K2-39 is 1,003 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 4,881 K star; the first was found in 2016 by transit (K2).
Fly there in 3DK2-39 b goes round its star every 4.61 days, 19 times as often as Mercury goes round the Sun.
| Surface temperature | 4,881 K |
| Mass | 0.66 solar masses |
| Radius | 2.97 solar radii |
| Luminosity | 4.722 times the Sun |
| Apparent magnitude | 10.831 |
| Age | about 6.7 billion years |
| Distance from the Sun | 1002.8 light-years (307.5 parsecs) |
| Position (J2000) | RA 338.3682°, Dec -9.0229° |
| Constellation | Aquarius |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-39 b | 4.61 days | 0.0571 AU | 6.277 R⊕ | 28.605 M⊕ | Transit, 2016 |
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.