Orcus
Orcus is a dwarf planet located in the Kuiper Belt, a region of the solar system beyond the orbit of Neptune. It was discovered in 2004 and is named after the Roman god of the underworld. Orcus is similar in size and composition to Pluto, featuring a rocky surface and a thick atmosphere that may contain nitrogen and methane.
Orcus has a moon named Vanth, which is about half the size of Orcus itself. The orbit of Orcus takes approximately 247 years to complete one revolution around the Sun. Its unique characteristics and distant location make it an interesting object of study in planetary science.