Deimos

Also known as Mars II, Deimos (moon), Mars II Deimos

moon of Mars

AI overview

Deimos is one of the two moons that orbit the planet Mars. It is smaller and more distant from Mars than its companion moon Phobos, making it a less prominent feature in the Martian sky.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Diameter: 12.4
Radius: 6.27
Mass: 1.48
Orbital period: 1.26244
Image: NASA-Deimos-MarsMoon-20090221.jpg

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Commons category: Deimos (moon)
time of discovery or invention: 1877-08-12
semi-major axis of an orbit: 23458
orbital eccentricity: 0.0002
density: 1.465
apparent magnitude: 12.89
albedo: 0.068
orbital inclination: 27.58
periapsis: 23455.5
apoapsis: 23470.9
surface gravity: 0.003
volume as quantity: 1033

Sources (9)

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Article

Deimos (/ˈdaɪməs/) 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 other moon, Phobos. It is named after Deimos, the Ancient Greek god and personification of dread and terror.

Discovery and etymology