Phobos (moon)

Phobos (IPA {{IPA|/?fo?b?s/}}, Greek Φόβος: "Fright"), is the larger and innermost of Mars' two moons, and is named after Phobos, son of Ares (Mars) from Greek Mythology. Phobos orbits closer to a major planet than any other moon in the solar system, less than 6000 km above the surface of Mars, and is also one of the smallest known moons in the solar system. Its systematic designation is Mars I. The adjectival form of the name is Phobian, and in fairly common usage.

References

• The Observatory, 1 (1877) 181
• Astronomische Nachrichten, 91 (1878) 13/14
• Monthly Notices of the Royal Astronomical Society, 38 (1878) 205
• Astronomische Nachrichten, 92 (1878) 47/48
• Asaph Hall and the Moons of Mars
• {{note|Holsapple}} Holsapple K.A. (2001), Equilibrium Configurations of Solid Cohesionless Bodies, Icarus, v. 154, p. 432?448 http://keith.aa.washington.edu/papers/icarus2001.pdf
• {{note|Craddock}} Craddock R.A. (1994), The Origin of Phobos and Deimos, Abstracts of the 25th Lunar and Planetary Science Conference, held in Houston, TX, 14-18 March 1994., p.293
• I. S. Shklovsky, The Universe, Life, and Mind, Acad. of Sc. USSR, Moscow, 1962
• Irish Astronomical Journal, Vol. 6, p. 40, March 1963
• E. J. Öpik, Irish Astronomical Journal, Vol. 6, p. 281, September 1964
• S. F. Singer, Astronautics, February 1960
• S. F. Singer, On the origin of the Martian satellites Phobos and Deimos, Seventh International Space Science Symposium held 10-18 May, 1966 in Vienna, North-Holland Publishing Company, 1967

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• Table II confirms 1877-08-18.38498 for first observation of Phobos