celestia-common 1.6.1+dfsg-3 / usr / share / celestia / data / outersys.ssc

# The largest Edgeworth-Kuiper belt objects

"136199 Eris:Eris:2003 UB313" "Sol" {
 
# Higher albedo and lower radius than first reported. 
# Data from HST results by Brown et al. ApJ 2006:
# http://www.gps.caltech.edu/~mbrown/papers/ps/xsize.pdf

	Class "dwarfplanet" 
	Texture "asteroid.jpg" 
	Radius  1200
	# no evidence of reddening

	InfoURL "http://www.gps.caltech.edu/~mbrown/planetlila/index.html"

	EllipticalOrbit {
		Epoch        2453600.5    # 2005 Aug 18 00:00UT
		Period           557.148 
		SemiMajorAxis     67.709       
		Eccentricity       0.4416 
		Inclination       44.177      
		AscendingNode     35.875 
		ArgOfPericenter  151.311      
		MeanAnomaly      197.538 
   	} 

	Albedo 0.86

	UniformRotation
	{
	Period     25.92   # Estimate from Icarus 2008. 198: 2; 459-64
	
	Inclination	79.8   # spin axis assumed to match
	AscendingNode	144    # orbit of Dysnomia
	}
}

"Dysnomia:136199 Eris I:Eris I:2005 (2003 UB313) 1" "Sol/Eris" {

	Class "moon" 
	Mesh	"asteroid.cms"
	Texture "asteroid.jpg" 
	Radius  100             # ~0.2% of Eris brightness

	InfoURL "http://www.gps.caltech.edu/~mbrown/planetlila/moon/"
	# Orbit from Brown ME, Schaller EL: Science 2007; 316: 1585

	OrbitFrame {
		EquatorJ2000 { Center "Sol/Eris" }
	}	

	EllipticalOrbit
	{
	Epoch		2453979.0    # 2006 Aug 31 12:00UT
	Period		15.772
	SemiMajorAxis	37430
	Inclination	61.3
	AscendingNode	139
	MeanAnomaly	328.6
	}
}

"13672 Makemake:Makemake:2005 FY9" "Sol" { 

	Class "dwarfplanet" 
	Texture "asteroid.jpg" 
	Radius  850              # estimate

	EllipticalOrbit {
		Epoch        2453600.5    # 2005 Aug 18 00:00UT
		Period           308.329 
		SemiMajorAxis     45.640       
		Eccentricity       0.1519 
		Inclination       28.998      
		AscendingNode     79.416 
		ArgOfPericenter  245.848      
		MeanAnomaly      213.919 
   	} 

	UniformRotation
	{
	Period     48.0   # guess
	}
}

"136108 Haumea:Haumea:2003 EL61" "Sol" { 

	Class "dwarfplanet" 
	Texture "asteroid.jpg" 
#	Dimensions below taken from Rabinowitz et al. Photometric observations
#	constraining the size, shape and albedo of 2003 EL62, a rapidly rotating,
#	Pluto-sized object in the Kuiper Belt.
#	http://arxiv.org/ftp/astro-ph/papers/0509/0509401.pdf

	SemiAxes [ 980 760 500 ] # estimate

	InfoURL "http://www.gps.caltech.edu/~mbrown/2003EL61/"

	EllipticalOrbit {
		Epoch        2453600.5    # 2005 Aug 18 00:00UT
		Period           285.312 
		SemiMajorAxis     43.339       
		Eccentricity       0.1888 
		Inclination       28.195      
		AscendingNode    121.895 
		ArgOfPericenter  239.512      
		MeanAnomaly      198.075 
   	} 

	UniformRotation
	{
	Period     3.9152

	Inclination	255   # spin axis assumed to match
	AscendingNode	25    # satellite orbits
	}
}

"Hi'iaka:136108 Haumea I:Haumea I:2005 (2003 EL61) 1" "Sol/2003 EL61" { 

	Class "moon" 
	Mesh	"asteroid.cms"
	Texture "asteroid.jpg" 
	Radius  150             # ~1% of system mass

	InfoURL "http://www.gps.caltech.edu/~mbrown/2003EL61/"
#	Orbit from Brown ME et al: http://www.gps.caltech.edu/%7Embrown/papers/ps/EL61.pdf

	BodyFrame {
		EclipticJ2000 { Center "Sol/2003 EL61" }
	}
	OrbitFrame {
		EclipticJ2000 { Center "Sol/2003 EL61" }
	}

	EllipticalOrbit {
		Period            49.12 
		SemiMajorAxis  49500       
		Eccentricity       0.050
		Inclination      234.8      
		AscendingNode     26.1 
		ArgOfPericenter  278.6      
		MeanAnomaly       16.71 
   	} 

	Obliquity		235  # to match orbit
	EquatorAscendingNode	25   #
}

"Namaka:136108 Haumea II:Haumea II:2005 (2003 EL61) 2" "Sol/2003 EL61" { 

	Class "moon" 
	Mesh	"asteroid.cms"
	Texture "asteroid.jpg" 
	Radius  90             # ~0.2% of system mass

	InfoURL "http://www.gps.caltech.edu/~mbrown/2003EL61/"

	BodyFrame {
		EclipticJ2000 { Center "Sol/2003 EL61" }
	}
	OrbitFrame {
		EclipticJ2000 { Center "Sol/2003 EL61" }
	}

	EllipticalOrbit {
		Period            34.1 
		SemiMajorAxis  39300       
		Inclination      275  # ~40 degrees to 2005 (2003 EL61) 1
		AscendingNode     25  #
   	} 

