164.121783
Dec 7.014722
Distance 7.782
SpectralType "M6.0V"
AppMag 13.44
}
54035 # Lalande 21185
{
RA 165.834167
Dec 35.970000
Distance 8.290
SpectralType "M2.0V"
AppMag 7.47
}
Barycenter "Sirius:Alhabor:ALF CMa:9 CMa:Gliese 244"
{
RA 101.287083
Dec -16.716111
Distance 8.583
}
32349 "Sirius A:Alhabor A:ALF CMa A:9 CMa A:Gliese 244 A"
{
OrbitBarycenter "Sirius"
SpectralType "A1V"
AppMag -1.43
EllipticalOrbit { # fully specified orientation
Period 50.09
SemiMajorAxis 6.73 # mass ratio 1.99:1.03
Eccentricity 0.5923
Inclination 97.51
AscendingNode 161.33
ArgOfPericenter 4.56
MeanAnomaly 40.89
}
}
"Sirius B:Alhabor B:ALF CMa B:9 CMa B:Gliese 244 B"
{
OrbitBarycenter "Sirius"
SpectralType "DA2"
AppMag 8.44
EllipticalOrbit { # fully specified orientation
Period 50.09
SemiMajorAxis 13.00 # mass ratio 1.99:1.03
Eccentricity 0.592
Inclination 97.51
AscendingNode 161.33
ArgOfPericenter 184.56
MeanAnomaly 40.89
}
}
Barycenter "Luyten 726-8:Gliese 65"
{
RA 24.755529
Dec -17.950278
Distance 8.728
}
"Luyten 726-8 A:Gliese 65 A:BL Cet"
{
OrbitBarycenter "Luyten 726-8"
SpectralType "M5.5V"
AppMag 12.54
EllipticalOrbit {
Period 26.52
SemiMajorAxis 2.61 # mass ratio 0.1:0.1
Eccentricity 0.62
Inclination 101.3
AscendingNode 159.5
ArgOfPericenter 39.7
MeanAnomaly 21.3
}
}
"Luyten 726-8 B:Gliese 65 B:UV Cet"
{
OrbitBarycenter "Luyten 726-8"
SpectralType "M6.0V"
AppMag 12.99
EllipticalOrbit {
Period 26.52
SemiMajorAxis 2.61 # mass ratio 0.1:0.1
Eccentricity 0.62
Inclination 101.3
AscendingNode 159.5
ArgOfPericenter 219.7
MeanAnomaly 21.3
}
}
92403 # Ross 154
{
RA 282.455833
Dec -23.836111
Distance 9.681
SpectralType "M3.5V"
AppMag 10.43
}
"Ross 248:HH And:Gliese 905"
{
RA 355.479875
Dec 44.177222
Distance 10.322
SpectralType "M5.5V"
AppMag 12.29
}
16537 # Eps Eri
{
RA 53.232500
Dec -9.458333
Distance 10.522
SpectralType "K2V"
AppMag 3.73
}
114046 # Lacaille 9352
{
RA 346.466667
Dec -35.853056
Distance 10.742
SpectralType "M1.5V"
AppMag 7.34
}
57548 # Ross 128
{
RA 176.935000
Dec 0.804444
Distance 10.919
SpectralType "M4.0V"
AppMag 11.13
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
Barycenter "Luyten 789-6:Gliese 866"
{
RA 339.640833
Dec -15.300806
Distance 11.266
}
Barycenter "Luyten 789-6 A:Gliese 866 A"
{
OrbitBarycenter "Luyten 789-6"
EllipticalOrbit {
Period 2.2506
SemiMajorAxis 0.42 # mass ratio 0.106:(0.105+0.095)
Eccentricity 0.437
Inclination 96.2
AscendingNode 133.5
ArgOfPericenter 76.4
MeanAnomaly 241.7
}
}
"Luyten 789-6 Aa:Gliese 866 Aa:EZ Aqr"
{
OrbitBarycenter "Luyten 789-6 A"
SpectralType "M5.0V"
AppMag 13.33
EllipticalOrbit {
Period 0.010 # 3.8dys
SemiMajorAxis 0.013 # to match period and mass ratio 0.105:0.095
Inclination 96 # guess - to match plane of B
AscendingNode 133 # guess - to match plane of B
}
}
"Luyten 789-6 Ab:Gliese 866 Ab"
{
OrbitBarycenter "Luyten 789-6 A"
SpectralType "M6V" # from apparent magnitude
AppMag 14.03
EllipticalOrbit {
Period 0.010 # 3.8dys
SemiMajorAxis 0.014 # to match period and mass ratio 0.105:0.095
Inclination 96 # guess - to match plane of B
AscendingNode 133 # guess - to match plane of B
ArgOfPericenter 180
}
}
"Luyten 789-6 B:Gliese 866 B"
{
OrbitBarycenter "Luyten 789-6"
SpectralType "M5V" # from apparent magnitude
AppMag 13.27
EllipticalOrbit {
Period 2.2506
SemiMajorAxis 0.78 # mass ratio 0.106:(0.105+0.095)
Eccentricity 0.437
Inclination 96.2
AscendingNode 133.5
ArgOfPericenter 256.4
MeanAnomaly 241.7
}
}
Barycenter "Procyon:Elgomaisa:ALF CMi:10 CMi:Gliese 280"
{
RA 114.82724
Dec 5.2275076
Distance 11.402
}
37279 "Procyon A:Elgomaisa A:ALF CMi A:10 CMi A:Gliese 280 A"
{
OrbitBarycenter "Procyon"
SpectralType "F5IV"
AppMag 0.38
EllipticalOrbit {
Period 40.82
SemiMajorAxis 4.13 # mass ratio 1.57:0.6
Eccentricity 0.407
Inclination 42.9
AscendingNode 27.8
ArgOfPericenter 88.4
MeanAnomaly 282.5
}
}
"Procyon B:Elgomaisa B:ALF CMi B:10 CMi B:Gliese 280 B"
{
OrbitBarycenter "Procyon"
SpectralType "DA"
AppMag 10.70
EllipticalOrbit {
Period 40.82
SemiMajorAxis 10.80 # mass ratio 1.57:0.6
Eccentricity 0.407
Inclination 42.9
AscendingNode 27.8
ArgOfPericenter 268.4
MeanAnomaly 282.5
}
}
Barycenter "61 Cyg:Gliese 820"
{
RA 316.714507 # mass ratio 0.7:0.63
Dec 38.738139 #
Distance 11.403
}
104214 # 61 Cyg A
{
OrbitBarycenter "61 Cyg"
SpectralType "K5V"
AppMag 5.21
EllipticalOrbit {
Period 659
SemiMajorAxis 40.40 # mass ratio 0.7:0.63
Eccentricity 0.48
Inclination 132
AscendingNode 165
ArgOfPericenter 195
MeanAnomaly 165
}
}
104217 # 61 Cyg B
{
OrbitBarycenter "61 Cyg"
SpectralType "K7V"
AppMag 6.03
EllipticalOrbit {
Period 659
SemiMajorAxis 44.90 # mass ratio 0.7:0.63
Eccentricity 0.48
Inclination 132
AscendingNode 165
ArgOfPericenter 15
MeanAnomaly 165
}
}
Barycenter "Struve 2398:Gliese 725"
{
RA 280.701371 # mass ratio 0.35:0.26
Dec 59.624455 #
Distance 11.525
}
91768 # Struve 2398 A
{
OrbitBarycenter "Struve 2398"
SpectralType "M3.0V"
AppMag 8.90
EllipticalOrbit {
Period 408
SemiMajorAxis 20.91 # mass ratio 0.35:0.26
Eccentricity 0.53
Inclination 112
AscendingNode 146.1
ArgOfPericenter 243.5
MeanAnomaly 198.5
}
}
91772 # Struve 2398 B
{
OrbitBarycenter "Struve 2398"
SpectralType "M3.5V"
AppMag 9.69
EllipticalOrbit {
Period 408
SemiMajorAxis 28.14 # mass ratio 0.35:0.26
Eccentricity 0.53
Inclination 112
AscendingNode 146.1
ArgOfPericenter 63.5
MeanAnomaly 198.5
}
}
Barycenter "Groombridge 34:Gliese 15"
{
RA 4.595417
Dec 44.023056
Distance 11.624
}
1475 "Groombridge 34 A:Gliese 15 A:GX And"
{
OrbitBarycenter "Groombridge 34"
SpectralType "M1.5V"
AppMag 8.08
EllipticalOrbit {
Period 2600
SemiMajorAxis 36.1 # mass ratio 0.49:0.16
Eccentricity 0
Inclination 67.9
AscendingNode 308.4
MeanLongitude 23.0
}
}
"Groombridge 34 B:Gliese 15 B:GQ And"
{
OrbitBarycenter "Groombridge 34"
SpectralType "M3.5V"
AppMag 11.06
EllipticalOrbit {
Period 2600
SemiMajorAxis 110.7 # mass ratio 0.49:0.16
Eccentricity 0
Inclination 67.9
AscendingNode 308.4
MeanLongitude 203.0
}
}
Barycenter "EPS Ind:Gliese 845" # orbit of A & B components unknown
{
RA 330.841091 # mass ratio 0.77:(0.04+0.03)
Dec -56.780045
Distance 11.824
}
108870 "EPS Ind A:Gliese 845 A"
{
RA 330.82266
Dec -56.779804
Distance 11.824
SpectralType "K5V"
