B-type star · blue-white star
HR 8546
HR 8546 is a blue-white star in the constellation Cepheus 257 ly from Earth. Its surface is about 10,516 K, about 1.8 times the Sun's surface temperature, and it shines at 42.03× the Sun's brightness. At magnitude 5.3 it is bright enough to see with the naked eye; the light you see left it 257 years ago.
Also catalogued as HD 212710 · HIP 109693
10,516 K
temperature
5.27
apparent magnitude
42.03× ☉
luminosity vs Sun
B9.5Vn
spectral type
Distance & comparison with our Sun
257 years
at light speed from Earth
1.82×
as hot as the Sun
42.03×
the Sun's light output
0.79
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.