	Obliquity		275  # to match orbit
	EquatorAscendingNode	25   #
}

"90482 Orcus:Orcus:2004 DW" "Sol" { 

	Class "asteroid" 
	Texture "asteroid.jpg" 
	Color   [ 0.65 0.45 0.35 ]
	BlendTexture true
	Radius  800 

	InfoURL "http://www.gps.caltech.edu/~chad/2004dw/" 

	EllipticalOrbit {
		Period           245.976 
      		SemiMajorAxis     39.258 
		Eccentricity       0.2258 
		Inclination       20.539 
		AscendingNode    268.457 
		ArgOfPericenter   73.731 
		MeanAnomaly      150.066 
   	} 

	Albedo 0.09

	UniformRotation
	{
	Period     48.0   # guess
	}

}

"50000 Quaoar:Quaoar:2002 LM60" "Sol" {

	Class "asteroid"
	Texture "asteroid.jpg"
	Color   [ 0.60 0.45 0.35 ] # only slight red
	BlendTexture true
	Radius 625
	Oblateness 0.12 # minimum axis ratio of 1.133
	
	InfoURL "http://www.gps.caltech.edu/~chad/quaoar/"


	EllipticalOrbit	{
		Period          283.234
		SemiMajorAxis    43.128
		Eccentricity      0.0395
		Inclination       8.005
		AscendingNode   189.081
		ArgOfPericenter 163.885
	        MeanAnomaly     258.858
	}

	Albedo 0.12

	UniformRotation
	{
	Period     17.6788 # for a double-peaked light curve
	}
}

"28978 Ixion:Ixion:(2001 KX76" "Sol" { 

	Class "asteroid" 
	Texture "asteroid.jpg" 
	Color   [ 0.65 0.45 0.35 ] # "reddish"
	BlendTexture true
	Radius 600 

	InfoURL "http://www.noao.edu/outreach/press/pr01/pr0110.html"	

	EllipticalOrbit { 
		Epoch        2452400.5       # 2002 May 6 00:00UT
		Period           246.50564 
		SemiMajorAxis     39.3138672 
		Eccentricity       0.2447032 
		Inclination       19.68326 
		AscendingNode     71.0155 
		ArgOfPericenter  300.9234 
		MeanAnomaly      259.585 
	} 

	Albedo 0.04 

	UniformRotation
	{
	Period 30.0 
	}
}

"20000 Varuna:Varuna:2000 WR106" "Sol" { 

	Class "asteroid" 
	Texture "asteroid.jpg" 
	Color   [ 0.65 0.45 0.35 ] # "reddish"
	BlendTexture true
	Radius 450 
	Oblateness 0.333 # axis ratio 1.5:1

	InfoURL "http://www.aas.org/publications/baas/v34n3/dps2002/9.htm"

	EllipticalOrbit { 
		Epoch        2452400.5      # 2002 May 6 00:00UT 
		Period           284.83446 
		SemiMajorAxis     43.290196 
		Eccentricity       0.053794 
		Inclination       17.12557 
		AscendingNode     97.2843 
		ArgOfPericenter  275.5744 
		MeanAnomaly       82.67171 
	} 

	Albedo 0.07 

	UniformRotation
	{
	Period 6.3442 # for a double-peaked light curve 
	}
} 

"55565 2002 AW197:2002 AW197" "Sol" { 

	Class "asteroid" 
	Texture "asteroid.jpg" 
	Color   [ 0.65 0.45 0.35 ]
	BlendTexture true
	Radius  450 

	InfoURL "http://www.aas.org/publications/baas/v34n3/dps2002/301.htm"

	EllipticalOrbit {
		Period           323.976 
      		SemiMajorAxis     47.171 
		Eccentricity       0.1257 
		Inclination       24.370 
		AscendingNode    297.463 
		ArgOfPericenter  296.073 
		MeanAnomaly      272.766 
   	} 

	Albedo 0.10

	UniformRotation
	{
	Period     48.0   # guess
	}
}

"2004 XR190" "Sol" { 

	Class "asteroid" 
	Texture "asteroid.jpg" 
	Radius 320 # "diameter is between 425-850km" 

	InfoURL "http://arxiv.org/abs/astro-ph/0512430"	

	EllipticalOrbit { 
		Epoch        2453800.5       # 2006 Mar 6 00:00UT
		Period           434.981 
		SemiMajorAxis     57.409       
		Eccentricity       0.111       
		Inclination       46.735      
		AscendingNode    252.369 
		ArgOfPericenter  284.115 
		MeanAnomaly      268.060 
	} 

	UniformRotation
	{
	Period     48.0   # guess
	}
}

# Inner Oort cloud

"90377 Sedna:Sedna:2003 VB12" "Sol" { 

	Class "asteroid" 
	Texture "asteroid.jpg" 
	Color   [ 0.75 0.45 0.35 ] # almost as red as Mars
	BlendTexture true
	Radius 850 

	InfoURL "http://www.gps.caltech.edu/~mbrown/sedna/"

	EllipticalOrbit {
		Epoch        2453200.5     # 2004 Jul 14 00:00UT 
		Period         12258.809 
		SemiMajorAxis    531.658  
		Eccentricity       0.8574  
		Inclination       11.930 
		AscendingNode    144.493 
		ArgOfPericenter  311.827 
		MeanAnomaly      357.881 
	} 

	Albedo 0.05 

	UniformRotation
	{
	Period 10 # (much shorter than previously thought)
	}
}