Jisho

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(惑星)
Wikipedia definition
1. 51 Pegasi b51 Pegasi b (abbreviated 51 Peg b), sometimes though unofficially named Bellerophon, is an extrasolar planet approximately 50 light-years away in the constellation of Pegasus. 51 Pegasi b was the first planet to be discovered orbiting a main sequence star, the Sun-like 51 Pegasi (the first exoplanets at all were discovered in 1992 by Aleksander Wolszczan around pulsar PSR 1257), and marked a breakthrough in astronomical research. It is the prototype for a class of planets called hot Jupiters.
Read “51 Pegasi b” on English Wikipedia
Read “ベレロフォン (惑星)” on Japanese Wikipedia
Read “51 Pegasi b” on DBpedia

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