TRAPPIST-1 e
Description: TRAPPIST-1e, also designated as 2MASS J23062928-0502285 e, is a rocky, close-to-Earth-sized exoplanet orbiting within the habitable zone around the ultracool dwarf star TRAPPIST-1, located 40.7 light-years away from Earth in the constellation of Aquarius. Astronomers used the transit method to find the exoplanet, a method that measures the dimming of a star when a planet crosses in front of it.
Physical Properties
Mass (Jupiter mass): 0.00217727548815358 MJ
Radius (Jupiter radius): 0.082 RJ
Density: 4.901605 g/cm³
Equilibrium Temperature: 249.7 K
Orbital Parameters
Orbital Period: 6.101013 days
Semi-major Axis: 0.02925 AU
Eccentricity: 0.0051
Inclination: 89.793°
Host Star Properties
Host Star: TRAPPIST-1
Spectral Type: Unknown
Temperature: 2566.0 K
Stellar Mass: 0.09 M☉
Stellar Radius: 0.12 R☉
Discovery Information
Planet Letter: e
Object ID: 3.1199
Host ID: 2.103803
Discovery Date: 2016-05
Discovery Year: 2017
Discovery Method: Transit
Discovery Locale: Multiple Locales
Discovery Facility: Multiple Observatories
Discovery Instrument: Multiple Instruments