A-type star · white star
HR 7646
HR 7646 is a white star in the constellation Cygnus 453 ly from Earth. Its surface is about 8,281 K, about 1.4 times the Sun's surface temperature, and it shines at 71.98× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye; the light you see left it 453 years ago.
Also catalogued as HD 189684 · HIP 98383
8,281 K
temperature
5.92
apparent magnitude
71.98× ☉
luminosity vs Sun
A5III
spectral type
Distance & comparison with our Sun
453 years
at light speed from Earth
1.43×
as hot as the Sun
71.98×
the Sun's light output
0.21
absolute magnitude
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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.