Moons of Mars facts for kids

Phobos (top) and Deimos (bottom).

Mars has two little moons, Phobos and Deimos, which are thought to be captured asteroids. They were found by Asaph Hall in 1877.

Moons

Name and how to say its name			Image	diameter (km)	Mass (kg)
Mars I	Phobos	FOE-bəs		22.2 km (27×21.6×18.8)	1.08×1016
Mars II	Deimos	DYE-məs		12.6 km (10×12×16)	2×1015

The Solar System
Sun • Heliosphere	Planets ☾ = moon(s) ∅ = rings		Mercury	Venus	Earth ☾	Mars ☾
			Jupiter ☾ ∅	Saturn ☾ ∅	Uranus ☾ ∅	Neptune ☾ ∅
	Dwarf planets		Ceres	Pluto ☾	Haumea ☾	Makemake
			Eris ☾
	Small Solar System bodies	Asteroids (minor planets)	Groups and families: Vulcanoids · Near-Earth asteroids · Asteroid belt Jupiter Trojans · Centaurs · Neptune Trojans · Asteroid moons · Meteoroids · Pallas · Juno · Vesta · Hygiea · Interamnia · Europa
			See also the list of asteroids.
		Trans- Neptunians	Kuiper belt – Plutinos: Orcus · Ixion – Cubewanos: Varuna · Quaoar · Huya
			Scattered disc: Sedna
		Comets	Periodic comets and non-periodic comets Damocloids · Oort cloud
See also the list of solar system objects

Images for kids

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  Curiosity's view of the Martian moons: Phobos passing in front of Deimos – in real-time (video-gif, 1 August 2013)

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  The telescope used by Asaph Hall in the discovery of the Martian moons

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  Apparent sizes of the moons of Mars, Deimos and Phobos, and the Moon as viewed from the surface of their respective planets (Mars' moons imaged by the Curiosity rover, 1 August 2013)

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  Animation illustrating the asteroid-belt origin for the moons

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  Phobos, with Stickney Crater on the right (2003).

• 

  Phobos (1998).

See also

In Spanish: Satélites de Marte para niños