Kepler-249 is 621 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this M2 V star; the first was found in 2014 by transit (Kepler).
Fly there in 3DKepler-249 b goes round its star every 3.31 days, 27 times as often as Mercury goes round the Sun.
| Spectral type | M2 V |
| Surface temperature | 3,568 K |
| Mass | 0.510238 solar masses |
| Radius | 0.482 solar radii |
| Luminosity | 0.032 times the Sun |
| Apparent magnitude | 16.37 |
| Age | about 3.86 billion years |
| Distance from the Sun | 621.0 light-years (190.4 parsecs) |
| Position (J2000) | RA 296.9853°, Dec 43.6586° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-249 b | 3.31 days | 0.0350 AU | 1.09 R⊕ | 1.32 M⊕ estimated | Transit, 2014 |
| Kepler-249 c | 7.11 days | 0.0580 AU | 1.51 R⊕ | 2.89 M⊕ estimated | Transit, 2014 |
| Kepler-249 d | 15.4 days | 0.0970 AU | 1.57 R⊕ | 3.09 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 3,568 K, 0.032 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.19 to 0.36 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 621 years ago, around 1400.