出典:Wikipedia
出典:『Wikipedia』 (2011/04/12 09:56 UTC 版)
Beta Delphini (Beta Del, β Delphini, β Del) is a binary star in the constellation of Delphinus. As a practical joke, the astronomer Niccolò Cacciatore gave it the name Rotanev, which is a reversal of his Latinized family name, Venator.