GJ 414 A b
Description: Gliese 414 Ab, also known as GJ 414 Ab, is a sub-Neptune exoplanet orbiting Gliese 414 A, an orange dwarf located 39 light-years from Earth, in the constellation Ursa Major. It is at least 7.6 times more massive than the Earth and is 3 times larger, having a diameter of 37600 km. It orbits its host star at a distance of 0.24 astronomical units (36,000,000 km), completing one revolution every 51 days. The distance of Gliese 414 A b from its star makes it to be located in the inner part of the optmistic habitable zone, and the planet has a equilibrium temperature of 35.5 °C.
Physical Properties
Mass (Jupiter mass): Unknown
Radius (Jupiter radius): 0.235 RJ
Density: 2.3 g/cm³
Equilibrium Temperature: 308.6 K
Orbital Parameters
Orbital Period: 50.8 days
Semi-major Axis: 0.2324 AU
Eccentricity: 0.45
Inclination: Unknown
Host Star Properties
Host Star: GJ 414 A
Spectral Type: K7 V
Temperature: 4120.0 K
Stellar Mass: 0.65 M☉
Stellar Radius: 0.68 R☉
Discovery Information
Planet Letter: b
Object ID: 3.12682
Host ID: 2.56336
Discovery Date: 2021-02
Discovery Year: 2021
Discovery Method: Radial Velocity
Discovery Locale: Ground
Discovery Facility: W. M. Keck Observatory
Discovery Instrument: HIRES Spectrometer