Kepler-305 is 2,833 light-years from the Sun. The NASA Exoplanet Archive lists 4 planets around this 5,080 K star; the first was found in 2013 by transit (Kepler).
Fly there in 3DKepler-305 e goes round its star every 3.21 days, 27 times as often as Mercury goes round the Sun.
| Surface temperature | 5,080 K |
| Mass | 0.76 solar masses |
| Radius | 0.8 solar radii |
| Luminosity | 0.3774 times the Sun |
| Apparent magnitude | 15.851 |
| Age | about 4.37 billion years |
| Distance from the Sun | 2832.6 light-years (868.5 parsecs) |
| Position (J2000) | RA 299.2243°, Dec 40.3432° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-305 e | 3.21 days | 0.0402 AU | 1.7938 R⊕ | 3.87 M⊕ estimated | Transit, 2020 |
| Kepler-305 b | 5.49 days | 0.0575 AU | 3.6 R⊕ | 10.5 M⊕ | Transit, 2013 |
| Kepler-305 c | 8.29 days | 0.0757 AU | 3.3 R⊕ | 6 M⊕ | Transit, 2013 |
| Kepler-305 d | 16.7 days | 0.121 AU | 2.76 R⊕ | 6.2 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 5,080 K, 0.38 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.61 to 1.10 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 2,833 years ago, around 800 BC.