Gamma Cephei

+Gamma Cephei, also known as Errai, is a binary star system located in the northern constellation [Cepheus](/wiki/Cepheus). Its primary star is orbited by one of the first confirmed [Exoplanets](/wiki/Exoplanet), Gamma Cephei Ab, a gas giant.

+## See also

+- [Binary Star](/wiki/Binary_Star)

+- [Star System](/wiki/Star_System)

+- [Constellation](/wiki/Constellation)