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This is the list of notable stars in the constellation Cepheus, sorted by decreasing brightness. Name B F Var HD HIP RA Dec vis. mag. abs. mag. Dist. Sp. class Notes
Cepheus is a constellation in the deep northern sky, named after Cepheus, a king of Aethiopia in Greek mythology. It is one of the 48 constellations listed by the second century astronomer Ptolemy, and it remains one of the 88 constellations in the modern times. The constellation's brightest star is Alpha Cephei, with an apparent magnitude of 2.5.
Zeta Cephei has a spectral classification of K1.5Ib, [3] indicating that it is a lower luminosity red supergiant star. It is about 173 times larger than the Sun and has a surface temperature of 4,393 K. [8] The luminosity of Zeta Cephei is approximately 10,000 times that of the Sun. [8] At a distance of about 840 light-years, [11] Zeta Cephei has an apparent magnitude (m) of 3.4 and an ...
11 Cephei is a single [8] star in the northern constellation of Cepheus, [7] located 184 light years away from the Sun. [1] It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.55. [2] The star has a relatively high proper motion, traversing the celestial sphere at the rate of 0.153 arc seconds per ...
W Cephei is a spectroscopic binary and variable star located in the constellation Cepheus. It is thought to be a member of the Cep OB1 stellar association at about 8,000 light years. [5] [11] The supergiant primary star is one of the largest known stars and as well as one of the most luminous red supergiants.
Despite this, its size is far from the two known hypergiants in this constellation, Me Cephei and VV Cephei. [1] [3] [4] The bolometric luminosity of ST Cephei is 8,400 times greater than that of the Sun. It has a mass 9 times greater than the Sun, at the limit from which stars end their lives by exploding as supernovae.
Xi Cephei (ξ Cephei, abbreviated Xi Cep, ξ Cep) is a multiple star system in the constellation of Cepheus.It is approximately 86 light-years from Earth. [6]It consists of two binary stars, designated Xi Cephei A and B, together with a more distant companion, Xi Cephei C.
Eta Cephei (η Cep, η Cephei) is a star in the northern circumpolar constellation of Cepheus. With an apparent visual magnitude of 3.4, [2] this is a third magnitude star that, according to the Bortle Dark-Sky Scale, is readily visible to the naked eye. Parallax measurements put it at a distance of 14.37 parsecs (46.9 light-years) from Earth. [1]