Trigarium on February 27 and March 14, also celebrated for Mars, may have been held at the Trigarium as well, and possibly events for the "ludi tarentini", which became the Saecular Games. The area may, however, have been only a practice field for these events. An underground altar to the divine couple Dis Pater and Proserpina was located in the Tarentum, near or adjacent to the Trigarium. Dis was the Roman equivalent of the Greek god Plouton (Latinized as Pluto), who abducted Proserpina (Greek Persephone or Kore "the Maiden") in his chariot to the underworld to become his bride and queen.
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