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Deimos Moon 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. Deimos size compared to the Moon. Facts about Deimos. Neither Phobos nor Deimos have atmospheres.
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] It is named after Deimos, the Ancient Greek god and personification of dread and terror.
Deimos is the smaller of the two Martian moons and is less irregular in shape. The largest crater on Deimos is approximately 1.4 miles (2.3 km) in diameter, 1/5 the size of the largest crater on Phobos.
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.
8 gru 2017 · Mars is the only terrestrial planet to host multiple moons. The smaller of the two, the lumpy moon Deimos, bears more resemblance to an asteroid than to most of the moons in the solar system, a...
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 diameter of just 12.4 km (7.7 miles).
8 gru 2017 · Both are tiny — the larger, Phobos, is only 14 miles across (22 kilometers), while the smaller, Deimos, is only 8 miles (13 km), making them some of the smallest moons in the solar system.
