F-type star · yellow-white star
39 Her
39 Her is a yellow-white star in the constellation Hercules 143 ly from Earth. Its surface is about 6,870 K, about 1.2 times the Sun's surface temperature, and it shines at 7.14× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye; the light you see left it 143 years ago.
Also catalogued as HR 6213 · HD 150682 · HIP 81729
6,870 K
temperature
5.92
apparent magnitude
7.14× ☉
luminosity vs Sun
F2III
spectral type
Distance & comparison with our Sun
143 years
at light speed from Earth
1.19×
as hot as the Sun
7.14×
the Sun's light output
2.71
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.