Tags: Star.
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. The name first appeared in Giuseppe Piazzi’s Palermo Catalogue published in 1814. Beta Delphini was found to be a binary star system in 1873 by the American astronomer S. W.
