K2-10 is 888 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 3DK2-10 b goes round its star every 19.3 days, 5 times as often as Mercury goes round the Sun.
| Spectral type | F9 |
| Surface temperature | 5,533 K |
| Mass | 0.88 solar masses |
| Radius | 0.956 solar radii |
| Luminosity | 0.7927 times the Sun |
| Apparent magnitude | 12.429 |
| Distance from the Sun | 888.3 light-years (272.4 parsecs) |
| Position (J2000) | RA 172.1216°, Dec 1.6906° |
| Constellation | Leo |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-10 b | 19.3 days | 0.137 AU | 3.773 R⊕ | 25.2 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.
For a star of 5,533 K, 0.79 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.86 to 1.52 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.
The light you see left 888 years ago, around 1140.