GJ 806 is 39.3 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this M1.5 V star; the first was found in 2023 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DGJ 806 b goes round its star every 22.2 hours, 95 times as often as Mercury goes round the Sun.
| Spectral type | M1.5 V |
| Surface temperature | 3,600 K |
| Mass | 0.413 solar masses |
| Radius | 0.4144 solar radii |
| Luminosity | 0.02598 times the Sun |
| Apparent magnitude | 10.79 |
| Age | about 5 billion years |
| Distance from the Sun | 39.3 light-years (12.0 parsecs) |
| Position (J2000) | RA 311.2697°, Dec 44.5002° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 806 b | 22.2 hours | 0.0141 AU | 1.331 R⊕ | 1.9 M⊕ | Transit, 2023 |
| GJ 806 c | 6.64 days | 0.0523 AU | 2.28 R⊕ estimated | 5.8 M⊕ minimum | Radial Velocity, 2023 |
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.