An areocentric orbit is an orbit around the planet Mars.
The areo- prefix is derived from "Ares," the Greek equivalent of the Roman god Mars. The name is analogous to the term "geocentric orbit" for an orbit around Earth and "heliocentric orbit" for an orbit around the Sun. As with these other orbits, the apsides of an areocentric orbit are sometimes called by specialized names: the pericenter is named periareon (analogous to "perigee") and the apocenter is named apoareon (analogous to "apogee").
The first artificial satellite to orbit another planet — the U.S. probe Mariner 9 — entered areocentric orbit on 13 November 1971.[1] Within a month, Mariner 9 was joined in orbit by two Soviet orbiters: Mars 2 (27 November 1971) and Mars 3 (2 December 1971).[2]
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References
- ^ Edward Clinton Ezell; Linda Neuman Ezell (1984). On Mars: Exploration of the Red Planet, 1958–1978 (NASA SP-4212). The NASA History Series. NASA Scientific and Technical Information Branch. p. 288.
- ^ V.G. Perminov (July 1999). "4.6 The Spacecraft's Struggle to Mars". The Difficult Road to Mars (NP-1999-06-251-HQ) (PDF). Monographs in Aerospace History. Translated by Katherine A. Nazarova. NASA. p. 57.
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This page was last edited on 11 October 2023, at 10:08