B-type star · blue-white star
4 Her
4 Her is a blue-white star in the constellation Hercules 536 ly from Earth. Its surface is about 11,607 K, about 2.0 times the Sun's surface temperature, and it shines at 120× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 536 years ago.
Also catalogued as HR 5938 · HD 142926 · HIP 77986
11,607 K
temperature
5.73
apparent magnitude
120× ☉
luminosity vs Sun
B9p
spectral type
Distance & comparison with our Sun
536 years
at light speed from Earth
2.01×
as hot as the Sun
120×
the Sun's light output
-0.35
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.