B-type star · blue-white star
70 Her
70 Her is a blue-white star in the constellation Hercules 427 ly from Earth. Its surface is about 10,125 K, about 1.8 times the Sun's surface temperature, and it shines at 133× the Sun's brightness. At magnitude 5.1 it is bright enough to see with the naked eye; the light you see left it 427 years ago.
Also catalogued as HR 6457 · HD 157198 · HIP 84887
10,125 K
temperature
5.13
apparent magnitude
133× ☉
luminosity vs Sun
A2V
spectral type
Distance & comparison with our Sun
427 years
at light speed from Earth
1.75×
as hot as the Sun
133×
the Sun's light output
-0.46
absolute magnitude
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VISIBLE TO THE NAKED EYE
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.