Kepler-20f
Kepler-20f (also known by its Kepler Object of Interest designation KOI-070.05) is an exoplanet orbiting the Sun-like star Kepler-20, the second outermost of five such planets discovered by NASA's Kepler spacecraft. It is located approximately 929 light-years (285 parsecs, or about 8.988×1015 km) from Earth in the constellation Lyra. The exoplanet was found by using the transit method, in which the dimming effect that a planet causes as it crosses in front of its star is measured. The planet is notable as it has the closest radius to Earth known so far.
An artist's depiction of Kepler-20f. | |
| Discovery | |
|---|---|
| Discovered by | Kepler team |
| Discovery date | 20 December 2011 |
| Transit (Kepler Mission) | |
| Orbital characteristics | |
| 0.1104 AU (16,520,000 km) | |
| Eccentricity | <0.32 |
| 19.57706 d | |
| Inclination | 88.68+0.17 −0.14 |
| Star | Kepler-20 (KOI-070) |
| Physical characteristics | |
Mean radius | 1.003+0.050 −0.089 R🜨 |
| Mass | ~1 ME |
| Temperature | 705 K (432 °C; 809 °F) |
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