Hiʻiaka (moon)
Larger moon of Haumea / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Hi'iaka (moon)?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
Hiʻiaka is the larger, outer moon of the trans-Neptunian dwarf planet Haumea. It is named after one of the daughters of Haumea, Hiʻiaka, the patron goddess of the Big Island of Hawaii. It orbits once every 49.12±0.03 d at a distance of 49880±198 km, with an eccentricity of 0.0513±0.0078 and an inclination of 126.356±0.064°. Assuming its estimated diameter of over 300 km is accurate, it may be the fourth- or fifth-largest known moon of a Trans-Neptunian object, after Pluto I Charon, Eris I Dysnomia, Orcus I Vanth, and possibly Varda I Ilmarë and Salacia I Actaea.
Quick Facts Discovery, Discovered by ...
Discovery | |
---|---|
Discovered by | Michael E. Brown, Chad Trujillo, David Rabinowitz, et al. |
Discovery date | 26 January 2005 |
Designations | |
Designation | Haumea I |
Pronunciation | /hiːʔiˈɑːkə/ Hawaiian: [ˈhiʔiˈjɐkə] |
(136108) 2003 EL61 I S/2005 (2003 EL61) 1 | |
Orbital characteristics[1] | |
49880±198 km | |
Eccentricity | 0.0513±0.0078 |
49.12±0.03 d | |
152.8°±6.1° | |
Inclination | 126.356±0.064° |
206.766°±0.033° | |
154.1°±5.8° | |
Satellite of | Haumea |
Physical characteristics | |
Mean radius | ~160 km[1] |
Mass | (1.79±0.11)×1019 kg[1] (0.45% of Haumea) |
Mean density | ~1 g/cm3 |
~9.8 h[2] | |
Albedo | 0.8±0.07[3][1] |
Temperature | 32±3 K |
20.3 (3.0 difference from primary's 17.3)[3] | |
Close