TOI-677 b (TOI-677b) is a warm super-Jupiter type exoplanet orbiting the F-type main sequence star TOI-677 in the constellation ofOphiuchus[2] about 466 ly (143 pc) away from Earth.[3][4][5] The mass of the planet has been found to be 1.252 Jupiter masses and the radius of the planet is 1.179 Jupiter radii. It has a temperature of 1,252 K (979 °C; 1,794 °F). It orbits the star once every 11.24 days in an eccentric orbit (e=0.435).[1] The eccentricity of TOI-677b is possibly due to interactions between the protoplanetary disk and the planet itself. It the claims of an outer brown dwarf object in the TOI-677 system are true, then the brown dwarf may have had a role in the planets high eccentricity.[6]
It is part of a emerging class of exoplanets called tidally detached gas giants that exhibits high eccentricities but low stellar obliquity. It is also part of a class of planetary systems with eccentric super-Jupiters orbiting stars hotter than 6100 Kelvin.[6]
