Kepler-129 is 1,334 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this G4 V star; the first was found in 2014 by transit (Kepler).
Fly there in 3DKepler-129 b goes round its star every 15.8 days, 6 times as often as Mercury goes round the Sun.
| Spectral type | G4 V |
| Surface temperature | 5,770 K |
| Mass | 1.178 solar masses |
| Radius | 1.653 solar radii |
| Luminosity | 2.908 times the Sun |
| Apparent magnitude | 11.809 |
| Age | about 6.43 billion years |
| Distance from the Sun | 1333.5 light-years (408.9 parsecs) |
| Position (J2000) | RA 285.3112°, Dec 47.8485° |
| Constellation | Draco |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-129 b | 15.8 days | 0.130 AU | 2.4 R⊕ | 20 M⊕ minimum | Transit, 2014 |
| Kepler-129 c | 82.2 days | 0.390 AU | 2.52 R⊕ | 43 M⊕ | Transit, 2014 |
| Kepler-129 d | 7.2 years | 4.000 AU | 12.6 R⊕ estimated | 2638 M⊕ minimum | Radial Velocity, 2021 |
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 5,770 K, 2.9 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.62 to 2.86 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 1,334 years ago, around AD 690.