Star · M1.5 V
GJ 806
GJ 806 is a main-sequence star of spectral type M1.5 V in the constellation Cygnus, 39.3 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | Gl 806 · HIP 102401 |
|---|---|
| Constellation | Cygnus |
| Distance | 39.3 light-years (12.1 pc) |
| Apparent magnitude | magnitude 10.79 |
| Absolute magnitude | magnitude 10.38 |
| Spectral type | M1.5 V |
| Surface temperature | 3,600 K |
| Luminosity | 0.026 L☉ |
| Radius | 0.414 R☉ |
| Mass | 0.413 M☉ |
| Age | 5.0 billion years |
| Metallicity [Fe/H] | -0.28 |
| Right ascension (J2000) | 20h 45m 04.1s |
| Declination (J2000) | +44° 29′ 57″ |
| Space velocity (relative to the Sun) | 38.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.79. Visible from the whole Northern Hemisphere and south to latitude 46° S. North of latitude 46° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1987. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 698 thousand years.
The Sun seen from there
From a planet around GJ 806, the Sun would look like a star of magnitude 5.24, in the direction where our sky has the constellation Vela. It would be visible to the naked eye.
Planets
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.