B-type star · blue-white star
11 Per
11 Per is a blue-white star in the constellation Perseus 431 ly from Earth. Its surface is about 11,744 K, about 2.0 times the Sun's surface temperature, and it shines at 75.65× the Sun's brightness. At magnitude 5.8 it is bright enough to see with the naked eye; the light you see left it 431 years ago.
Also catalogued as HR 785 · HD 16727 · HIP 12692
11,744 K
temperature
5.76
apparent magnitude
75.65× ☉
luminosity vs Sun
B7IIIp...
spectral type
Distance & comparison with our Sun
431 years
at light speed from Earth
2.03×
as hot as the Sun
75.65×
the Sun's light output
0.15
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.