Moons of Mars
Mars has two little moons, Phobos and Deimos, which are thought to be captured asteroids.[1] They were found by Asaph Hall in 1877.[2]
Moons
| Name and how to say its name |
Image | diameter (km) | Mass (kg) | ||
|---|---|---|---|---|---|
| Mars I | Phobos | /ˈfoʊbəs/ FOE-bəs |
.jpg){kind=small} |
22.2 km (27×21.6×18.8) | 1.08×1016 |
| Mars II | Deimos | /ˈdaɪməs/ DYE-məs |
 |
12.6 km (10×12×16) | 2×1015 |
Moons Of Mars Media
Curiosity's view of the Martian moons: Phobos passing in front of Deimos – in real-time (video-gif, 1 August 2013)
The telescope used by Asaph Hall in the discovery of the Martian moons
Night sky of Mars showing Deimos (left) and Phobos (right) in front of Sagittarius, as viewed by the Mars Spirit rover (26 August 2005).
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)
Summary: The Orbits of Phobos and Deimos to scale (1px = 10km), all sizes to scale -- Click to see moons, they are invisible from this level*Author: Nbound 06:01, 13 September 2006 (UTC) Source: Mars Image from Mars page edited to needed requirements
Animation illustrating the asteroid-belt origin for the moons
Orbits of moons and spacecraft orbiting Mars.
References
- ↑ John P. Millis. "Mars Moon Mystery". Archived from the original on 2018-12-26. Retrieved 2013-12-07.
- ↑ "The Planet Mars: A History of Observation and Discovery. Chapter 5: 1877. University of Arizona Press". Uapress.arizona.edu. Archived from the original on 2017-11-03. Retrieved 2013-02-28.