AppMag 4.69
}
# McCaughrean, M.J. et al.(2004) "Eps Indi Ba,Bb: The nearest binary
# brown dwarf" A&A 413, 1029.
# (http://arxiv.org/PS_cache/astro-ph/pdf/0309/0309256.pdf)
Barycenter "EPS Ind B:Gliese 845 B"
{
RA 331.043833
Dec -56.782694
Distance 11.824
}
"EPS Ind Ba:Gliese 845 Ba"
{
OrbitBarycenter "EPS Ind B"
SpectralType "T1V"
AbsMag 25.8 # for approximate radius in Celestia
EllipticalOrbit {
Period 15.5 # approximate orbit
SemiMajorAxis 0.99 # mass ratio 47:28J
}
}
"EPS Ind Bb:Gliese 845 Bb"
{
OrbitBarycenter "EPS Ind B"
SpectralType "T6V"
AbsMag 33.5 # for approximate radius in Celestia
EllipticalOrbit {
Period 15.5 # approximate orbit
SemiMajorAxis 1.66 # mass ratio 47:28J
ArgOfPericenter 180
}
}
"DX Cnc:Giclas 51-15:GJ 1111"
{
RA 127.456125
Dec 26.775611
Distance 11.826
SpectralType "M6.5V"
AppMag 14.78
}
8102 # Tau Cet
{
RA 26.017083
Dec -15.937500
Distance 11.887
SpectralType "G8V"
AppMag 3.49
}
"Luyten 372-58:RECONS 1:GJ 1061"
{
RA 54.000000
Dec -44.512778
Distance 12.049
SpectralType "M5.5V"
AppMag 13.03
}
5643 # Luyten 725-032
{
RA 18.127500
Dec -16.999167
Distance 12.132
SpectralType "M4.5V"
AppMag 12.02
}
36208 # Luyten's Star
{
RA 111.852083
Dec 5.225833
Distance 12.366
SpectralType "M3.5V"
AppMag 9.86
}
"Teegarden's Star:SO0253+1652:SO025300.5+165258"
{
RA 43.253500
Dec 16.881389
Distance 12.541
SpectralType "M7.0V"
AppMag 15.40
}
# Biller B.A. et al.(2006) "Discovery of the Closest Brown Dwarf to
# the Sun? A Methane Rich Brown Dwarf Around the Nearby M8.5 Star
# SCR 1845"
# (http://xxx.uni-augsburg.de/PS_cache/astro-ph/pdf/0601/0601441.pdf)
Barycenter "SCR 1845-6357"
{
RA 281.260833
Dec -63.964444
Distance 12.571
}
"SCR 1845-6357 A"
{
OrbitBarycenter "SCR 1845-6357"
SpectralType "M8.5V"
AppMag 17.39
EllipticalOrbit {
Period 23.5 # 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 23.5 # estimate
SemiMajorAxis 2.4 # estimated mass ratio 0.07:0.045
}
}
24186 # Kapteyn's Star
{
RA 77.919167
Dec -45.018333
Distance 12.777
SpectralType "M1.5VI"
AppMag 8.84
}
105090 # Lacaille 8760
{
RA 319.313750
Dec -38.867500
Distance 12.870
SpectralType "M0.0V"
AppMag 6.67
}
Barycenter "Kruger 60:Gliese 860"
{
RA 336.997917
Dec 57.695833
Distance 13.149
}
110893 "Kruger 60 A:Gliese 860 A"
{
OrbitBarycenter "Kruger 60"
SpectralType "M3.0V"
AppMag 9.79
EllipticalOrbit {
Period 44.67
SemiMajorAxis 3.49 # mass ratio 0.28:0.16
Eccentricity 0.41
Inclination 37.0
AscendingNode 126.6
ArgOfPericenter 264.1
MeanAnomaly 240.0
}
}
"Kruger 60 B:DO Cep:Gliese 860 B"
{
OrbitBarycenter "Kruger 60"
SpectralType "M4.0V"
AppMag 11.41
EllipticalOrbit {
Period 44.67
SemiMajorAxis 6.12 # mass ratio 0.28:0.16
Eccentricity 0.41
Inclination 37.0
AscendingNode 126.6
ArgOfPericenter 84.1
MeanAnomaly 240.0
}
}
"DENIS 1048-3956:RECONS 2"
{
Texture "browndwarf.*"
RA 162.061250
Dec -39.935000
Distance 13.167
SpectralType "M8.5V"
AppMag 17.29
}
Barycenter "Ross 614:Gliese 234"
{
RA 97.347500
Dec -2.813889
Distance 13.349
}
30920 "Ross 614 A:V577 Mon:Gliese 234 A"
{
OrbitBarycenter "Ross 614"
SpectralType "M4.5V"
AppMag 11.15
EllipticalOrbit {
Period 16.5
SemiMajorAxis 1.67 # mass ratio 0.17:0.10
Eccentricity 0.38
Inclination 37
AscendingNode 71
ArgOfPericenter 131
MeanAnomaly 0
}
}
"Ross 614 B:Gliese 234 B"
{
OrbitBarycenter "Ross 614"
SpectralType "M7V"
AppMag 14.23
EllipticalOrbit {
Period 16.5
SemiMajorAxis 2.83 # mass ratio 0.17:0.10
Eccentricity 0.38
Inclination 37
AscendingNode 71
ArgOfPericenter 311
MeanAnomaly 0
}
}
80824 # Wolf 1061
{
RA 247.575417
Dec -12.662500
Distance 13.820
SpectralType "M3.0V"
AppMag 10.07
}
3829 # van Maanen's Star
{
RA 12.291250
Dec 5.388611
Distance 14.066
SpectralType "DZ7"
AppMag 12.38
}
439 # Cordoba 32416
{
RA 1.351667
Dec -37.357500
Distance 14.231
SpectralType "M3.0V"
AppMag 8.55
}
Barycenter "Wolf 424:Gliese 473"
{
RA 188.321667
Dec 9.020833
Distance 14.312
}
"Wolf 424 A:Gliese 473 A"
{
OrbitBarycenter "Wolf 424"
SpectralType "M5.5V"
AppMag 13.18
EllipticalOrbit {
Period 15.9
SemiMajorAxis 1.92 # mass ratio 0.14:0.13
Eccentricity 0.3
Inclination 28.7
AscendingNode 359.5
ArgOfPericenter 81.1
MeanAnomaly 169.8
}
}
"Wolf 424 B:FL Vir:Gliese 473 B"
{
OrbitBarycenter "Wolf 424"
SpectralType "M5.5V"
AppMag 13.17
EllipticalOrbit {
Period 15.9
SemiMajorAxis 2.06 # mass ratio 0.14:0.13
Eccentricity 0.3
Inclination 28.7
AscendingNode 359.5
ArgOfPericenter 261.1
MeanAnomaly 169.8
}
}
"Luyten 1159-16:TZ Ari:Gliese 83.1"
{
RA 30.055000
Dec 13.052222
Distance 14.509
SpectralType "M4.5V"
AppMag 12.27
}
86162 # Gliese 687
{
RA 264.107917
Dec 68.339167
Distance 14.793
SpectralType "M3.0V"
AppMag 9.17
}
"LP 731-58:GJ 3622"
{
RA 162.052500
Dec -11.337222
Distance 14.805
SpectralType "M6.5V"
AppMag 15.60
}
85523 # Gliese 674
{
RA 262.166250
Dec -46.895278
Distance 14.809
