B-type star · blue-white star

1 Per

1 Per is a blue-white star in the constellation Perseus 1,294 ly from Earth. Its surface is about 13,011 K, about 2.3 times the Sun's surface temperature, and it shines at 842× the Sun's brightness. At magnitude 5.5 it is bright enough to see with the naked eye; the light you see left it 1,294 years ago.

1,294 lybrightness mag 5.53B1.5V

Also catalogued as HR 533 · HD 11241 · HIP 8704

13,011 K
temperature
5.53
apparent magnitude
842× ☉
luminosity vs Sun
B1.5V
spectral type
Distance & comparison with our Sun
1,294 years
at light speed from Earth
2.25×
as hot as the Sun
842×
the Sun's light output
-2.46
absolute magnitude
Explore from here · roam the neighborhood
1 PerB-type
Sky regionPerseusthis direction
StarHD 7733190 ly
StarHR 488220 ly
StarHR 792240 ly
StarMirfakstar
StarZeta Perstar
Nearest stars
Bright stars in Perseus
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.5To see it no equipment neededLook toward Perseus

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.