K-type star · orange
10 Her
10 Her is an orange in the constellation Hercules 682 ly from Earth. Its surface is about 3,765 K, about 0.7 times the Sun's surface temperature, and it shines at 193× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 682 years ago.
Also catalogued as HR 6039 · HD 145713 · HIP 79349
3,765 K
temperature
5.74
apparent magnitude
193× ☉
luminosity vs Sun
M4IIIa
spectral type
Distance & comparison with our Sun
682 years
at light speed from Earth
0.65×
as hot as the Sun
193×
the Sun's light output
-0.86
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.