Deimos

Also known as Mars II, Deimos (moon), Mars II Deimos

moon of Mars

OverviewAI-generated

Deimos is a celestial body discovered on August 12, 1877. It has a diameter of 12.4 and a radius of 6.27. The object possesses a volume of 1033 and a mass of 1.48. Its density is recorded as 1.465.

Deimos orbits with a semi-major axis of 23458. The orbital period is 1.26244, and the eccentricity is 0.0002. The inclination of the orbit is 27.58. The periapsis is 23455.5, while the apoapsis is 23470.9. Surface gravity measures 0.003.

The apparent magnitude of Deimos is 12.89. Its albedo is 0.068. The subject is categorized under "Deimos (moon)" in Commons. It is referenced by 667 other encyclopedia articles.

Synthesized by Vinony from 17 facts across 2 sources: Wikidata, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

~11 min read

Encyclopedic overview

Deimos (/ˈdaɪməs/) 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. Deimos is 23,460 km (14,580 mi) from Mars, much farther than Mars's other moon, Phobos. It is named after Deimos, the Ancient Greek god and personification of dread and terror.

Discovery and etymology

Excerpted from Wikipedia’s “Deimos” article, available under the CC BY-SA 4.0 licence.