LHS 475 b
Description: LHS 475 b is a terrestrial planet orbiting the star LHS 475 which is about 40.7 light years away, in the constellation of Octans. It was the first extrasolar planet to be confirmed by the James Webb Space Telescope. It completes an orbit every 2 days and is 99% the diameter of Earth. It is also one of the most similar-to-Earth exoplanets discovered, in terms of radius.
Physical Properties
Mass (Jupiter mass): Unknown
Radius (Jupiter radius): 0.088 RJ
Density: 5.31 g/cm³
Equilibrium Temperature: 586.0 K
Orbital Parameters
Orbital Period: 2.029088 days
Semi-major Axis: 0.02037 AU
Eccentricity: Unknown
Inclination: 87.194°
Host Star Properties
Host Star: LHS 475
Spectral Type: M3.5 V
Temperature: 3300.0 K
Stellar Mass: 0.26 M☉
Stellar Radius: 0.28 R☉
Discovery Information
Planet Letter: b
Object ID: 3.13814
Host ID: 2.573693
Discovery Date: 2023-08
Discovery Year: 2023
Discovery Method: Transit
Discovery Locale: Space
Discovery Facility: Transiting Exoplanet Survey Satellite (TESS)
Discovery Instrument: TESS CCD Array