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51 Pegasi b Facts for Kids. Kiddle Encyclopedia.
51 Pegasi b facts for kids
51 Pegasi b, also called Bellerephon or 51 Peg b, is the first extrasolar planet that was discovered orbiting a main-sequence star. It is 50 light years away from our Solar System in the constellation Pegasus. It is a gas giant that orbits around the star 51 Pegasi.