TOI-640 b

TOI-640 b is an exoplanet that was suspected since 2019.^[1] Its discovery has been confirmed by the TESS team in January 2021. It is located 1115 light years away from Earth, orbiting a primary F-class star^[2] in a binary star system with red dwarf^[3] and has an orbital period of 5 days.^[4][5]

TOI-640 b

Discovery
Discovery site	Transiting Exoplanet Survey Satellite
Discovery date	2021
Detection method	Transit
Orbital characteristics
Semi-major axis	0.06608+0.00098 −0.0011 AU
Eccentricity	0.050+0.054 −0.035
Orbital period (sidereal)	5.0037775±0.0000048 d
Inclination	82.54+0.42 −0.59 °
Physical characteristics
Mean radius	1.72±0.05 RJ
Mass	0.57±0.05 MJ
Mean density	0.138±0.013 g/cm³
Temperature	1,816 K (1,543 °C)

The planet orbits its host star nearly over poles, misalignment between the orbital plane and equatorial plane of the star been equal to 104±2°^[2]