description Rotanev Overview
Rotanev, formally designated Beta Delphini, is the brightest star in the constellation Delphinus and a binary system of evolved F-type stars. The components orbit one another on a period of about 26.7 years and are too close to separate with the unaided eye, so the system appears as a single star of roughly fourth magnitude. Its unusual name first appeared in the Palermo Star Catalogue of 1814 and is “Venator” written backward. The companion star Sualocin, Alpha Delphini, was given a related reversed name.
help Rotanev FAQ
What is Rotanev's official astronomical designation?
Rotanev is formally designated Beta Delphini. It is the brightest star in the constellation Delphinus.
Is Rotanev one star or a binary system?
Rotanev is a binary system made up of two evolved F-type stars. The pair orbit one another, but they appear as a single point to the unaided eye.
How long does it take the two stars in Rotanev to orbit each other?
Their orbital period is about 26.7 years. The components are too close together to separate with unaided vision from Earth.
Where did the name Rotanev come from?
The name is associated with the Latinized name of astronomer Niccolò Cacciatore, which was written as Nicolaus Venator. Rotanev is Venator spelled backward, while the related star name Sualocin comes from Nicolaus reversed.
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