Kepler-20 is 922 light-years from the Sun. The NASA Exoplanet Archive lists 6 planets around this 5,495 K star; the first was found in 2011 by transit (Kepler).
Fly there in 3DKepler-20 b goes round its star every 3.70 days, 24 times as often as Mercury goes round the Sun.
Kepler-20 is one of 2 stars in its system. The position of the other star is not catalogued, so only Kepler-20 and its planets are drawn.
| Surface temperature | 5,495 K |
| Mass | 0.929 solar masses |
| Radius | 0.9164 solar radii |
| Luminosity | 0.6847 times the Sun |
| Apparent magnitude | 12.61 |
| Age | about 5.6 billion years |
| Distance from the Sun | 921.6 light-years (282.6 parsecs) |
| Position (J2000) | RA 287.6980°, Dec 42.3386° |
| Constellation | Lyra |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-20 b | 3.70 days | 0.0457 AU | 1.773 R⊕ | 9.7 M⊕ | Transit, 2011 |
| Kepler-20 e | 6.10 days | 0.0637 AU | 0.821 R⊕ | 0.76 M⊕ | Transit, 2011 |
| Kepler-20 c | 10.9 days | 0.0936 AU | 2.894 R⊕ | 11.1 M⊕ | Transit, 2011 |
| Kepler-20 f | 19.6 days | 0.139 AU | 0.952 R⊕ | 1.4 M⊕ | Transit, 2011 |
| Kepler-20 g | 34.9 days | 0.205 AU | 4.71 R⊕ estimated | 19.96 M⊕ minimum | Radial Velocity, 2016 |
| Kepler-20 d | 77.6 days | 0.347 AU | 2.606 R⊕ | 13.4 M⊕ | Transit, 2011 |
Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.