Location: Resides in the Kuiper Belt.

Composition: The surface is thought to be primarily composed of methane, ethane, and nitrogen ices.

Atmosphere: May have a very tenuous atmosphere that appears when it is closest to the Sun in its orbit.

Color: Appears reddish-brown in color, likely due to the presence of tholins, organic compounds formed by radiation.

Moons: Has one known moon, designated S/2015 (136472) 1 and nicknamed MK 2.