K2-229b
K2-229b (previously designated EPIC 228801451.01) is an extremely hot, solid, iron-rich exoplanet in a close orbit around the active K-dwarf K2-229 in the constellation Virgo, 335 light years away from Earth.
| Discovery | |
|---|---|
| Discovery site | Kepler Space Observatory |
| Discovery date | 2018 |
Detection method | Transit |
| Orbital characteristics | |
Semi-major axis | 0.012888 (± 0.000130) AU |
| Eccentricity | 0 |
Orbital period (sidereal) | 0.584249 (± 0.000014) d 14.02 h |
| Inclination | 83.9 (± 2.8) |
| Star | K2-229 |
| Physical characteristics | |
Mean radius | 1.164±0.066 R🜨 |
| Mass | 2.59±0.43 ME |
Mean density | 8.9±2.1 g cm−3 |
Surface gravity | 1.91 +0.59 −0.48 g |
| Temperature | 1,960 K (1,690 °C; 3,070 °F) (equilibrium) 2,332 K (2,059 °C; 3,738 °F) (day side) |
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