List of geological features on Charon

The geological features of Charon, the largest moon of Pluto, are being mapped by scientists using data from the New Horizons spacecraft.

As of April 2020[update], only some of the names have been officially recognized by the International Astronomical Union, which has agreed that names for features on Charon should come from the following:[1][2] Some features discovered by the New Horizons mission have been given provisional names based on various science fiction and fantasy franchises, including Star Wars, Star Trek, Doctor Who, Alien, Firefly, and Macross.

On 11 April 2018, the IAU announced that several of the feature names had been officially recognized.

A chasma (plural chasmata) is a deep, elongated, steep-sided depression.

Craters on Charon are named after characters associated with science fiction and fantasy.

Annotated map of Charon, with IAU-approved names for features as of 2018
Photo of Charon centered on Ripley Crater . Nostromo Chasma crosses Ripley vertically. Vader is the dark crater at 12:00, Organa Crater is at 9:00, Skywalker Crater at 8:00, Gallifrey Macula and Tardis Chasma at 4:00.