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Number of Moons around Mars

How many moons are there around Mars?


According to the book “The Solar System”, by Michael A. Seeds, Mars has two small moons: Phobos and Deimos. The first one measures 20km x 23km x 28km; the second one has a diameter of 12km. Deimos is 3 times more distant from Mars than Phobos ‘“ should it be observed from Mars, this moon would seem 15 times smaller in diameter than Earth’â„¢s moon.

This fact is verified on : December 12, 2012.

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1 Comment

  1. Trying hard not to be picky here but there are no moons ON Mars. Phobos and Deimos orbit AROUND Mars…

    As an IB Physics teacher I’m always looking for ways to have my students (many of whom are second language speakers of English) express themselves clearly in English, so I have to point this out. I do like the site, very useful for gaining an understanding of orders of magnitude.

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