Star profile
Zeta Cepheus
Variable starWhat is Zeta Cepheus
Zeta Cephei is an orange supergiant, cold and immense, whose light sets out more than eight centuries before reaching us. Its brightness barely shifts, like the slow breath of something too large to beat quickly. In the constellation that evokes an Ethiopian king, it occupies one of the throne's most stable seats —that of sustained glow, not fleeting flash.
Where it is and when to see it
Zeta Cepheus lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is October: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.
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The signature wall
Stelvia's sky works like a signature wall: anyone can leave their name and a message on a real star, and that signature goes up on the map for everyone to read. Signing is free.
A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works
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A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.
Astronomical data for Zeta Cepheus
- Constellation
- Cepheus
- Apparent magnitude
- 3.39
- Distance
- 836.4 light years
- Coordinates (J2000)
- RA 332.714° · Dec 58.201°
- Catalogue
- HIP 109492 · HD 210745
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Cepheus
Cepheus has 95 stars in Stelvia's catalogue. Here are a few of them.
- AlderaminAlpha Cepheus2.45
- ErraiGamma Cepheus3.21
- AlfirkBeta Cepheus3.23
- Eta Cepheus3.41
- Iota Cepheus3.50
- Delta Cepheus4.07
- Epsilon Cepheus4.18
- Theta Cepheus4.21