Kepler-539 is 1,002 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G2 V star; the first was found in 2016 by transit (Kepler).
Fly there in 3DKepler-539 c takes 2.7 years to go round its star once.
| Spectral type | G2 V |
| Surface temperature | 5,820 K |
| Mass | 1.048 solar masses |
| Radius | 0.952 solar radii |
| Luminosity | 0.87 times the Sun |
| Apparent magnitude | 12.444 |
| Age | about 0.91 billion years |
| Distance from the Sun | 1002.3 light-years (307.3 parsecs) |
| Position (J2000) | RA 299.1225°, Dec 41.8668° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-539 b | 125.6 days | 0.499 AU | 8.3731 R⊕ | 308.3 M⊕ | Transit, 2016 |
| Kepler-539 c | 2.7 years | 2.420 AU | 13.3 R⊕ estimated | 762.79 M⊕ | Transit Timing Variations, 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.