User:21.Andromedae/TOI-2109 b

TOI-2109b is an exoplanet orbiting the star F-type star TOI-2109. The planet is an ultra-short period planet, completing one orbit around its star every around 16 hours. Due to the extreme proximity from its star, the planet is extremly hot, having a daytime temperature measured at $3,631 K$, which is hotter than the surface temperature of Betelgeuse, and makes it the second-hottest known exoplanet. The planet has a mass of 5.02 and a radius of 1.35, which makes it a gas giant. The planet was discovered in 2021, by the Transiting Exoplanet Survey Satellite. Its host star is TOI-2109, a F-type star that is about 1.45 times more massive than the Sun, 4.7 times more luminous and has an effective temperature of 6530K, which is hotter than the Sun. The star, and the planet are located around 860 light-years away, in the constellation Hercules.