K2-12 is 1,065 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this F9 star; the first was found in 2015 by transit (K2).
Fly there in 3DK2-12 b goes round its star every 8.28 days, 11 times as often as Mercury goes round the Sun.
| Spectral type | F9 |
| Surface temperature | 5,672 K |
| Mass | 0.965 solar masses |
| Radius | 1.117 solar radii |
| Luminosity | 1.18 times the Sun |
| Apparent magnitude | 12.38 |
| Age | about 8.9 billion years |
| Distance from the Sun | 1064.5 light-years (326.4 parsecs) |
| Position (J2000) | RA 173.1919°, Dec 2.2447° |
| Constellation | Leo |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-12 b | 8.28 days | 0.0792 AU | 2.44 R⊕ | 5.2 M⊕ | Transit, 2015 |
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.