61 Virginis c
Massive exoplanet
From Wikipedia, the free encyclopedia
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]
61 Virginis System
DiscoveredbyVogt et al.
Discoverydate2009-12-14
| Discovery | |
|---|---|
| Discovered by | Vogt et al. |
| Discovery site | Keck Observatory Anglo-Australian Observatory |
| Discovery date | 2009-12-14 |
| Radial velocity | |
| Orbital characteristics | |
| Apastron | 0.2487 AU (37,200,000 km) |
| Periastron | 0.1863 AU (27,870,000 km) |
| 0.2175±0.0001 AU | |
| Eccentricity | 0.14±0.06 |
| 38.021±0.034 d 0.10409 y | |
Average orbital speed | 62.45 |
| 2453369.166 | |
| 341±38 | |
| Star | 61 Virginis |