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Moon

Deimos

Type
Moon
Diameter
12 km

NASA/JPL-Caltech/University of Arizona · NASA media (public domain)

Overview

Scientific overview

Deimos is a moon orbiting Mars.

Physical characteristics

Diameter
12 km
Radius
6.2 km
Density
1.471 g/cm³
Albedo
0.068
Magnitude
12.45

Scale

Compared to Earth

Earth
Deimos

Deimos is 1062× smaller than Earth

12 km across · Earth is 12,742 km

Gallery

The Moons of Mars

Mars is kept company by two cratered moons -- an inner moon named Phobos and an outer moon named Deimos.

2013

NASA/JPL-Caltech/GSFC/Univ. of Arizona · NASA media (public domain)

Source archive ↗

Observation

How this was captured

Source
NASA
Observation date
2009-03-09

Sources

The primary and reference sources this topic draws on.

  • NASANational Aeronautics and Space Administration

    Mission data, planetary science, space telescopes, and public-domain imagery.

    Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.

  • NASA JPLJet Propulsion Laboratory / Solar System Dynamics

    Orbital data, ephemerides, and small-body parameters for planets, asteroids, and comets.