Deimos (moon) - Wikipedia
Deimos (/ ˈ d aɪ m ə s /; systematic designation: Mars II) [11] 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. [5] Deimos is 23,460 km (14,580 mi) from Mars, much farther than Mars's other moon, Phobos. [12]
Deimos - NASA Science
Deimos is a dark body that appears to be composed of C-type surface materials, similar to that of asteroids found in the outer asteroid belt. Deimos was discovered on Aug. 11, 1877 by Asaph Hall. Hall named Mars' moons for the mythological sons of Ares, the Greek counterpart of the Roman god, Mars.
Deimos: Mars' smallest moon | Space
Dec 8, 2017 · Deimos is Mars' outer moon. It's a tiny, irregularly shaped moon and smaller than Mars' other moon, Phobos. Despite being unspectacular, Deimos remains a fascinating mystery. What is...
Deimos | Orbit, Size & Facts | Britannica - Encyclopedia Britannica
Deimos, the outer and smaller of Mars’s two moons. It was discovered telescopically with its companion moon, Phobos, by the American astronomer Asaph Hall in 1877 and named for one of the sons of Ares, the Greek counterpart of the Roman god Mars.
See the First Detailed Close-Ups of Mars’ Moon Deimos
Apr 26, 2023 · Deimos is the smaller of Mars’ two moons, measuring just 9 by 7 by 6.8 miles, per NASA. The other, Phobos is a bit larger, at 17 by 14 by 11 miles. Phobos has been well-studied in the past...
Deimos (moon) - Simple English Wikipedia, the free encyclopedia
Deimos (or Mars II) is the smaller moon of Mars. Its name comes from the Greek word for terror. Its orbital period is 30.3 hours, which is 1.263 days. Deimos is only 15 kilometers in diameter. It is covered with craters, as Earth's moon and other bodies without an atmosphere are.
Deimos Moon Facts - Space Facts
Deimos is the smaller of the two moons of Mars. Like its sibling moon Phobos, it has a dusty “regolith” covered surface, and is made of rocky material. Deimos size compared to the Moon. Neither Phobos nor Deimos have atmospheres. They are too small, with no volatiles to create an atmosphere, and their gravity too low to retain one.
This is our 1st detailed look at Mars' most mysterious moon Deimos ...
Apr 24, 2023 · Deimos, one of the small moons of Mars, was imaged by the Hope Mars mission from as close as 60 miles (100 km), the closest look yet. The flashy new imagery was released Monday (April 24) as...
Deimos: Facts about Mars' Moon, Deimos • The Planets
Deimos (pronounced DEE-MOS) is the second moon orbiting the planet Mars along with Phobos. It is considered the second moon of the red planet because its orbit path is much further away than Phobos. Deimos is also the smaller of the two moons with a …
Mars' Moon Deimos - NASA
Mar 12, 2009 · Deimos has a smooth surface due to a blanket of fragmental rock or regolith, except for the most recent impact craters. It is a dark, reddish object, very similar to Mars’ other moon, Phobos. These Deimos images combine HiRISE exposures in near-infrared, red and blue-green wavelengths.