Astronomy:61 Virginis c
|Discovered by||Vogt et al.|
|Discovery site||Keck Observatory|
|Apastron||0.2487 AU (37,200,000 km)|
|Periastron||0.1863 AU (27,870,000 km)|
|Orbital period||38.021±0.034 d|
|Average Orbital speed||62.45|
|Time of periastron||2453369.166|
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.
- 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. Bibcode: 2010ApJ...708.1366V.
- 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. https://web.archive.org/web/20091223184326/http://www.ucsc.edu/news_events/text.asp?pid=3439. Retrieved 2009-12-14.
- Jean Schneider (2011). "Notes for Planet 61 Vir c". Extrasolar Planets Encyclopaedia. http://exoplanet.eu/planet.php?p1=61+Vir&p2=c. Retrieved 10 October 2011.
Original source: https://en.wikipedia.org/wiki/ 61 Virginis c. Read more