Artist's Concept of Makemake

Discovered in March 2005, Makemake is the second furthest dwarf planet to the Sun. It is also the 3rd largest dwarf planet, just slightly smaller and dimmer than Pluto.

Composition

Makemake's surface is covered with large amounts of almost pure methane ice, which makes the dwarf planet appear reddish-brown in color.

Lack of data

With no detected moons and the lack of variations in its brightness, it is difficult to determine Makemake's mass, density or rotation period.