Deimos (moon)
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Deimos is the smaller and outer of the two natural satellites of Mars, the other being Phobos. Deimos has a mean radius of 6.2 km and takes 30.3 hours to orbit Mars. Deimos is 23,460 km from Mars, muc
Deimos, captured by the Mars Reconnaissance Orbiter in false color
Asaph Hall III, discoverer of Deimos
Deimos transits the Sun – as viewed by the Mars rover Opportunity (4 March 2004)
Deimos and Phobos as seen from Mars, compared in apparent size to the Moon as seen from Earth. If they would be as far away from Mars as the Moon from Earth, they would appear as faint star-like features in the Martian sky.
Phobos (moon)
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Phobos is the innermost and larger of the two natural satellites of Mars, the other being Deimos. The two moons were discovered in 1877 by American astronomer Asaph Hall. Phobos is named after the Gre
Deimos (moon)
…Deimos () is the smaller and outer of the two natural satellites of Mars, the other being Phobos. Deimos has a mean radius of 6.2 km (3.9 mi) and takes 30.3 hours to orbit Mars. Deimos is 23,460 km (14,580 mi) from Mars, much farther than Mars's…
A false color composite image of Phobos captured by the Mars Reconnaissance Orbiter in 2008
An artist's concept of Martian Moons eXploration spacecraft
The Phobos monolith (right of center) as taken by the Mars Global Surveyor (MOC Image 55103, 1998)