M-type star · red
HR 7812
HR 7812 is a red in the constellation Octans 638 ly from Earth. Its surface is about 3,526 K, about 0.6 times the Sun's surface temperature, and it shines at 147× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye; the light you see left it 638 years ago.
Also catalogued as HD 194612 · HIP 101843
3,526 K
temperature
5.89
apparent magnitude
147× ☉
luminosity vs Sun
K5III
spectral type
Distance & comparison with our Sun
638 years
at light speed from Earth
0.61×
as hot as the Sun
147×
the Sun's light output
-0.57
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.