Gamma Cephei
Gamma Cephei (γ Cephei, abbreviated Gamma Cep, γ Cep) is a binary star system approximately 45 light-years away in the constellation of Cepheus. The primary (designated Gamma Cephei A, officially named Errai , the traditional name of the system) is a stellar class K1 orange giant or subgiant star; it has a red dwarf companion (Gamma Cephei B). An exoplanet (designated Gamma Cephei Ab, later named Tadmor) has been confirmed to be orbiting the primary.

Gamma Cephei is the naked-eye star that will succeed Polaris as the Earth's northern pole star, due to the precession of the equinoxes. It will be closer to the northern celestial pole than Polaris around 3000 CE and will make its closest approach around 4000 CE. The 'title' will pass to Iota Cephei some time around 5200 CE.
Q50053
binary star system
Concept
Q531
light-year
Concept
Q8928
constellation
Concept
Q10468
Cepheus
CEL
Q25377588
stellar class
Concept
Q5875
giant
Concept
Q6227
subgiant
Concept
Q5893
red dwarf
Concept
Q44559
exoplanet
Concept
Q429779
Gamma Cephei Ab
CEL
Q12980
Polaris
CEL
Q662656
pole star
CEL
Q83094
precession of the equinoxes
Concept
Q12119
celestial pole
UNK
Q551908
Iota Cephei
CEL
Q472374
5200
UNK
Q13265
Gamma Cephei
CEL
Q13265
Gamma Cephei
CEL
Q13265
Gamma Cephei
CEL
Q13265
Gamma Cephei
CEL
3000-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
3000
DATE
4000-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
4000
DATE
5200-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
5200
DATE
+45^^http://www.w3.org/2001/XMLSchema#decimal
45
NUMBER
+1^^http://www.w3.org/2001/XMLSchema#decimal
1
NUMBER
constellation
parent astronomical body
instance of
subclass of
instance of
instance of