The geology of Charon encompasses the characteristics of the surface, crust, and interior of Pluto's moon Charon. Like the geology of Pluto, almost nothing was known of Charon's geology until the New Horizons of the Pluto system on 14 July 2015. Charon's diameter is 1,208 km (751 mi)—just over half that of Pluto.[1] Charon is sufficiently massive to have collapsed into a spheroid under its own gravity.
- ^ "How Big Is Pluto? New Horizons Settles Decades-Long Debate". NASA. 2015. Retrieved 13 July 2015.