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2MASS J19383260+4603591 (Also known as Kepler-451) is a binary star system with at least one known planet, Kepler-451b. The system comprises two stars, a subdwarf B-type star as well as a small red dwarf star.
Planetary system
It has at least one confirmed exoplanet, 2MASS J19383260+4603591 b, discovered in 2015 by the Kepler spacecraft.
References
2MASS J19383260+4603591 Wikipedia(Text) CC BY-SA