SpectralType "M3.0V"
AppMag 9.38
}
Barycenter "GJ 1245" # orbit of A & B components unknown
{
RA 298.477317 # mass ratio (0.11+0.07):0.10
Dec 44.415377 #
Distance 14.812
}
Barycenter "GJ 1245 A"
{
RA 298.475833
Dec 44.415278
Distance 14.812
}
"GJ 1245 Aa:V1581 Cyg"
{
OrbitBarycenter "GJ 1245 A"
SpectralType "M5.5V"
AppMag 13.46
EllipticalOrbit {
Period 15.22
SemiMajorAxis 0.49 # mass ratio 0.11:0.07
Eccentricity 0.32
Inclination 20
AscendingNode 197
ArgOfPericenter 58
MeanAnomaly 40
}
}
"GJ 1245 Ab"
{
OrbitBarycenter "GJ 1245 A"
SpectralType "M7.5V" # from low luminosity
AppMag 16.75
EllipticalOrbit {
Period 15.22
SemiMajorAxis 0.78 # mass ratio 0.11:0.07
Eccentricity 0.32
Inclination 20
AscendingNode 197
ArgOfPericenter 238
MeanAnomaly 40
}
}
"GJ 1245 B"
{
RA 298.480000
Dec 44.415556
Distance 14.812
SpectralType "M6.0V"
AppMag 14.01
}
57367 # Luyten 145-141
{
RA 176.428750
Dec -64.841389
Distance 15.060
SpectralType "DQ6"
AppMag 11.50
}
"GJ 1002"
{
RA 1.682500
Dec -7.539444
Distance 15.313
SpectralType "M5.5V"
AppMag 13.76
}
113020 # Ross 780
{
RA 343.319583
Dec -14.263611
Distance 15.342
SpectralType "M3.5V"
AppMag 10.17
}
"Luyten 143-23:GJ 3618"
{
RA 161.132500
Dec -61.193889
Distance 15.610
SpectralType "M5.5V"
AppMag 13.92
}
Barycenter "Lalande 21258:Gliese 412" # orbits of A & B unknown
{
RA 166.370443 # mass ratio 0.48:0.10
Dec 43.525816 #
Distance 15.832
}
54211 "Lalande 21258 A:Gliese 412 A"
{
RA 166.369167
Dec 43.526667
Distance 15.832
SpectralType "M1.0V"
AppMag 8.77
}
"Lalande 21258 B:WX UMa:Gliese 412 B"
{
RA 166.376667
Dec 43.521667
Distance 15.832
SpectralType "M5.5V"
AppMag 14.48
}
49908 # Groombridge 1618
{
RA 152.842083
Dec 49.454167
Distance 15.848
SpectralType "K7.0V"
AppMag 6.59
}
"AD Leo:Gliese 388"
{
RA 154.901667
Dec 19.869444
Distance 15.942
SpectralType "M3.0V"
AppMag 9.32
}
106440 # Luyten 354-89
{
RA 323.391667
Dec -49.008889
Distance 16.085
SpectralType "M3.0V"
AppMag 8.66
}
"LP 944-20"
{
Texture "browndwarf.*"
RA 54.896667
Dec -35.428056
Distance 16.195
SpectralType "M9.0V"
AppMag 18.50
}
"DENIS 0255-4700"
{
RA 43.765417
Dec -47.014444
Distance 16.197
SpectralType "L7.5V"
AppMag 22.92
}
86214 # Gliese 682
{
RA 264.265417
Dec -44.319167
Distance 16.337
SpectralType "M4.5V"
AppMag 10.95
}
Barycenter "Keid:OMI2 Eri:40 Eri:Gliese 166" # Orbits of A & (BC) unknown
{
RA 63.828351 # mass ratio 0.89:(0.5+0.20)
Dec -7.655829 #
Distance 16.390
}
19849 "Keid A:OMI2 Eri A:40 Eri A:Gliese 166 A"
{
RA 63.817917
Dec -7.652778
Distance 16.390
SpectralType "K1V"
AppMag 4.43
}
Barycenter "Keid B-C:OMI2 Eri B-C:40 Eri B-C:Gliese 166 B-C"
{
RA 63.841667
Dec -7.659722
Distance 16.390
}
"Keid B:OMI2 Eri B:40 Eri B:Gliese 166 B"
{
OrbitBarycenter "Keid B-C"
SpectralType "DA4"
AppMag 9.52
EllipticalOrbit {
Period 252.1
SemiMajorAxis 9.97 # mass ratio 0.5:0.2
Eccentricity 0.41
Inclination 84.4
AscendingNode 215.2
ArgOfPericenter 90.4
MeanAnomaly 214.77
}
}
"Keid C:OMI2 Eri C:40 Eri C:DY Eri:Gliese 166 C"
{
OrbitBarycenter "Keid B-C"
SpectralType "M4.5V"
AppMag 11.19
EllipticalOrbit {
Period 252.1
SemiMajorAxis 24.92 # mass ratio 0.5:0.2
Eccentricity 0.41
Inclination 84.4
AscendingNode 215.2
ArgOfPericenter 270.4
MeanAnomaly 214.77
}
}
112460 # EV Lac
{
RA 341.702083
Dec 44.330833
Distance 16.470
SpectralType "M3.5V"
AppMag 10.06
}
Barycenter "70 Oph:Struve 2272:Gliese 702"
{
RA 271.363750
Dec 2.500000
Distance 16.644
}
88601 "70 Oph A:Struve 2272 A:Gliese 702 A"
{
OrbitBarycenter "70 Oph"
SpectralType "K0V"
AppMag 4.20
EllipticalOrbit {
Period 88.38
SemiMajorAxis 10.04 # mass ratio 0.92:0.70
Eccentricity 0.4992
Inclination 114.9
AscendingNode 330.8
ArgOfPericenter 341.6
MeanAnomaly 63.9
}
}
"70 Oph B:Struve 2272 B:Gliese 702 B"
{
OrbitBarycenter "70 Oph"
SpectralType "K5V"
AppMag 6.05
EllipticalOrbit {
Period 88.38
SemiMajorAxis 13.20 # mass ratio 0.92:0.70
Eccentricity 0.4992
Inclination 114.9
AscendingNode 330.8
ArgOfPericenter 161.6
MeanAnomaly 63.9
}
}
97649 # Altair
{
RA 297.695833
Dec 8.868333
Distance 16.729
SpectralType "A7IV"
AppMag 0.77
RotationPeriod 10.4
SemiAxes [ 1 0.88 1 ] # equatorial radius 14% greater than polar
}
Barycenter "GJ 1116" # orbit of A & B unknown
{
RA 134.562083 # mass ratio 0.11:0.10
Dec 19.762724 #
Distance 17.059
}
"GJ 1116 A:EI Cnc"
{
RA 134.562083
Dec 19.761944
Distance 17.059
SpectralType "M5.5V"
AppMag 14.06
}
"GJ 1116 B:LP 426-40"
{
RA 134.562083
Dec 19.763611
Distance 17.059
SpectralType "M5.5V"
AppMag 14.92
}
"Giclas 99-49:GJ 3379"
{
RA 90.015000
Dec 2.705556
Distance 17.083
SpectralType "M3.5V"
AppMag 11.31
}
"LP 656-38:RECONS 3:GJ 3323"
{
RA 75.487500
Dec -6.946389
Distance 17.357
SpectralType "M3.5V"
AppMag 12.22
}
57544 # Gliese 445
{
RA 176.922500
Dec 78.691111
Distance 17.551
SpectralType "M3.5V"
AppMag 10.79
}
67155 # Lalande 25372
