136199 Eris

136199 Eris
136199 Eris from ErisAndDysnomia.zip in Orbiter 2006P1
Designation
Name	136199 Eris
Reference body	Sun
Number of satellites	5
Planetary mean orbits
Epoch	2005.71598173516
Semimajor axis (a)	10148508382333.42 m
Eccentricity (e)	0.4374901
Inclination (i)	44.07902° (0.769324030052431 radian)
Longitude of the ascending node (LAN, ☊)	35.9276° (0.627054912339515 radian)
Longitude of periapsis (ϖ)	187.50013° (3.27249461641740 radian)
Mean longitude (L)	25.98231° (0.453476856773848 radian)
Selected physical parameters
Mean radius	1356407.61 m
Mass	4.28625×1022 kg
Sidereal rotation period	138240 sec (38.4 hours)
SidRotOffset	0
Obliquity	30.68° (0.535467015 radian)
LAN	0
Note	*Elements given are from 136199 Eris.cfg (ErisAndDysnomia.zip)

136199 Eris (2003 UB₃₁₃) is the second largest after 134340 Pluto and the most massive Dwarf planet in the solar system, and is a trans-Neptunian object in the scattered disc. Eris was discovered by Mike Brown at the Palomar Observatory in January 2005. There is a pre-discovery image from October 2003, but, it was not recognized due to its slow orbital motion.

Eris is named for Eris the Greek goddess of strife and discord.

Eris has one satellite, Dysnomia.

Eris in Orbiter

Eris was first introduced with the release of ErisAndDysnomia.zip in May 2008.

Orbiter versions and add-ons which include Pluto
Add-on	Source	Version	Author	Type	Release Date	Compatibility	Wiki article
Eris and Dysnomia	O-F Resources	2008-05-10	Piper	Scenery	11 May 2008

Gallery

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  136199 Eris from ErisAndDysnomia.zip in Orbiter 2006P1
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  Image of Eris and Dysnomia by Hubble in August 2006
  from Wikimedia Commons