61 Virginis c explained

61 Virginis c
Discoverer:Vogt et al.
Discovery Site:Keck Observatory
Anglo-Australian Observatory
Discovered:2009-12-14
Apsis:astron
Aphelion:0.2487AU
Perihelion:0.1863AU
Semimajor: AU
Period: d
y
Avg Speed:62.45

61 Virginis c (abbreviated 61 Vir c) is an exoplanet orbiting the 5th apparent-magnitude G-type main-sequence star 61 Virginis in the constellation Virgo. 61 Virginis c has a minimum mass of 18.2 times that of Earth and orbits one-fifth the distance to the star as Earth orbits the Sun, at a precise distance of 0.2175 AU with an eccentricity of 0.14. This planet would most likely be a gas giant like Uranus and Neptune. This planet was discovered on 14 December 2009 from using a precise radial velocity method taken at Keck and Anglo-Australian Observatories.[1] [2]

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Notes and References

  1. Vogt . Steven . 0912.2599 . A Super-Earth and two Neptunes Orbiting the Nearby Sun-like star 61 Virginis . 2009 . 10.1088/0004-637X/708/2/1366 . 708 . The Astrophysical Journal . 2 . 1366–1375 . 2010ApJ...708.1366V. 1979253 .
  2. Web site: New planet discoveries suggest low-mass planets are common around nearby stars . Tim Stephens . 2009-12-14 . UCSC News . UC Santa Cruz . 2009-12-14 . https://web.archive.org/web/20091223184326/http://www.ucsc.edu/news_events/text.asp?pid=3439 . 23 December 2009 . dead .