The GJ 1002 System
GJ 1002 is a planetary system in the constellation Cetus hosting 2 confirmed exoplanets, about 16 light-years from Earth. 2 of its planets orbit within the habitable zone, where liquid water could exist on a planetary surface.
GJ 1002: Star and Habitable Zone
GJ 1002
- Spectral type
- M5.5 V
- Surface temperature
- 3,024 K (Sun: 5,772 K)
- Mass
- 0.12 M☉
- Radius
- 0.14 R☉
- Luminosity
- 0.0014 L☉
Habitable zone of GJ 1002: 0.031–0.082 AU (conservative: 0.039–0.078 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 1002 System
Discovery History
The first planet found here, GJ 1002 b, was discovered in 2022 using the radial velocity method.
Frequently Asked Questions About GJ 1002
How many planets does GJ 1002 have?
GJ 1002 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the GJ 1002 system habitable?
2 planets in the system orbit within the habitable zone, where liquid water could exist. Actual habitability depends on atmospheres and composition, which are not yet known.
How far away is GJ 1002?
GJ 1002 is about 16 light-years from Earth in the constellation Cetus.
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