Kepler-1802 is 2,077 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 4,245 K star; the first was found in 2021 by transit (Kepler).
Fly there in 3DKepler-1802 b goes round its star every 15.5 days, 6 times as often as Mercury goes round the Sun.
| Surface temperature | 4,245 K |
| Mass | 0.649 solar masses |
| Radius | 0.637 solar radii |
| Luminosity | 0.1189 times the Sun |
| Apparent magnitude | 15.905 |
| Age | about 13.9 billion years |
| Distance from the Sun | 2076.6 light-years (636.7 parsecs) |
| Position (J2000) | RA 300.2421°, Dec 44.1413° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-1802 b | 15.5 days | 0.0662 AU | 1.671 R⊕ | 3.43 M⊕ estimated | Transit, 2021 |
| Kepler-1802 c | 33.1 days | 0.175 AU | 2.322 R⊕ | 6 M⊕ estimated | Transit, 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 4,245 K, 0.12 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.35 to 0.66 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 2,077 years ago, around 100 BC.