Dwarf Planet Haumea Data


Image courtesy of J. L. Ortiz

Orbital Elements
Semimajor Axis:43.34 AU
Eccentricity:0.189
Inclination:28.19°
Argument of Perifocus:239.51°
Longitude of Ascending Node:121.90°
Mean Motion:0.003453° per day
Time of Periapsis:2133 October
Orbital Period:285.4 years
Mass:0.00070 ME
Equatorial Radius:0.24 RE
Rotational Inclination:?
Rotational Period:3.9154 hours
Surface Temperature:~ -241°C

Satellites

Satellite Name Orbital Semimajor Axis (km) Orbital Period (days) Mass (kg) Discovery
Discoverer NameAnnouncement Date
Hi'iaka 4.95·10449.12? M. Brown, et al.2005 October 10
Namaka 3.93·10434.1? M. Brown, et al.2005 November 29

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/Haumea
This page was last updated: 2008 September 17
You may contact Alex at: willman@Princeton.EDU
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