B-type star · blue-white star

Omicron Her

Omicron Her is a blue-white star in the constellation Hercules 338 ly from Earth. Its surface is about 10,355 K, about 1.8 times the Sun's surface temperature, and it shines at 272× the Sun's brightness. At magnitude 3.8 it is bright enough to see with the naked eye; the light you see left it 338 years ago.

338 lybrightness mag 3.84B9.5V

Also catalogued as HR 6779 · HD 166014 · HIP 88794

10,355 K
temperature
3.84
apparent magnitude
272× ☉
luminosity vs Sun
B9.5V
spectral type
Distance & comparison with our Sun
338 years
at light speed from Earth
1.79×
as hot as the Sun
272×
the Sun's light output
-1.24
absolute magnitude
Explore from here · roam the neighborhood
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 3.8To 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.