B-type star · blue-white star
HR 8158
HR 8158 is a blue-white star in the constellation Vulpecula 760 ly from Earth. Its surface is about 11,675 K, about 2.0 times the Sun's surface temperature, and it shines at 144× the Sun's brightness. At magnitude 6.3 it is within reach of 50 mm binoculars; the light you see left it 760 years ago.
Also catalogued as HD 203206 · HIP 105344
11,675 K
temperature
6.29
apparent magnitude
144× ☉
luminosity vs Sun
B6IV
spectral type
Distance & comparison with our Sun
760 years
at light speed from Earth
2.02×
as hot as the Sun
144×
the Sun's light output
-0.55
absolute magnitude
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BINOCULARS NEEDED
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.