20000 Varuna facts for kids
Artist's idea of what Varuna may look like
|Discovered by||R. McMillan (Spacewatch)|
|Discovery date||28 November 2000|
|Other names||2000 WR106|
|Reference date 14 July 2004 (JD 2453200.5)|
|Longest distance from the Sun||6 781.985 Gm (45.335 AU)|
|Shortest distance from the Sun||6 120.810 Gm (40.915 AU)|
|Longest distance from the center of its orbital path
|6 451.398 Gm (43.129 AU)|
|How long it takes to complete an orbit||103 440.6 d (283.20 a)|
|Average speed||4.53 km/s|
|Angle above the reference plane
|Size and other qualities|
800 km (avg of thermals)
|Average density||0.992 g/cm³|
|Surface gravity||0.15 m/s²|
|Escape velocity||0.39 km/s|
|How much light it reflects||0.037–0.26|
|Avg. surface temp.||≈43–41 K|
|Spectral type||(moderately red) B-V=0.93 V-R=0.64|
Varuna is named after the Hindu deity Varuṇa.
Varuna completes one rotation in about 3.17 hours (or 6.34 hours, depending on whether the light curve is single or double-peaked). Given the fast rotation, which is not common for objects so big, Varuna is thought to be a stretched spheroid, with a density around 1g/cm³ (close to the density of water).
The surface of Varuna is somewhat red and small amounts of water ice have been found on its surface.
20000 Varuna Facts for Kids. Kiddle Encyclopedia.