KELT-2Ab is an extrasolar planet that orbits the star KELT-2A in the constellation Auriga around 440 light-years distant. It is an exoplanet in the form of a gas giant that orbits an F-type star. It has a mass of 1.7 Jupiters, takes 4.1 days to complete one orbit around its star, and is 0.05497 AU away from it. It was detected using the transit method by the KELT-North survey, hence its mass and radius are determined exactly.
It was discovered in 2012, and its finding was announced. KELT-2Ab is the fifth-brightest transiting Hot Jupiter with a well-constrained mass as of its discovery. As a result, the KELT-2A system is a viable candidate for future space- and ground-based follow-up investigations to learn more about the planet’s atmosphere.
KELT-2A b is an exoplanet that orbits the star KELT-2 A, which is 420.4 light-years (128.9 pc) from our Solar System. Its discovery was made public in 2012. KELT-2 A, the host star, has an apparent magnitude of 8.7 and an absolute magnitude of 3.1. It is 1.3 times more massive and 1.8 times larger than our Sun. The surface temperature is 6148 degrees Fahrenheit, and the spectral type is F7V.
KELT-1b, one of the newly discovered planets, is a giant globe that is both extremely hot and dense. The alien planet, which is primarily made of metallic hydrogen, is slightly larger than Jupiter but has 27 times the mass. KELT-1b is so near to its host star that it only takes 29 hours to complete one orbit. Being this close to its star, the planet’s surface temperature is likely above 4,000 degrees Fahrenheit (roughly 2,200 degrees Celsius), in the process receiving 6,000 times the amount of radiation that Earth receives from the sun.
KELT-1b is located in the constellation Andromeda, approximately 825 light-years distant. Astronomers were drawn to the enormous planet not just because of its close proximity to its parent star, but also because of its peculiar orbital characteristics.
The extrasolar planet KELT-2A b orbits the star KELT-2 A every 4.1 days at an orbital distance of 0.05 AU in this planetary system. In 2018, water vapour was identified in the planetary atmosphere. The star KELT-2A is a member of the binary star system KELT-2, which has common-property motion (HD 42176). KELT-2B is a 295 astronomical unit distant early K dwarf.
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