Kepler-258 is 1,879 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 4,942 K star; the first was found in 2014 by transit (Kepler).
Fly there in 3DKepler-258 b goes round its star every 13.2 days, 7 times as often as Mercury goes round the Sun.
| Surface temperature | 4,942 K |
| Mass | 0.82 solar masses |
| Radius | 0.915 solar radii |
| Luminosity | 0.2658 times the Sun |
| Apparent magnitude | 15.49 |
| Age | about 13.7 billion years |
| Distance from the Sun | 1878.6 light-years (576.0 parsecs) |
| Position (J2000) | RA 294.0684°, Dec 46.5791° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-258 b | 13.2 days | 0.103 AU | 4.06 R⊕ | 15.5 M⊕ estimated | Transit, 2014 |
| Kepler-258 c | 33.7 days | 0.193 AU | 3.61 R⊕ | 12.7 M⊕ estimated | Transit, 2014 |
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.