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Haumea: Facts & Figures
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Discovered By
Sierra Nevada Observatory
Date of Discovery
7 Mar. 2003
Orbit Size Around Sun (semi-major axis)
Metric: 6,432,011,461 km
English: 3,996,666,630 miles
Scientific Notation: 6.4320115 x 109 km (4.299534075 x 101 A.U.)
By Comparison: 42.995
Perihelion (closest)
Metric: 5,157,623,774 km
English: 3,204,798,833 miles
Scientific Notation: 5.15762 x 109 km (3.448 x 101 A.U.)
By Comparison: 34.47658527
Aphelion (farthest)
Metric: 7,706,399,149 km
English: 4,788,534,427 miles
Scientific Notation: 7.70640 x 109 km (5.151 x 101 A.U.)
By Comparison: 51.51409623
Orbit Period (Length of Year)
281.93 Earth years
Orbit Circumference
Metric: 40,013,930,298 km
English: 24,863,503,575 miles
Scientific Notation: 4.001 x 1010 km
By Comparison: 42.573
Average Orbit Velocity
Metric: 16,191 km/h
English: 10,061 mph
Scientific Notation: 4.4974 x 103 m/s
By Comparison: 0.151
Orbit Eccentricity
0.198132061
By Comparison: 11.856
Orbit Inclination
28.22
Sidereal Rotation Period (Length of Day)
0.163 Earth days
3.91540 hours
By Comparison: 0.16
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Last Updated: 6 Apr 2012