F-type star · yellow-white star
Mirfak
Mirfak is a yellow-white star in the constellation Perseus 506 ly from Earth. Its surface is about 6,476 K, about 1.1 times the Sun's surface temperature, and it shines at 4,040× the Sun's brightness. At magnitude 1.8 it is bright enough to see with the naked eye; the light you see left it 506 years ago.
Also catalogued as Alpha Per · HR 1017 · HD 20902 · HIP 15863
6,476 K
temperature
1.79
apparent magnitude
4,040× ☉
luminosity vs Sun
F5Ib
spectral type
Distance & comparison with our Sun
506 years
at light speed from Earth
1.12×
as hot as the Sun
4,040×
the Sun's light output
-4.17
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.