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Hot-Neptune orbiting Kepler-20 From Wikipedia, the free encyclopedia
Kepler-20d is an exoplanet orbiting Kepler-20. It has a mass and radius similar to Neptune. Despite being the furthest planet from the star, it has an orbit similar to Mercury, meaning that it is a Hot Neptune. Along with the other four planets in the system, Kepler-20d was announced on December 20, 2011.
Discovery | |
---|---|
Discovered by | Kepler team |
Discovery date | 20 December 2011 |
Transit (Kepler Mission) | |
Orbital characteristics | |
0.3453 AU (51,660,000 km) | |
Eccentricity | <0.60 |
77.61184 d | |
Inclination | 89.570 |
Star | Kepler-20 (KOI-070) |
Physical characteristics | |
2.75+0.17 −0.30 R🜨 | |
Mass | <20.1 ME |
Mean density | <4.07 g cm−3 |
Temperature | 369 K (96 °C; 205 °F) |
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