GJ 3021 b
Description: GJ 3021 b, also known as Gliese 3021 b or HD 1237 b, is an extrasolar planet approximately 57 light-years away, orbiting its bright G-dwarf parent star in the Southern constellation of Hydrus. It was discovered with the Swiss Euler Telescope at the Chilean La Silla Observatory in 2000.
Physical Properties
Mass (Jupiter mass): Unknown
Radius (Jupiter radius): 1.17 RJ
Density: 2.62 g/cm³
Equilibrium Temperature: 350.0 K
Orbital Parameters
Orbital Period: 133.71 days
Semi-major Axis: 0.49 AU
Eccentricity: 0.511
Inclination: Unknown
Host Star Properties
Host Star: GJ 3021
Spectral Type: G6 V
Temperature: 5540.0 K
Stellar Mass: 0.9 M☉
Stellar Radius: 0.9 R☉
Discovery Information
Planet Letter: b
Object ID: 3.1097
Host ID: 2.53952
Discovery Date: 2001-08
Discovery Year: 2000
Discovery Method: Radial Velocity
Discovery Locale: Ground
Discovery Facility: La Silla Observatory
Discovery Instrument: CORALIE Spectrograph