Kepler-259 is 3,269 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,938 K star; the first was found in 2014 by transit (Kepler).
Fly there in 3DKepler-259 b goes round its star every 8.12 days, 11 times as often as Mercury goes round the Sun.
| Surface temperature | 5,938 K |
| Mass | 0.867 solar masses |
| Radius | 0.898 solar radii |
| Luminosity | 0.7035 times the Sun |
| Apparent magnitude | 15.378 |
| Age | about 0.4 billion years |
| Distance from the Sun | 3268.5 light-years (1002.1 parsecs) |
| Position (J2000) | RA 288.2120°, Dec 46.6150° |
| Constellation | Lyra |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-259 b | 8.12 days | 0.0790 AU | 2.8 R⊕ | 8.25 M⊕ estimated | Transit, 2014 |
| Kepler-259 c | 36.9 days | 0.217 AU | 2.7 R⊕ | 7.75 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.
For a star of 5,938 K, 0.70 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.79 to 1.39 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 3,269 years ago, around 1200 BC.