The Errai or Gamma Cephei binary system is located about 45.0 light-years from Sol.
Gamma Cephei is Er Rai (Shepherd). Long before Aldemarin becomes the Pole Star, this one will assume that title (around 4000 AD).
[2322] gamma Cephei, also known as Errai, Alrai or Er Rai ("shepherd") is a binary star about 45 light-years distant. Its primary component is an orange subgiant star believed to be 6.6 billion years old.
Edasich (Iota Draconis) is but one of two planet-hosting stars that have proper names, the other Errai (Gamma Cephei). "Edasich" is a corruption of an Arabic term that means "the male hyena.
The discovery of planets orbiting other star systems, including similar binary systems (Gamma Cephei), raises the possibility that planets may exist in the Alpha Centauri system.
Since the 1988 discovery of Gamma Cephei Ab, a number of confirmed discoveries have been made of planets orbiting stars other than the Sun.
Their radial-velocity observations suggested the presence of a planet orbiting the star Gamma Cephei (also known as Alrai).
Errai (Gamma Cephei) is a third-magnitude orange subgiant star that will become the Earth's north polar star in 2,000 years. Cepheus is next to the constellations Andromeda and Perseus.
 See also: Star, Sky, Orbit, Constellation, Light
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