90482 Orcus, provisional designation 2004 DW, is a trans-Neptunian object with a large moon, Vanth. With a diameter of 910 km, it is a possible dwarf planet. The surface of Orcus is relatively bright with albedo reaching 23 percent, neutral in color and rich in water ice.
Orbital period: 247Â years
Radius: 479.2Â km
Discovered: 17 February 2004
Mass: 6.32 Ă 10^20Â kg
Gravity: 0.18 m/s²
Moon: Vanth
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