Astronomy:Kepler-20c
From HandWiki
Short description: Neptunian exoplanet orbiting Kepler-20
| Discovery | |
|---|---|
| Discovered by | Kepler team |
| Discovery date | 20 December 2011 |
| Transit (Kepler Mission) | |
| Orbital characteristics | |
| 0.0930 AU (13,910,000 km) | |
| Eccentricity | <0.40 |
| Orbital period | 10.854092 d |
| Inclination | 88.39+0.16 −0.14 |
| Star | Kepler-20 (KOI-070) |
| Physical characteristics | |
| Mean radius | 3.07+0.20 −0.31 R⊕ |
| Mass | 16.1+3.3 −3.7 M⊕ |
| Mean density | 2.91+0.85 −1.08 g cm−3 |
| Physics | 713 |
Kepler-20c is an exoplanet orbiting Kepler-20. It has a mass similar to Neptune but is slightly smaller. Despite being the third-closest planet to Kepler-20, it is still close to the star, meaning that it is a hot Neptune. Along with the other four planets in the system, Kepler-20c was announced on 20 December 2011.
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