K2-187 is 1,079 light-years from the Sun. The NASA Exoplanet Archive lists 4 planets around this 5,438 K star; the first was found in 2018 by transit (K2).
Fly there in 3DK2-187 b goes round its star every 18.6 hours, 114 times as often as Mercury goes round the Sun.
| Surface temperature | 5,438 K |
| Mass | 0.966999 solar masses |
| Radius | 0.83 solar radii |
| Luminosity | 0.6367 times the Sun |
| Apparent magnitude | 13.102 |
| Distance from the Sun | 1079.3 light-years (330.9 parsecs) |
| Position (J2000) | RA 132.5236°, Dec 23.1925° |
| Constellation | Cancer |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-187 b | 18.6 hours | 0.0164 AU | 1.2 R⊕ | 1.87 M⊕ estimated | Transit, 2018 |
| K2-187 c | 2.87 days | 0.0392 AU | 1.4 R⊕ | 2.54 M⊕ estimated | Transit, 2018 |
| K2-187 d | 7.15 days | 0.0720 AU | 2.4 R⊕ | 6.35 M⊕ estimated | Transit, 2018 |
| K2-187 e | 13.6 days | 0.111 AU | 1.9 R⊕ | 4.27 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.