Kepler-237 is 2,146 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 4,861 K star; the first was found in 2014 by transit (Kepler).
Fly there in 3DKepler-237 b goes round its star every 4.72 days, 19 times as often as Mercury goes round the Sun.
| Surface temperature | 4,861 K |
| Mass | 0.696 solar masses |
| Radius | 0.725 solar radii |
| Luminosity | 0.3331 times the Sun |
| Apparent magnitude | 15.689 |
| Age | about 3.02 billion years |
| Distance from the Sun | 2145.5 light-years (657.8 parsecs) |
| Position (J2000) | RA 283.2213°, Dec 40.4218° |
| Constellation | Lyra |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-237 b | 4.72 days | 0.0500 AU | 1.41 R⊕ | 2.57 M⊕ estimated | Transit, 2014 |
| Kepler-237 c | 8.10 days | 0.0710 AU | 2.08 R⊕ | 4.98 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 4,861 K, 0.33 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.58 to 1.05 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 2,146 years ago, around 100 BC.