Dwarf Planet Haumea Data

Orbital Elements

Semimajor Axis: 43.1822 AU

Eccentricity: 0.19489

Inclination: 28.213545°

Argument of Perifocus: 238.779°

Longitude of Ascending Node: 122.1628°

Mean Motion: 0.00347334° per day

Time of Periapsis: 2132 July 11

Orbital Period: 283.77 years

Mass: 0.00070 M_E

Equatorial Radius: 0.00012 R_E

Rotational Inclination: ?

Rotational Period: 3.915341 hours

Surface Temperature: ~ -241°C

Satellites

Satellite Name	Orbital Semimajor Axis (km)	Orbital Period (days)	Mass (kg)	Discovery
Satellite Name	Orbital Semimajor Axis (km)	Orbital Period (days)	Mass (kg)	Discoverer Name	Announcement Date
Hi'iaka	4.99·10⁴	49.12	1.8·10¹⁹	M. Brown, et al.	2005 October 10
Namaka	2.56·10⁴	18.278	2·10¹⁸	M. Brown, et al.	2005 November 29

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

The URL of this page is: http://www.princeton.edu/~willman/planetary_systems/Sol/Haumea

This page was last updated: 2020 October 5

You may contact Alex at: willman@Princeton.EDU

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