Exoplanet Catalog
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The GJ 338 B planetary system

Distance (light-years)20.7
Spectral typeM0 V
Temperature (K)4,014
Mass (Sun = 1)0.64
PlanetMethodYearOrbital period (days)Radius (Earth = 1)Mass (Earth = 1)Equilibrium temperature (K)
GJ 338 B bRadial Velocity202024.423.2510.6391

Values are the archive’s composite parameters and may combine several publications; mass may be a minimum mass (M·sin i). “–” means no value in the archive.

The star

Spectral typeTemperature (K)Radius (Sun = 1)Mass (Sun = 1)
M0 V4,0140.580.64
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GJ 338 B is about 20.7 light-years from the Sun and has 1 confirmed planet(s).