{
RA 206.432500
Dec 14.891389
Distance 17.706
SpectralType "M1.5V"
AppMag 8.46
}
103039 # LP 816-60
{
RA 313.137500
Dec -16.974722
Distance 17.906
SpectralType "M"
AppMag 11.41
}
Barycenter "Stein 2051:Gliese 169.1" # orbit of A & B unknown
{
RA 67.796397 # mass ratio 0.224:0.50
Dec 58.977167 #
Distance 18.057
}
21088 "Stein 2051 A:Gliese 169.1 A"
{
RA 67.799375
Dec 58.977167
Distance 18.057
SpectralType "M4V"
AppMag 11.04
}
"Stein 2051 B:Gliese 169.1 B"
{
RA 67.795063
Dec 58.977167
Distance 18.057
SpectralType "DC5"
AppMag 12.44
}
33226 # Wolf 294
{
RA 103.704167
Dec 33.268056
Distance 18.163
SpectralType "M3.0V"
AppMag 10.02
}
"2MASS 1835+3259"
{
RA 278.907917
Dec 32.998333
Distance 18.480
SpectralType "M8.5V"
AppMag 18.27
}
25878 # Wolf 1453
{
RA 82.864167
Dec -3.677222
Distance 18.620
SpectralType "M1.5V"
AppMag 7.95
}
"2MASS 0415-0935"
{
RA 63.83125
Dec -9.585
Distance 18.709
SpectralType "T8.5V"
AbsMag 38 # estimate
}
96100 # Sig Dra
{
RA 293.090000
Dec 69.661111
Distance 18.789
SpectralType "K0V"
AppMag 4.68
}
Barycenter "Luyten 668-21:LPM 230:Gliese 229" # orbit of A & B unknown
{
RA 92.644265 # mass ratio 0.556:0.05
Dec -21.864482 #
Distance 18.835
}
29295 "Luyten 668-21 A:LPM 230 A:Gliese 229 A"
{
RA 92.644231
Dec -21.864643
Distance 18.835
SpectralType "M1.0V"
AppMag 8.12
}
"Luyten 668-21 B:LPM 230 B:Gliese 229 B"
{
RA 92.644643
Dec -21.862692
Distance 18.835
SpectralType "T6.5V"
AbsMag 33 # very approx
}
86990 # Luyten 205-128
{
RA 266.642500
Dec -57.319167
Distance 18.997
SpectralType "M4.0V"
AppMag 10.75
}
Barycenter "Ross 652:Wolf 1055:Gliese 752" # orbit of A & B unknown
{
RA 289.232026 # mass ratio 0.494:0.073
Dec 5.166493 #
Distance 19.073
}
94761 "Ross 652 A:Wolf 1055 A:V1428 Aql:Gliese 752 A"
{
RA 289.230417
Dec 5.1688889
Distance 19.073
SpectralType "M3.5V"
AppMag 9.11
}
"Ross 652 B:Wolf 1055 B:Van Biesbroek's Star:VB 10:V1298 Aql:Gliese 752 B"
{
RA 289.242917
Dec 5.150278
Distance 19.073
SpectralType "M8.0V"
AppMag 17.50
}
26857 # Ross 47
{
RA 85.538750
Dec 12.489444
Distance 19.144
SpectralType "M4.0V"
AppMag 11.51
}
Barycenter "33 Lib:Gliese 570"
{
RA 224.363278 # mass ratio 0.76:(0.55+0.35)
Dec -21.413296 #
Distance 19.203
}
73184 "33 Lib A:Gliese 570 A" # fully specified orientation
{
OrbitBarycenter "33 Lib"
SpectralType "K5V"
AppMag 5.75
EllipticalOrbit {
Period 2130
SemiMajorAxis 103.23 # mass ratio 0.76:(0.55+0.35)
Eccentricity 0.2
Inclination 142.62
AscendingNode 191.56
ArgOfPericenter 129.2
MeanAnomaly 52.6
}
}
Barycenter "33 Lib B-C:Gliese 570 B-C" # fully specified orientation
{
OrbitBarycenter "33 Lib"
EllipticalOrbit {
Period 2130
SemiMajorAxis 87.17 # mass ratio 0.76:(0.55+0.35)
Eccentricity 0.2
Inclination 142.62
AscendingNode 191.56
ArgOfPericenter 309.2
MeanAnomaly 52.6
}
}
73182 "33 Lib B:Gliese 570 B"
{
OrbitBarycenter "33 Lib B-C"
SpectralType "M1V"
AppMag 8.28
EllipticalOrbit {
Period 0.84570
SemiMajorAxis 0.35 # mass ratio 0.55:0.35
Eccentricity 0.7559
Inclination 90.7
AscendingNode 30.5
ArgOfPericenter 221.92
MeanAnomaly 45.19
}
}
"33 Lib C:Gliese 570 C"
{
OrbitBarycenter "33 Lib B-C"
SpectralType "M3V"
AppMag 10.05
EllipticalOrbit {
Period 0.84570
SemiMajorAxis 0.54 # mass ratio 0.55:0.35
Eccentricity 0.7559
Inclination 90.7
AscendingNode 30.5
ArgOfPericenter 41.92
MeanAnomaly 45.19
}
}
"33 Lib D:Gliese 570 D"
{
RA 224.312500
Dec -21.363889
Distance 19.203
SpectralType "T8V"
AbsMag 38 # very approx
}
"Luyten 347-14:Gliese 754"
{
RA 290.200833
Dec -45.558889
Distance 19.296
SpectralType "M4.5V"
AppMag 12.23
}
117473 # Gliese 908
{
RA 357.302083
Dec 2.401111
Distance 19.356
SpectralType "M1.0V"
AppMag 8.99
}
Barycenter "Achird:ETA Cas:24 Cas:Gliese 34"
{
RA 12.27625
Dec 57.815278
Distance 19.371
}
3821 "Achird A:ETA Cas A:24 Cas A:Gliese 34 A"
{
OrbitBarycenter "Achird"
SpectralType "G3V"
AppMag 3.45
EllipticalOrbit {
Period 480
SemiMajorAxis 24.99 # mass ratio 1.11:0.60
Eccentricity 0.497
Inclination 152.19
AscendingNode 6.96
ArgOfPericenter 179.63
MeanAnomaly 82.80
}
}
"Achird B:ETA Cas B:24 Cas B:Gliese 34 B"
{
OrbitBarycenter "Achird"
SpectralType "K7.0V"
AppMag 7.51
EllipticalOrbit {
Period 480
SemiMajorAxis 46.24 # mass ratio 1.11:0.60
Eccentricity 0.497
Inclination 152.19
AscendingNode 6.96
ArgOfPericenter 359.63
MeanAnomaly 82.80
}
}
76074 # Gliese 588
{
RA 233.053750
Dec -41.275556
Distance 19.373
SpectralType "M3.0V"
AppMag 9.31
}
Barycenter "Luyten 722-22:GJ 1005"
{
RA 3.867083
Dec -16.133889
Distance 19.408
}
1242 "Luyten 722-22 A:GJ 1005 A"
{
OrbitBarycenter "Luyten 722-22"
SpectralType "M4.0V"
AppMag 11.58
EllipticalOrbit {
Period 4.566
SemiMajorAxis 0.62 # mass ratio 0.18:0.11
Eccentricity 0.364
Inclination 72.3
AscendingNode 85.2
ArgOfPericenter 169.4
MeanAnomaly 5.4
}
}
"Luyten 722-22 B:GJ 1005 B"
{
