New data for Nix & Hydra, from Tholen et al.; Erriapo renamed Erriapus
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# Additional moons of the planets.
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# Additional moons of the planets.
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# Version 1.33 (2007 Sep 25)
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# Version 1.34 (2008 Jan 03)
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# This file supplements the solar system moons defined in
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# This file supplements the solar system moons defined in
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# the Celestia distribution files solarsys.ssc and minormoons.ssc.
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# the Celestia distribution files solarsys.ssc and minormoons.ssc.
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@ -1016,7 +1016,7 @@
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Albedo 0.06
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Albedo 0.06
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}
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}
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"Erriapo" "Sol/Saturn"
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"Erriapus" "Sol/Saturn"
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{
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{
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Texture "asteroid.jpg"
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Texture "asteroid.jpg"
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Mesh "asteroid.cms"
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Mesh "asteroid.cms"
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@ -2081,17 +2081,19 @@
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# Additional moons of Pluto
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# Additional moons of Pluto
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# "Orbits and photometry of Pluto's satellites: Charon, S/2005 P1
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# "Orbits and photometry of Pluto's satellites: Charon, S/2005 P1
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# and S/2005 P2" Buie et al. http://arxiv.org/abs/astro-ph/0512491
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# and S/2005 P2" Buie et al.
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# http://arxiv.org/abs/astro-ph/0512491
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# "Masses of Nix and Hydra" Tholen et al.
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# http://arxiv.org/ftp/arxiv/papers/0712/0712.1261.pdf
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"Hydra" "Sol/Pluto"
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"Hydra" "Sol/Pluto"
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{
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{
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Texture "asteroid.jpg" # "spectrally neutral"
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Texture "asteroid.jpg" # "spectrally neutral"
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Mesh "asteroid.cms"
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Mesh "asteroid.cms"
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Radius 22 # for 35% albedo
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Radius 36
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InfoURL "http://www.boulder.swri.edu/plutonews/"
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InfoURL "http://www.boulder.swri.edu/plutonews/"
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# Elements from Buie et al. referenced to J2000 Earth equator
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OrbitFrame {
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OrbitFrame {
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EquatorJ2000 { Center "Sol/Pluto-Charon" }
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EquatorJ2000 { Center "Sol/Pluto-Charon" }
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}
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}
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@ -2099,16 +2101,16 @@
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EllipticalOrbit
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EllipticalOrbit
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{
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{
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Epoch 2452600.5 # 2002 Nov 22
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Epoch 2452600.5 # 2002 Nov 22
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Period 38.2065
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Period 38.734 # mean
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SemiMajorAxis 64780
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SemiMajorAxis 65082 # mean
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Eccentricity 0.0052
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Eccentricity 0.00870 # mean
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Inclination 96.36
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Inclination 96.362
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AscendingNode 223.173
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AscendingNode 223.077
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LongOfPericenter 200.1
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ArgOfPericenter 45.4
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MeanLongitude 322.71
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MeanLongitude 322.4
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}
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}
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Albedo 0.35 # estimate, based on Charon
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Albedo 0.18
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}
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}
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"Nix" "Sol/Pluto"
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"Nix" "Sol/Pluto"
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# but not subsequently detected
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# but not subsequently detected
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BlendTexture true
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BlendTexture true
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Mesh "asteroid.cms"
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Mesh "asteroid.cms"
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Radius 22 # for 35% albedo
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Radius 44
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InfoURL "http://www.boulder.swri.edu/plutonews/"
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InfoURL "http://www.boulder.swri.edu/plutonews/"
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# Elements from Buie et al. referenced to J2000 Earth equator
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OrbitFrame {
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OrbitFrame {
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EquatorJ2000 { Center "Sol/Pluto-Charon" }
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EquatorJ2000 { Center "Sol/Pluto-Charon" }
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}
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}
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@ -2130,15 +2131,14 @@
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EllipticalOrbit
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EllipticalOrbit
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{
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{
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Epoch 2452600.5 # 2002 Nov 22
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Epoch 2452600.5 # 2002 Nov 22
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Period 24.8562
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Period 25.492 # mean
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SemiMajorAxis 48675
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SemiMajorAxis 49242 # mean
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Eccentricity 0.0023
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Eccentricity 0.01504 # mean
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Inclination 96.18
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Inclination 96.190
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AscendingNode 223.14
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AscendingNode 223.202
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LongOfPericenter 216
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ArgOfPericenter 244.3
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MeanLongitude 123.14
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MeanLongitude 122.7
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}
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}
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Albedo 0.35 # estimate, based on Charon
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Albedo 0.08
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}
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}
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