Phobos (moon)

Phobos (foe'-bəs, , Greek Φόβος) (systematic designation: ) is the larger and closer of Mars' two moons (the other being Deimos). It is named after the Greek god Phobos (which means "fear"), a son of Ares (Mars). Phobos is one of the smallest moons in the solar system, and orbits about 6000 km (3728 mi) above the surface of Mars, closer to a major planet than any other moon.
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