OrbitBarycenter "Luyten 722-22"
SpectralType "M7V"
AppMag 14.33
EllipticalOrbit {
Period 4.566
SemiMajorAxis 1.01 # mass ratio 0.18:0.11
Eccentricity 0.364
Inclination 72.3
AscendingNode 85.2
ArgOfPericenter 349.4
MeanAnomaly 5.4
}
}
37766 # Ross 882
{
RA 116.167500
Dec 3.552500
Distance 19.468
SpectralType "M4.0V"
AppMag 11.19
}
Barycenter "36 Oph:Gliese 663" # orbit of (AB) & C unknown
{
RA 258.901180 # mass ratio (0.85+0.85):0.7
Dec -26.586250 #
Distance 19.471
}
Barycenter "36 Oph A-B:Gliese 663 A-B"
{
RA 258.837500
Dec -26.602778
Distance 19.471
}
84405 "36 Oph A:Gliese 663 A"
{
OrbitBarycenter "36 Oph A-B"
SpectralType "K1V"
AppMag 5.07
EllipticalOrbit {
Period 470.9
SemiMajorAxis 38.8 # mass ratio 0.85:0.85
Eccentricity 0.916
Inclination 13.35
AscendingNode 348.86
ArgOfPericenter 271.0
MeanAnomaly 246.3
}
}
"36 Oph B:Gliese 663 B"
{
OrbitBarycenter "36 Oph A-B"
SpectralType "K1V"
AppMag 5.08
EllipticalOrbit {
Period 470.9
SemiMajorAxis 38.8 # mass ratio 0.85:0.85
Eccentricity 0.916
Inclination 13.35
AscendingNode 348.86
ArgOfPericenter 91.0
MeanAnomaly 246.3
}
}
84478 # 36 Oph C
{
RA 259.055833
Dec -26.546111
Distance 19.471
SpectralType "K5V"
AppMag 6.33
}
Barycenter "Gliese 783:CD-36 13940:J Herschel 5173:HJ 5173" # orbit of A & B unknown
{
RA 302.798770 # mass ratio 0.82:0.20
Dec -36.097603 #
Distance 19.728
}
99461 "Gliese 783 A:CD-36 13940 A:J Herschel 5173 A:HJ 5173 A"
{
RA 302.79837
Dec -36.097385
Distance 19.728
SpectralType "K3V"
AppMag 5.32
}
"Gliese 783 B:CD-36 13940 B:J Herschel 5173 B:HJ 5173 B"
{
RA 302.8004
Dec -36.09849
Distance 19.728
SpectralType "M4.0V"
AppMag 11.50
}
15510 # 82 Eri
{
RA 49.981667
Dec -43.069722
Distance 19.766
SpectralType "G5V"
AppMag 4.26
}
"LP 44-113:GJ 1221"
{
RA 267.027917
Dec 70.874722
Distance 19.804
SpectralType "DXP9"
AppMag 14.12
}
99240 # Del Pav
{
RA 302.181667
Dec -66.181944
Distance 19.915
SpectralType "G8IV"
AppMag 3.56
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
Barycenter "Ross 986:Gliese 268"
{
RA 107.5075
Dec 38.529444
Distance 20.019
}
34603 "Ross 986 A:QY Aur:Gliese 268 A"
{
OrbitBarycenter "Ross 986"
SpectralType "M5V"
AppMag 12.05
EllipticalOrbit {
Period 0.02856 # 10.43dy
SemiMajorAxis 0.03 # mass ratio 0.17:0.16
ArgOfPericenter 180
}
}
"Ross 986 B:Gliese 268 B"
{
OrbitBarycenter "Ross 986"
SpectralType "M6V"
AppMag 12.45
EllipticalOrbit {
Period 0.02856 # 10.43dy
SemiMajorAxis 0.03 # mass ratio 0.17:0.16
}
}
71253 # Gliese 555
{
RA 218.570000
Dec -12.519444
Distance 20.027
SpectralType "M3.5V"
AppMag 11.31
}
"2MASS 0937+2931"
{
RA 144.391667
Dec 29.516667
Distance 20.030
SpectralType "T6.0V"
AbsMag 33 # estimate
}
Barycenter "Struve 1321:Gliese 338"
{
RA 138.598959
Dec 52.775278
Distance 20.117
}
45343 "Struve 1321 A:Gliese 338 A"
{
OrbitBarycenter "Struve 1321"
SpectralType "K7V"
AppMag 7.62
EllipticalOrbit {
Period 975
SemiMajorAxis 51.58 # mass ratio 06:0.6
Eccentricity 0.28
Inclination 113
AscendingNode 13
ArgOfPericenter 276
MeanAnomaly 264
}
}
120005 "Struve 1321 B:Gliese 338 B"
{
OrbitBarycenter "Struve 1321"
SpectralType "K7V"
AppMag 7.71
EllipticalOrbit {
Period 975
SemiMajorAxis 51.58 # mass ratio 06:0.6
Eccentricity 0.28
Inclination 113
AscendingNode 13
ArgOfPericenter 96
MeanAnomaly 264
}
}
99701 # Gliese 784
{
RA 303.472500
Dec -45.163889
Distance 20.236
SpectralType "M0.0V"
AppMag 7.96
}
74995 # Wolf 562
{
RA 229.861667
Dec -7.722222
Distance 20.476
SpectralType "M2.5V"
AppMag 10.56
}
Barycenter "Gliese 896"
{
RA 352.967500
Dec 19.937222
Distance 20.680
}
Barycenter "Gliese 896 A"
{
OrbitBarycenter "Gliese 896"
EllipticalOrbit {
Period 359
SemiMajorAxis 15.12 # 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"
{
OrbitBarycenter "Gliese 896"
EllipticalOrbit {
Period 359
SemiMajorAxis 28.44 # 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
}
}
116132 "Gliese 896 Aa:EQ Peg"
{
OrbitBarycenter "Gliese 896 A"
SpectralType "M3.5V"
AppMag 10.26
EllipticalOrbit {
Period 3.5 # "of the order of a few years"
SemiMajorAxis 0.5 # mass ratio 0.34:0.13
ArgOfPericenter 180
Inclination 20 # to match orbital plane
AscendingNode 140 # of system
}
}
"Gliese 896 Ab"
{
OrbitBarycenter "Gliese 896 A"
SpectralType "M7V" # from apparent magnitude
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
AscendingNode 140 # of system
}
}
"Gliese 896 Ba"
{
OrbitBarycenter "Gliese 896 B"
SpectralType "M4.5V"
AppMag 12.40
EllipticalOrbit {
Period 4.1 # "of the order of a few years"
SemiMajorAxis 0.6 # mass ratio 0.16:0.09
ArgOfPericenter 180
Inclination 20 # to match orbital plane
AscendingNode 140 # of system
}
}
"Gliese 896 Bb"
{
OrbitBarycenter "Gliese 896 B"
SpectralType "M9V" # from apparent magnitude
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
AscendingNode 140 # of system
}
}
"LHS 2090:LP 368-128"
{
