B-type star · blue-white star

78 Her

78 Her is a blue-white star in the constellation Hercules 268 ly from Earth. Its surface is about 10,138 K, about 1.8 times the Sun's surface temperature, and it shines at 31.92× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 268 years ago.

268 lybrightness mag 5.66A1V

Also catalogued as HR 6533 · HD 159139 · HIP 85790

10,138 K
temperature
5.66
apparent magnitude
31.92× ☉
luminosity vs Sun
A1V
spectral type
Distance & comparison with our Sun
268 years
at light speed from Earth
1.76×
as hot as the Sun
31.92×
the Sun's light output
1.09
absolute magnitude
Explore from here · roam the neighborhood
78 HerB-type
Sky regionHerculesthis direction
StarHR 665424 ly
Star79 Her26 ly
Star63 Her29 ly
StarKornephorosstar
StarRasalgethistar
Nearest stars
Bright stars in Hercules
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.7To see it no equipment neededLook toward Hercules

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.