90482 Orcus This means that Orcus is currently viewed pole-on, which could explain the near absence of any rotational modulation of its brightness. If, however, the primary is tidally locked with the satellite, the rotational period will coincide with the 9.7-day orbital period of Vanth. This minor planet was named after one of the Roman gods of the underworld, Orcus. While Pluto was the ruler of the underworld, Orcus was a punisher of the damned. The approved naming citation was published by the Minor Planet Center on 26 November 2004 (). Under the guidelines of the International Astronomical Union's (IAU) naming conventions,
Tomb of Orcus name "Tomb of Orcus". The Italian name ("Tomba dell'Orco") can also mean "Tomb of the Ogre", and it is used that way in Italy today. The second tomb has never been fully excavated. Though most of the walls are muraled, the artists did not complete the ceiling. A scientific analysis in 2001 revealed that the paint used contained cinnabar, ochre, orpiment, calcite, copper, and Egyptian blue. While the artwork in Orcus I is highly praised (particularly the painting of Velia Velcha; see below), some of the artwork of Orcus II is considered poorly done. It is likely that the French