B-type star · blue-white star
Azelfafage
Azelfafage is a blue-white star in the constellation Cygnus 1,726 ly from Earth. Its surface is about 11,903 K, about 2.1 times the Sun's surface temperature, and it shines at 3,245× the Sun's brightness. At magnitude 4.7 it is bright enough to see with the naked eye; the light you see left it 1,726 years ago.
Also catalogued as Pi¹ Cyg · HR 8301 · HD 206672 · HIP 107136
11,903 K
temperature
4.69
apparent magnitude
3,245× ☉
luminosity vs Sun
B3IV
spectral type
Distance & comparison with our Sun
1,726 years
at light speed from Earth
2.06×
as hot as the Sun
3,245×
the Sun's light output
-3.93
absolute magnitude
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Nearest stars
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VISIBLE TO THE NAKED EYE
Star data from the HYG database v4.2 (Astronexus, CC BY-SA 4.0). Temperature and colour computed by gravityfinder from the B-V colour index; the illustration is generated from that temperature, not a photograph.