Astronomy:61 Virginis c

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61 Virginis c
Discovered byVogt et al.
Discovery siteKeck Observatory
Anglo-Australian Observatory
Discovery date2009-12-14
Radial velocity
Orbital characteristics
Apastron0.2487 AU (37,200,000 km)
Periastron0.1863 AU (27,870,000 km)
0.2175±0.0001 AU
Orbital period38.021±0.034 d
0.10409 y
Average Orbital speed62.45
Time of periastron2453369.166
Star61 Virginis

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]

See also


  1. Vogt, Steven (2009). "A Super-Earth and two Neptunes Orbiting the Nearby Sun-like star 61 Virginis". The Astrophysical Journal 708: 1366–1375. doi:10.1088/0004-637X/708/2/1366. Bibcode2010ApJ...708.1366V. 
  2. Tim Stephens (2009-12-14). "New planet discoveries suggest low-mass planets are common around nearby stars". UCSC News. UC Santa Cruz. Archived from the original on 23 December 2009. Retrieved 2009-12-14. 

External links

Coordinates: Sky map 13h 18m 24.3s, −18° 18′ 40.3″