TOI-677 b (TOI-677b) is a warmsuper-Jupiter typeexoplanet orbiting the F-type main sequence starTOI-677 in theconstellation ofOphiuchus[2] about 466 ly (143 pc) away fromEarth.[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 theprotoplanetary disk and the planet itself. If the claims of an outerbrown dwarf object in theTOI-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 ofexoplanets called tidally detached gas giants that exhibits high eccentricities but low stellarobliquity. It is also part of a class of planetary systems with eccentricsuper-Jupiters orbitingstars hotter than 6100 Kelvin.[6]
