K2-31 is 360 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G7 V star; the first was found in 2016 by transit (K2).
Fly there in 3DK2-31 b goes round its star every 30.2 hours, 70 times as often as Mercury goes round the Sun.
K2-31 is one of 2 stars in its system. The position of the other star is not catalogued, so only K2-31 and its planets are drawn.
| Spectral type | G7 V |
| Surface temperature | 5,280 K |
| Mass | 0.91 solar masses |
| Radius | 0.78 solar radii |
| Luminosity | 0.7757 times the Sun |
| Apparent magnitude | 10.802 |
| Distance from the Sun | 360.5 light-years (110.5 parsecs) |
| Position (J2000) | RA 245.4406°, Dec -23.5483° |
| Constellation | Scorpius |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-31 b | 30.2 hours | 0.0220 AU | 11.882 R⊕ | 563.83 M⊕ | Transit, 2016 |
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 5,280 K, 0.78 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 1.54 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 360 years ago, around 1670.