Orcus from Anglo-Saxon, a word meaning demon, usually supposed to be derived from the Latin Orcus—Hell. But I doubt this, though the matter is too involved to set out here. From this use, countless other fantasy games and works of fiction have borrowed the concept of the orc. The name "Orcus" appears in the "Dungeons & Dragons" role-playing game as Orcus, Prince of the Undead. Orcus appears as a character in Christopher Moore's "A Dirty Job". The Kuiper belt object 90482 Orcus is named after Orcus. This was because Orcus was sometimes considered to be another name for Pluto, and also
90482 Orcus of death, and frequently acted as a guide of the deceased to the underworld. The absolute magnitude of Orcus is approximately 2.3 (comparable with the 2.6 of cubewano 50000 Quaoar). The detection of Orcus by the Spitzer Space Telescope in the far infrared and by Herschel Space Telescope in submillimeter constrains its diameter to . Orcus appears to have an albedo of about 21% to 25%, which may be typical of trans-Neptunian objects approaching the 1000 km diameter range. In the magnitude and size estimates reported above it was assumed that Orcus is a singular object. The presence of a