The GJ 328 System
GJ 328 is a planetary system in the constellation Hydra hosting 2 confirmed exoplanets, about 67 light-years from Earth.
GJ 328: Star and Habitable Zone
GJ 328
- Spectral type
- M0.0
- Surface temperature
- 3,897 K (Sun: 5,772 K)
- Mass
- 0.65 M☉
- Radius
- 0.63 R☉
- Luminosity
- 0.0832 L☉
Habitable zone of GJ 328: 0.234–0.596 AU (conservative: 0.297–0.565 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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All 2 Planets in the GJ 328 System
Discovery History
The first planet found here, GJ 328 b, was discovered in 2013 using the radial velocity method. The most recent addition, GJ 328 c, followed in 2023.
Frequently Asked Questions About GJ 328
How many planets does GJ 328 have?
GJ 328 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the GJ 328 system habitable?
None of the known planets in GJ 328 orbit within the star's habitable zone.
How far away is GJ 328?
GJ 328 is about 67 light-years from Earth in the constellation Hydra.
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