RA 135.098333
Dec 21.834722
Distance 20.792
SpectralType "M6.0V"
AppMag 16.1
}
"LHS 337:Luyten 471-42:GJ 3737"
{
RA 189.704583
Dec -38.381667
Distance 20.844
SpectralType "M4.0V"
AppMag 12.74
}
Barycenter "Gliese 661:BD+45 2505"
{
RA 258.032917
Dec 45.665833
Distance 20.865
}
84140 "Gliese 661 A:BD+45 2505 A"
{
OrbitBarycenter "Gliese 661"
SpectralType "M3V"
AppMag 9.93
EllipticalOrbit {
Period 12.9512
SemiMajorAxis 2.23 # mass ratio 0.39:0.33
Eccentricity 0.743
Inclination 25.8
AscendingNode 59.0
ArgOfPericenter 144.9
MeanAnomaly 249.3
}
}
"Gliese 661 B:BD+45 2505 B"
{
OrbitBarycenter "Gliese 661"
SpectralType "M4V"
AppMag 10.35
EllipticalOrbit {
Period 12.9512
SemiMajorAxis 2.64 # mass ratio 0.39:0.33
Eccentricity 0.743
Inclination 25.8
AscendingNode 59.0
ArgOfPericenter 324.9
MeanAnomaly 249.3
}
}
"LP 914-54:GJ 3877"
{
RA 224.160417
Dec -28.164167
Distance 20.868
SpectralType "M7.0V"
AppMag 17.05
}
"Giclas 180-60:GJ 3959"
{
RA 247.826667
Dec 40.865000
Distance 20.908
SpectralType "M"
AppMag 14.79
}
"LP 658-2:Gliese 223.2"
{
RA 88.790417
Dec -4.171389
Distance 21.043
SpectralType "DZ9"
AppMag 14.45
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
# Mazeh, T. et al. (2001) "Studies of multiple stellar systems - IV. The
# triple-lined spectroscopic system Gliese 644" MNRAS, 325, 343.
# (http://arxiv.org/PS_cache/astro-ph/pdf/0102/0102451.pdf)
Barycenter "Wolf 630:Gliese 644" # orbit of (AB) & C unknown
{
RA 253.872065 # mass ratio (0.41+0.34+0.30):0.08
Dec -8.340499 #
Distance 21.047
}
Barycenter "Wolf 630 A-B:Gliese 644 A-B"
{
RA 253.870000
Dec -8.336389
Distance 21.047
}
82817 "Wolf 630 A:Gliese 644 A:V1054 Oph"
{
OrbitBarycenter "Wolf 630 A-B"
SpectralType "M2.5V"
AppMag 9.72
EllipticalOrbit { # fully specified orientation
Period 1.71727
SemiMajorAxis 0.86 # mass ratio 0.45:(0.34+0.30)
Eccentricity 0.043
Inclination 69.7
AscendingNode 0.1
ArgOfPericenter 224.0
MeanAnomaly 325.6
}
}
Barycenter "Wolf 630 B:Gliese 644 B"
{
OrbitBarycenter "Wolf 630 A-B"
EllipticalOrbit { # fully specified orientation
Period 1.71727
SemiMajorAxis 0.60 # mass ratio 0.45:(0.34+0.30)
Eccentricity 0.0433
Inclination 69.7
AscendingNode 0.1
ArgOfPericenter 44.0
MeanAnomaly 325.6
}
}
"Wolf 630 Ba:Gliese 644 Ba"
{
OrbitBarycenter "Wolf 630 B"
SpectralType "M3V"
AppMag 10.54
EllipticalOrbit {
Period 0.008119 # 2.965522 dy
SemiMajorAxis 0.017 # mass ratio 0.34:0.30
Eccentricity 0.026
Inclination 70 # orbit of Bab said to be
AscendingNode 0 # in same plane as AB
}
}
"Wolf 630 Bb:Gliese 644 Bb"
{
OrbitBarycenter "Wolf 630 B"
SpectralType "M4V"
AppMag 10.63
EllipticalOrbit {
Period 0.008119 # 2.965522 dy
SemiMajorAxis 0.018 # mass ratio 0.34:0.30
Eccentricity 0.026
Inclination 70 # orbit of Bab said to be
AscendingNode 0 # in same plane as AB
ArgOfPericenter 180
}
}
"Wolf 630 C:Gliese 644 C:VB 8"
{
RA 253.899167
Dec -8.394444
Distance 21.047
SpectralType "M7V"
AppMag 16.80
}
82809 "Wolf 629:Wolf 630 D:Gliese 643"
{
RA 253.855000
Dec -8.322500
Distance 21.047
SpectralType "M3.5V"
AppMag 11.74
}
114622 # Gliese 892
{
RA 348.320833
Dec 57.168333
Distance 21.261
SpectralType "K3V"
AppMag 5.56
}
"LHS 271:Luyten 100-115:GJ 1128"
{
RA 145.693333
Dec -68.885000
Distance 21.311
SpectralType "M4.5V"
AppMag 12.78
}
"Luyten 1190-34:GL Vir:GJ 1156"
{
RA 184.751250
Dec 11.125278
Distance 21.332
SpectralType "M5.0V"
AppMag 13.80
}
80459 # Gliese 625
{
RA 246.352500
Dec 54.304167
Distance 21.488
SpectralType "M1.5V"
AppMag 10.10
}
53767 # Ross 104
{
RA 165.017917
Dec 22.833056
Distance 21.721
SpectralType "M2.5V"
AppMag 10.02
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
Barycenter "Ross 775:Gliese 829"
{
RA 322.403333
Dec 17.643333
Distance 22.001
}
106106 "Ross 775 A:Gliese 829 A"
{
OrbitBarycenter "Ross 775"
SpectralType "M3.5V"
AppMag 11.06
EllipticalOrbit {
Period 0.146 # 53.2dys
SemiMajorAxis 0.11 # estimated from mass ratio 0.26:0.26
ArgOfPericenter 180
}
}
"Ross 775 B:Gliese 829 B"
{
OrbitBarycenter "Ross 775"
SpectralType "M3.5V"
AppMag 11.06
EllipticalOrbit {
Period 0.146 # 53.2dys
SemiMajorAxis 0.11 # estimated from mass ratio 0.26:0.26
}
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
Barycenter "Giclas 41-14:GJ 3522"
{
RA 134.734583
Dec 8.473889
Distance 22.089
}
Barycenter "Giclas 41-14 A:GJ 3522 A"
{
OrbitBarycenter "Giclas 41-14"
EllipticalOrbit {
Period 11.8 # estimate
SemiMajorAxis 1.3 # from AB separation and mass ratio (0.19+0.17):0.17
}
}
"Giclas 41-14 Aa:GJ 3522 Aa"
{
OrbitBarycenter "Giclas 41-14 A"
SpectralType "M5.5V" # from estimated mass
AppMag 11.9
EllipticalOrbit {
Period 0.021 # 7.6dys
SemiMajorAxis 0.0255 # estimated from mass ratio 0.19:0.17
}
}
"Giclas 41-14 Ab:GJ 3522 Ab"
{
OrbitBarycenter "Giclas 41-14 A"
SpectralType "M6V" # from estimated mass
AppMag 12.1
EllipticalOrbit {
