90482 Orcus given the designation S/2005 (90482) 1 before later being named "Vanth". It orbits Orcus in a nearly face-on circular orbit with an eccentricity of about 0.007, and an orbital period of 9.54 days. Vanth orbits only from Orcus and is too close to Orcus for ground-based spectroscopy to determine the surface composition of the satellite. Mike Brown suspects that like the Pluto–Charon system, Orcus and Vanth are tidally locked. Vanth does not resemble known collisional satellites because its spectrum is very different from that of its primary, and it may be a captured KBO. Vanth could also have originated as
Tomb of Orcus Tomb of Orcus The Tomb of Orcus (), sometimes called the Tomb of Murina (), is a 4th-century BC Etruscan hypogeum (burial chamber) in Tarquinia, Italy. Discovered in 1868, it displays Hellenistic influences in its remarkable murals, which include the portrait of Velia Velcha, an Etruscan noblewoman, and the only known pictorial representation of the demon Tuchulcha. In general, the murals are noted for their depiction of death, evil, and unhappiness. Because the tomb was built in two sections at two stages, it is sometimes referred to as the "Tombs of Orcus I" and "II"; it is believed to have