astro.wikisort.org - Meteorite

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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  61 Virginis System

61 Virginis c

Discovery
Discovered by	Vogt et al.
Discovery site	Keck Observatory Anglo-Australian Observatory
Discovery date	2009-12-14
Detection method	Radial velocity
Orbital characteristics
Apastron	0.2487 AU (37,200,000 km)
Periastron	0.1863 AU (27,870,000 km)
Semi-major axis	0.2175±0.0001 AU
Eccentricity	0.14±0.06
Orbital period (sidereal)	38.021±0.034 d 0.10409 y
Average orbital speed	62.45
Time of periastron	2453369.166
Argument of periastron	341±38
Star	61 Virginis

See also

• List of star systems within 25–30 light-years

References

External links

• Jean Schneider (2011). "Notes for Planet 61 Vir c". Extrasolar Planets Encyclopaedia. Retrieved 10 October 2011.

На других языках

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- [en] 61 Virginis c

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[es] 61 Virginis c

61 Virginis c es un planeta extrasolar que orbita la estrella de tipo G 61 Virginis, localizado aproximadamente a 27 años luz en la constelación de Virgo. Este planeta tiene una masa 18,2 veces la de la Tierra y tarda 28 días en completar su periodo orbital, siendo su semieje mayor de aproximadamente 0,21 UA. Este planeta fue descubierto el 14 de diciembre de 2009 usando el método de la velocidad radial y el telescopio Keck.[1][2] Es probable que sea un gigante gaseoso como Urano o Neptuno.

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