Orcus

Orcus — dwarf planet, explore its interactive 3D model in Cosmoscope.

Explore Orcus in a live 3D Solar System. Follow its calculated motion and inspect real astronomical data, distances and orbital facts.

Nicknamed the anti-Pluto: it shares Pluto’s exact 2:3 dance with Neptune but always sits on the opposite side of the Sun. Its surface ices hint at past cryovolcanism, and its moon Vanth is nearly half its size.

Radius

~455 km

Discovered

2004

Year

~247 Earth years

Distance

30–48 AU

Moon

Vanth — unusually large

Orbit

2:3 resonance — the "anti-Pluto"

Explore Orcus in 3D

Cosmoscope places Orcus in the Solar System using astronomical ephemeris or orbital elements, updated for the simulation time. Explore its calculated motion, distance and orbital facts in the interactive 3D view. Accuracy depends on the orbital model and its valid time range.