Period 0.021 # 7.6dys
SemiMajorAxis 0.0285 # estimated from mass ratio 0.19:0.17
ArgOfPericenter 180
}
}
"Giclas 41-14 B:GJ 3522 B"
{
OrbitBarycenter "Giclas 41-14"
SpectralType "M6V" # from mass
AppMag 12.3
EllipticalOrbit {
Period 11.8 # estimate
SemiMajorAxis 2.9 # from AB separation and mass ratio (0.19+0.17):0.17
ArgOfPericenter 180
}
}
Barycenter "XI Boo:37 Boo:Gliese 566"
{
RA 222.847500
Dec 19.100556
Distance 22.102
}
72659 "XI Boo A:37 Boo A:Gliese 566 A"
{
OrbitBarycenter "XI Boo"
SpectralType "G8V"
AppMag 4.70
EllipticalOrbit {
Period 151.505
SemiMajorAxis 13.93 # mass ratio 0.94:0.67
Eccentricity 0.512
Inclination 82
AscendingNode 270
ArgOfPericenter 159
MeanAnomaly 215
}
}
"XI Boo B:37 Boo B:Gliese 566 B"
{
OrbitBarycenter "XI Boo"
SpectralType "K4V"
AppMag 6.97
EllipticalOrbit {
Period 151.505
SemiMajorAxis 19.55 # mass ratio 0.94:0.67
Eccentricity 0.512
Inclination 82
AscendingNode 270
ArgOfPericenter 339
MeanAnomaly 215
}
}
53020 # Wolf 358
{
RA 162.717083
Dec 6.808056
Distance 22.187
SpectralType "M4.0V"
AppMag 11.67
}
"Ross 619:Gliese 299"
{
RA 122.989583
Dec 8.774444
Distance 22.294
SpectralType "M4.0V"
AppMag 12.82
}
113296 # Ross 671
{
RA 344.145000
Dec 16.553333
Distance 22.372
SpectralType "M1.5V"
AppMag 8.66
}
14101 "LP 771-95 A:Luyten 730-18:GJ 3192 A:RECONS 4"
{
RA 45.46411209
Dec -16.593372777
Distance 22.544
SpectralType "M3V"
AppMag 11.22
}
"LP 771-96:LP 771-95 B:GJ 3193"
{
RA 45.46547306
Dec -16.59479288
Distance 22.544
SpectralType "M3V"
AppMag 11.77
}
"LP 771-95 C"
{
RA 45.46432292
Dec -16.59359277
Distance 22.544
SpectralType "M5V"
AppMag 12.63
}
103096 # Gliese 809
{
RA 313.332500
Dec 62.154444
Distance 23.037
SpectralType "M0.0V"
AppMag 8.56
}
"Luyten 97-12:Gliese 293"
{
RA 118.311250
Dec -67.791944
Distance 23.099
SpectralType "DQ9"
AppMag 14.08
}
"GJ 1286"
{
RA 353.794583
Dec -2.390278
Distance 23.584
SpectralType "M5.5V"
AppMag 14.67
}
Barycenter "Gliese 667:CD-34 11626" # orbit of (AB) & C unknown
{
RA 259.742645 # mass ratio (0.75+0.65):0.35
Dec -34.991008 #
Distance 23.597
}
Barycenter "Gliese 667 A-B:CD-34 11626 A-B"
{
RA 259.741667
Dec -34.990000
Distance 23.597
}
84709 "Gliese 667 A:CD-34 11626 A"
{
OrbitBarycenter "Gliese 667 A-B"
SpectralType "K4V"
AppMag 5.90
EllipticalOrbit {
Period 42.15
SemiMajorAxis 6.08 # mass ratio 0.75:0.65
Eccentricity 0.58
Inclination 137
AscendingNode 305
ArgOfPericenter 184
MeanAnomaly 206
}
}
"Gliese 667 B:CD-34 11626 B"
{
OrbitBarycenter "Gliese 667 A-B"
SpectralType "K5V"
AppMag 5.90
EllipticalOrbit {
Period 42.15
SemiMajorAxis 7.01 # mass ratio 0.75:0.65
Eccentricity 0.58
Inclination 137
AscendingNode 305
ArgOfPericenter 4
MeanAnomaly 206
}
}
"Gliese 667 C:CD-34 11626 C"
{
RA 259.746250
Dec -34.994722
Distance 23.597
SpectralType "M1.5V"
AppMag 10.26
}
51317 # Ross 446
{
RA 157.231667
Dec 0.840833
Distance 23.700
SpectralType "M2.0V"
AppMag 9.63
}
"LP 71-165:GJ 4083"
{
RA 274.740417
Dec 66.192222
Distance 23.721
SpectralType "M4.5V"
AppMag 13.49
}
Barycenter "268 Cet:Gliese 105" # orbit of A & B unknown
{
RA 39.028451 # mass ratio (0.81+0.08):0.21
Dec 6.883803 #
Distance 23.811
}
Barycenter "268 Cet A:Gliese 105 A"
{
RA 39.020417
Dec 6.886667
Distance 23.811
}
12114 "268 Cet Aa:Gliese 105 Aa"
{
OrbitBarycenter "268 Cet A"
SpectralType "K3V"
AppMag 5.81
EllipticalOrbit {
Period 60
SemiMajorAxis 1.3 # mass ratio 0.81:0.08
Eccentricity 0.75
Inclination 82 # "nearly face-on orbit"
AscendingNode 310 #
}
}
"268 Cet Ab:Gliese 105 Ab"
{
OrbitBarycenter "268 Cet A"
SpectralType "M7.5V"
AppMag 16.90
EllipticalOrbit {
Period 60
SemiMajorAxis 13.7 # mass ratio 0.81:0.08
Eccentricity 0.75
Inclination 82 # "nearly face-on orbit"
AscendingNode 310 #
ArgOfPericenter 180
}
}
"268 Cet B:Gliese 105 B:BX Cet"
{
RA 39.062500
Dec 6.871667
Distance 23.811
SpectralType "M3.5V"
AppMag 11.66
}
"Luyten 788-34:GJ 4274"
{
RA 335.777500
Dec -17.606944
Distance 24.268
SpectralType "M4.5V"
AppMag 13.26
}
3765 # 96 Psc
{
RA 12.095833
Dec 5.280556
Distance 24.275
SpectralType "K1V"
AppMag 5.72
}
2021 # Bet Hyi
{
RA 6.437917
Dec -77.254167
Distance 24.366
SpectralType "G1IV"
AppMag 2.80
}
7981 # 107 Psc
{
RA 25.624167
Dec 20.268333
Distance 24.390
SpectralType "K1V"
AppMag 5.24
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
Barycenter "Giclas 203-47:GJ 3991"
{
RA 257.381250
Dec 43.681111
Distance 24.478
}
83945 "Giclas 203-47 A:GJ 3991 A"
{
OrbitBarycenter "Giclas 203-47"
SpectralType "M3.5V"
AppMag 11.80
EllipticalOrbit {
Period 0.04 # 15 days
SemiMajorAxis 0.6 # estimated from mass ratio 0.3:0.5
Eccentricity 0.07
ArgOfPericenter 180
}
}
"Giclas 203-47 B:GJ 3991 B"
{
OrbitBarycenter "Giclas 203-47"
SpectralType "D"
AbsMag 13.7 # for a 0.5-solar-mass white dwarf
EllipticalOrbit {
Period 0.04 # 15 days
