Kepler-1129 is 3,861 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,831 K star; the first was found in 2016 by transit (Kepler).
Fly there in 3DKepler-1129 b goes round its star every 24.3 days, 4 times as often as Mercury goes round the Sun.
| Surface temperature | 5,831 K |
| Mass | 1 solar masses |
| Radius | 1 solar radii |
| Luminosity | 0.9389 times the Sun |
| Apparent magnitude | 15.661 |
| Age | about 4.07 billion years |
| Distance from the Sun | 3861.3 light-years (1183.9 parsecs) |
| Position (J2000) | RA 291.6045°, Dec 41.3093° |
| Constellation | Lyra |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-1129 b | 24.3 days | 0.165 AU | 2.96 R⊕ | 9.06 M⊕ estimated | Transit, 2016 |
| Kepler-1129 c | 76.5 days | 0.354 AU | 2.73 R⊕ | 7.9 M⊕ estimated | 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.
For a star of 5,831 K, 0.94 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.92 to 1.62 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 3,861 years ago, around 1800 BC.