B-type star · blue-white star

Epsilon Per

Epsilon Per is a blue-white star in the constellation Perseus 638 ly from Earth. Its surface is about 13,561 K, about 2.3 times the Sun's surface temperature, and it shines at 2,308× the Sun's brightness. At magnitude 2.9 it is bright enough to see with the naked eye; the light you see left it 638 years ago.

638 lybrightness mag 2.90B0.5V

Also catalogued as HR 1220 · HD 24760 · HIP 18532

13,561 K
temperature
2.90
apparent magnitude
2,308× ☉
luminosity vs Sun
B0.5V
spectral type
Distance & comparison with our Sun
638 years
at light speed from Earth
2.35×
as hot as the Sun
2,308×
the Sun's light output
-3.56
absolute magnitude
Explore from here · roam the neighborhood
Epsilon PerB-type
Sky regionPerseusthis direction
StarHR 109771 ly
StarHR 137183 ly
StarHR 97987 ly
StarMirfakstar
StarZeta Perstar
Nearest stars
Bright stars in Perseus
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 2.9To 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.