20000 Varuna facts for kids
Artist's idea of what Varuna may look like
|Discovered by||R. McMillan (Spacewatch)|
|Discovery date||28 November 2000|
|MPC designation||20000 Varuna|
|Epoch 14 July 2004 (JD 2453200.5)|
|Aphelion||6 781.985 Gm (45.335 AU)|
|Perihelion||6 120.810 Gm (40.915 AU)|
|6 451.398 Gm (43.129 AU)|
|103 440.6 d (283.20 a)|
Average orbital speed
|Dimensions||800 km (avg of thermals)
Sidereal rotation period
|0.132 16 d (3.17 h)|
|(moderately red) B-V=0.93 V-R=0.64|
20000 Varuna is a big Kuiper belt object (KBO). It could be a dwarf planet. Before it was named Varuna, it had the provisional designation 2000 WR106.
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.
Site updated Reretrived on 2006-07-10
|The Solar System|
☾ = moon(s) ∅ = rings
|Mercury||Venus||Earth ☾||Mars ☾|
|Jupiter ☾ ∅||Saturn ☾ ∅||Uranus ☾ ∅||Neptune ☾ ∅|
|Dwarf planets||Ceres||Pluto ☾||Haumea ☾||Makemake|
|Groups and families: Vulcanoids · Near-Earth asteroids · Asteroid belt
Jupiter Trojans · Centaurs · Neptune Trojans · Asteroid moons · Meteoroids · Pallas · Juno · Vesta · Hygiea · Interamnia · Europa
|See also the list of asteroids.|
|Kuiper belt – Plutinos: Orcus · Ixion – Cubewanos: Varuna ·
Quaoar · Huya
|Scattered disc: Sedna|
|Comets||Periodic comets and non-periodic comets
Damocloids · Oort cloud
|See also the list of solar system objects|
Images for kids
Varuna was discovered with the Spacewatch 0.9-meter telescope at the Kitt Peak National Observatory
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