A-type star · white star
73 Her
73 Her is a white star in the constellation Hercules 139 ly from Earth. Its surface is about 7,945 K, about 1.4 times the Sun's surface temperature, and it shines at 8.33× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 139 years ago.
Also catalogued as HR 6480 · HD 157728 · HIP 85157
7,945 K
temperature
5.70
apparent magnitude
8.33× ☉
luminosity vs Sun
F0IV
spectral type
Distance & comparison with our Sun
139 years
at light speed from Earth
1.38×
as hot as the Sun
8.33×
the Sun's light output
2.55
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.