Star profile
Azelfafage
Pi 1 Cygni · Cygnus
Hot blue starWhat is Azelfafage
Azelfafage is a hot blue star in Cygnus, whose name, from the Arabic «aẓ-ẓulfah», seems to refer to a tuft of feathers on the celestial bird's neck. At 1,726 light-years, it is among the most distant stars visible to the unaided eye on a dark night: the light defining it tonight set out around the third century, when the Roman Empire was still wrestling with crisis and reform, and no one on Earth yet spoke of «Cygnus».
Where it is and when to see it
Azelfafage lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is September: 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 Azelfafage
- Constellation
- Cygnus
- Apparent magnitude
- 4.69
- Distance
- 1725.9 light years
- Coordinates (J2000)
- RA 325.524° · Dec 51.190°
- Catalogue
- HIP 107136 · HD 206672
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Cygnus
Cygnus has 137 stars in Stelvia's catalogue. Here are a few of them.
- DenebAlpha Cygni1.25
- SadrGamma Cygni2.23
- AljanahEpsilon Cygni2.48
- 63 Cygni4.56
- 47 Cygni4.61
- Phi Cygni4.68
- 59 Cygni4.74
- 8 Cygni4.74