K-type star · orange dwarf
HR 6731
HR 6731 is an orange dwarf in the constellation Apus 246 ly from Earth. Its surface is about 4,207 K, about 0.7 times the Sun's surface temperature, and it shines at 22.37× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye; the light you see left it 246 years ago.
Also catalogued as HD 164712 · HIP 89115
4,207 K
temperature
5.86
apparent magnitude
22.37× ☉
luminosity vs Sun
K3III
spectral type
Distance & comparison with our Sun
246 years
at light speed from Earth
0.73×
as hot as the Sun
22.37×
the Sun's light output
1.48
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.