B-type star · blue-white star

34 Per

34 Per is a blue-white star in the constellation Perseus 539 ly from Earth. Its surface is about 11,506 K, about 2.0 times the Sun's surface temperature, and it shines at 322× the Sun's brightness. At magnitude 4.7 it is bright enough to see with the naked eye; the light you see left it 539 years ago.

539 lybrightness mag 4.67B3V

Also catalogued as HR 1044 · HD 21428 · HIP 16244

11,506 K
temperature
4.67
apparent magnitude
322× ☉
luminosity vs Sun
B3V
spectral type
Distance & comparison with our Sun
539 years
at light speed from Earth
1.99×
as hot as the Sun
322×
the Sun's light output
-1.42
absolute magnitude
Explore from here · roam the neighborhood
34 PerB-type
Sky regionPerseusthis direction
StarHR 101110 ly
StarHR 103715 ly
StarHR 103415 ly
StarZeta Perstar
StarEpsilon Perstar
Nearest stars
Bright stars in Perseus
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 4.7To 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.