K2-137 is 322 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M3 V star; the first was found in 2017 by transit (K2).
Fly there in 3DK2-137 b goes round its star every 4.3 hours, 490 times as often as Mercury goes round the Sun.
| Spectral type | M3 V |
| Surface temperature | 3,697 K |
| Mass | 0.463 solar masses |
| Radius | 0.29 solar radii |
| Luminosity | 0.03282 times the Sun |
| Apparent magnitude | 15.94 |
| Distance from the Sun | 322.5 light-years (98.9 parsecs) |
| Position (J2000) | RA 186.8704°, Dec -6.1952° |
| Constellation | Virgo |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-137 b | 4.3 hours | 0.0058 AU | 0.64 R⊕ | 158.91 M⊕ | Transit, 2017 |
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.