Chitral Astronomical Society

Chitral Astronomical Society

Skies over the Hindu Kush

Encyclopedia

Moon

Phobos

Mars' larger, doomed inner moon.

A small, irregularly shaped moon orbiting Mars every 7.6 hours. Tidal forces are spiraling it inward — it will crash or break up within 50 million years.

Overview

A small, irregularly shaped moon orbiting Mars every 7.6 hours. Tidal forces are spiraling it inward — it will crash or break up within 50 million years.

See also

Deimos

Mars' tiny outer moon.

Callisto

Jupiter's heavily cratered outer Galilean moon.

Mimas

Saturn's 'Death Star' moon.

Rhea

Saturn's second-largest moon.

Oberon

Uranus' second-largest and outermost major moon.

Miranda

Uranus' tortured-looking small moon.