The GJ 806 System
GJ 806 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 39 light-years from Earth.
Size Comparison: The Planets of GJ 806
Planets without a measured radius are not shown.
GJ 806: Star and Habitable Zone
GJ 806
- Spectral type
- M1.5 V
- Surface temperature
- 3,600 K (Sun: 5,772 K)
- Mass
- 0.41 M☉
- Radius
- 0.41 R☉
- Luminosity
- 0.0260 L☉
- Age
- 5.0 billion years (Sun: 4.6)
Habitable zone of GJ 806: 0.132–0.340 AU (conservative: 0.167–0.322 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
All 2 Planets in the GJ 806 System
Discovery History
The first planet found here, GJ 806 b, was discovered in 2023 using the transit method.
Frequently Asked Questions About GJ 806
How many planets does GJ 806 have?
GJ 806 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the GJ 806 system habitable?
None of the known planets in GJ 806 orbit within the star's habitable zone.
How far away is GJ 806?
GJ 806 is about 39 light-years from Earth in the constellation Cygnus.
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