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Phobos

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Phobos (or Mars I) is a moon of the planet Mars, and the larger of the two moons of Mars. Discovered in 18 August
250px-Phobos colour 2008

Enhanced colour image of Phobos

1877 by Asaph Hall, it is 7.24 times more massive than its sister moon, Deimos.

Phobos is a small, irregular and rocky body. It has numerous craters, the main one of which is named Stickney. The impact that caused this huge crater could have almost shattered the moon.

Phobos was viewed by the Curiousity craft in 2013.

InformationEdit

  • Dimensions: 26.8 × 22.4 × 18.4 km 
  • Mass: 1.072×1016 kg
  • Semimajor Axis: 9,377.2 km
  • Orbital Period: 7 h 39.2 min
  • Inclination: 1.093° (To Mars' equator)
  • Orbital Eccentricity: 0.0151
  • Discovered: 1877
  • Host Planet: Mars

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