K2-254 is 743 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 4,629 K star; the first was found in 2018 by transit (K2).
Fly there in 3DK2-254 b goes round its star every 4.10 days, 21 times as often as Mercury goes round the Sun.
| Surface temperature | 4,629 K |
| Mass | 0.71 solar masses |
| Radius | 0.67 solar radii |
| Luminosity | 0.1505 times the Sun |
| Apparent magnitude | 14.238 |
| Distance from the Sun | 742.9 light-years (227.8 parsecs) |
| Position (J2000) | RA 185.5508°, Dec -4.7173° |
| Constellation | Virgo |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-254 b | 4.10 days | 0.0448 AU | 1.63 R⊕ | 3.29 M⊕ estimated | Transit, 2018 |
| K2-254 c | 12.1 days | 0.0923 AU | 2.19 R⊕ | 5.43 M⊕ estimated | Transit, 2018 |
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.