SemiMajorAxis 0.4 # estimated from mass ratio 0.3:0.5
Eccentricity 0.07
}
}
"GJ 1224"
{
RA 271.887083
Dec -15.964167
Distance 24.598
SpectralType "M4.5V"
AppMag 13.61
}
# Drummond JD, Christou JC, Fugate RQ. Full adaptive optics images of
# ADS 9731 and mu Cassiopeiae: Orbits and masses. ApJ 1995; 450: 380-91
# http://cdsads.u-strasbg.fr//full/1995ApJ...450..380D/0000380.000.html
Barycenter "MU Cas:30 Cas:Gliese 53"
{
RA 17.068333
Dec 54.920278
Distance 24.603
}
5336 "MU Cas A:30 Cas A:Gliese 53 A"
{
OrbitBarycenter "MU Cas"
SpectralType "G5VI"
AppMag 5.17
EllipticalOrbit { # fully specified orientation
Period 21.753
SemiMajorAxis 1.437 # mass ratio 0.742:0.173
Eccentricity 0.561
Inclination 28.0
AscendingNode 334.7
ArgOfPericenter 135.0
MeanAnomaly 41.52
}
}
"MU Cas B:30 Cas B:Gliese 53 B"
{
OrbitBarycenter "MU Cas"
SpectralType "MVI"
AppMag 11.00
EllipticalOrbit { # fully specified orientation
Period 21.753
SemiMajorAxis 6.165 # mass ratio 0.742:0.173
Eccentricity 0.561
Inclination 28.0
AscendingNode 334.7
ArgOfPericenter 315.0
MeanAnomaly 41.52
}
}
65859 # Ross 490
{
RA 202.499167
Dec 10.376944
Distance 24.603
SpectralType "M1.0V"
AppMag 9.05
}
"Luyten 1813-21:GJ 3378"
{
RA 90.290417
Dec 59.598333
Distance 24.691
SpectralType "M3.5V"
AppMag 11.71
}
12781 # Ross 556
{
RA 41.064583
Dec 25.523333
Distance 24.879
SpectralType "M3.0V"
AppMag 10.55
}
113368 # Fomalhaut A
{
RA 344.412917
Dec -29.622222
Distance 24.978
SpectralType "A3V"
AppMag 1.15
}
113283 # Fomalhaut B
{
RA 344.100417
Dec -31.565556
Distance 24.978
SpectralType "K4V"
AppMag 6.46
}
61874 # Luyten 399-68
{
RA 190.192917
Dec -43.566667
Distance 24.990
SpectralType "M3.5V"
AppMag 12.24
}
85295 # Gliese 673<37>
{
RA 261.438333
Dec 2.111389
Distance 25.173
SpectralType "K7.0V"
AppMag 7.53
}
91262 # Vega<67>
{
RA 279.234583
Dec 38.783611
Distance 25.282
SpectralType "A0V"
AppMag 0.03
RotationPeriod 12.4
SemiAxes [ 1 0.81 1 ] # equatorial radius 23% greater than polar
Obliquity 28 # rotation pole points
EquatorAscendingNode 15 # towards solar system
}
Barycenter "Alula Australis:XI UMa:53 UMa:Gliese 423"
{
RA 169.54545
Dec 31.529134
Distance 27.294
}
Barycenter "Alula Australis A:XI UMa A:53 UMa A:Gliese 423 A"
{
OrbitBarycenter "Alula Australis"
EllipticalOrbit { # fully specified orientation
Period 59.878
SemiMajorAxis 9.30 # mass ratio (1.05+0.4):(1.05+0.08)
Eccentricity 0.398
Inclination 14.09
AscendingNode 192.13
ArgOfPericenter 9.69
MeanAnomaly 29.62
}
}
Barycenter "Alula Australis B:XI UMa B:53 UMa B:Gliese 423 B"
{
OrbitBarycenter "Alula Australis"
EllipticalOrbit { # fully specified orientation
Period 59.878
SemiMajorAxis 11.93 # mass ratio (1.05+0.4):(1.05+0.08)
Eccentricity 0.398
Inclination 14.09
AscendingNode 192.13
ArgOfPericenter 189.69
MeanAnomaly 29.62
}
}
55203 "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 1.832
SemiMajorAxis 0.13 # mass ratio 1.05:0.4
Eccentricity 0.53
Inclination 137.0
AscendingNode 298.1
ArgOfPericenter 187.9
MeanAnomaly 133.8
}
}
"Alula Australis Ab:XI UMa Ab:53 UMa Ab:Gliese 423 Ab"
{
OrbitBarycenter "Alula Australis A"
SpectralType "M2V" # from estimated mass of 0.4
AbsMag 9.3 # for estimated spectral class
EllipticalOrbit { # fully specified orientation
Period 1.832
SemiMajorAxis 0.35 # mass ratio 1.05:0.4
Eccentricity 0.53
Inclination 137.0
AscendingNode 298.1
ArgOfPericenter 7.9
MeanAnomaly 133.8
}
}
"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 # 3.98dy
SemiMajorAxis 0.004 # mass ratio 1.05:0.08
Eccentricity 0
ArgOfPericenter 180
}
}
"Alula Australis Bb:XI UMa Bb:53 UMa Bb:Gliese 423 Bb"
{
OrbitBarycenter "Alula Australis B"
SpectralType "L" # brown dwarf
AbsMag 21 # for approximate radius in Celestia
EllipticalOrbit {
Period 0.0109 # 3.981dy
SemiMajorAxis 0.056 # mass ratio 1.05:0.08
Eccentricity 0
}
}
# Washington Multiplicity Catalog
# (http://ad.usno.navy.mil/wds/wmc/wmc_post191.html)
"Alula Australis C:XI UMa C:53 UMa C:Gliese 423 C"
{
RA 169.53272
Dec 31.539614
Distance 27.294
SpectralType "M7V" # from luminosity
AppMag 15
}
#======================================================
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
# Newer RECONS parallax places system well beyond 25ly
Barycenter "GJ 2130" # orbit of A & B unknown
{
RA 266.556484 # mass ratio 0.3:(0.19+0.15)
Dec -32.102873 #
Distance 48.536
}
86961 # GJ 2130 A
{
RA 266.552500
Dec -32.103611
Distance 48.536
SpectralType "M2V"
AppMag 10.49
}
86963 "GJ 2130 Ba:CD-32 13298 A"
{
RA 266.560000
Dec -32.102222
Distance 48.536
SpectralType "M5.5V" # from apparent magnitude
AppMag 11.75
}
"GJ 2130 Bb:CD-32 13298 B" #true separation of Bab not known
{
RA 266.5603
Dec -32.102222
Distance 48.536
SpectralType "M6.5V" # from apparent magnitude
AppMag 12.75
}
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