Phobos, a moon of Mars
Phobos
Deimos
Phobos from Mars Reconnaissance Orbiter, taken in March 2008. Image credit: NASA/JPL-Caltech/University of Arizona
Classification
Natural satellite of Mars
Average distance from Mars
9,376 km
5,826 miles
5,826 miles
Diameter across equator
23 km
14 miles
14 miles
Time to orbit Mars
7 hours, 39 mins
Year of Discovery
1877
Origin of Name
In Greek mythology, Phobos is the god of Fear and Panic, the son of Ares (Mars) and Aphrodite (Venus) and brother of Deimos.
Phobos
Deimos