Kepler-117 is 4,747 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this F8 V star; the first was found in 2014 by transit (Kepler).
Fly there in 3DKepler-117 b goes round its star every 18.8 days, 5 times as often as Mercury goes round the Sun.
| Spectral type | F8 V |
| Surface temperature | 6,150 K |
| Mass | 1.129 solar masses |
| Radius | 1.606 solar radii |
| Luminosity | 3.45 times the Sun |
| Apparent magnitude | 14.282 |
| Age | about 5.3 billion years |
| Distance from the Sun | 4747.4 light-years (1455.6 parsecs) |
| Position (J2000) | RA 288.7931°, Dec 48.0402° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-117 b | 18.8 days | 0.144 AU | 8.059 R⊕ | 29.875 M⊕ | Transit, 2014 |
| Kepler-117 c | 50.8 days | 0.280 AU | 12.341 R⊕ | 584.78 M⊕ | 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 6,150 K, 3.5 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.73 to 3.02 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 4,747 years ago, around 2700 BC.