B-type star · blue-white star
30 Per
30 Per is a blue-white star in the constellation Perseus 731 ly from Earth. Its surface is about 10,941 K, about 1.9 times the Sun's surface temperature, and it shines at 279× the Sun's brightness. At magnitude 5.5 it is bright enough to see with the naked eye; the light you see left it 731 years ago.
Also catalogued as HR 982 · HD 20315 · HIP 15338
10,941 K
temperature
5.49
apparent magnitude
279× ☉
luminosity vs Sun
B8V...
spectral type
Distance & comparison with our Sun
731 years
at light speed from Earth
1.90×
as hot as the Sun
279×
the Sun's light output
-1.26
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.