What are dwarf planets made of?

Pluto's surface is composed of a mixture of frozen nitrogen, methane, and carbon monoxide ices. The dwarf planet also has polar caps and regions of frozen methane and nitrogen. Pluto has three known moons, Hydra, Nix, and Charon. read more

Five recognized dwarf planets; Ceres (1801) Pluto (1930) Eris (2005) Makemake (2005) Haumea (2004) The five dwarf planets: Ceres as seen from the Dawn spacecraft. It is the only dwarf planet in the asteroid belt. Pluto as viewed by New Horizons space probe on July 13, 2015. Eris and its moon Dysnomia viewed by the Hubble Space Telescope. read more

There are 5 officially recognised dwarf planets in our solar system, they are Ceres, Pluto, Haumea, Makemake and Eris. With the exception of Ceres, which is located in the asteroid belt, the other dwarf planets are found in the outer solar system. read more