K-type star · orange
HR 6728
HR 6728 is an orange in the constellation Hercules 572 ly from Earth. Its surface is about 3,703 K, about 0.6 times the Sun's surface temperature, and it shines at 142× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 572 years ago.
Also catalogued as HD 164646 · HIP 88122
3,703 K
temperature
5.69
apparent magnitude
142× ☉
luminosity vs Sun
M0III
spectral type
Distance & comparison with our Sun
572 years
at light speed from Earth
0.64×
as hot as the Sun
142×
the Sun's light output
-0.53
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.