Dwarf Planet Eris Data

Orbital Elements
Semimajor Axis:67.864 AU
Eccentricity:0.43605
Inclination:44.0393°
Argument of Perifocus:151.643°
Longitude of Ascending Node:35.95086°
Mean Motion:0.00176296° per day
Time of Periapsis:2259 August
Orbital Period:559.08 years
Mass:0.00278 ME
Equatorial Radius:0.0001823 RE
Rotational Inclination:?
Rotational Period:25.9 hours
Surface Temperature:~ -230°C

Satellites

Satellite Name Orbital Semimajor Axis (km) Orbital Period (days) Mass (kg) Discovery
Discoverer NameAnnouncement Date
Dysnomia 3.727·10415.786? M. Brown, et al.2005 Sep 18

1 AU = 1.49597870691·1011 m            1 year = 365.25 days = 31557600 s
1 ME = 5.9742·1024 kg            1 RE = 6.378136·106 m

The URL of this page is: http://www.princeton.edu/~willman/planetary_systems/Sol/Eris
This page was last updated: 2020 October 5
You may contact Alex at: willman@Princeton.EDU
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