M-type star · red
HR 8458
HR 8458 is a red in the constellation Pegasus 681 ly from Earth. Its surface is about 3,626 K, about 0.6 times the Sun's surface temperature, and it shines at 185× the Sun's brightness. At magnitude 5.8 it is bright enough to see with the naked eye; the light you see left it 681 years ago.
Also catalogued as HD 210502 · HIP 109471
3,626 K
temperature
5.78
apparent magnitude
185× ☉
luminosity vs Sun
M1III
spectral type
Distance & comparison with our Sun
681 years
at light speed from Earth
0.63×
as hot as the Sun
185×
the Sun's light output
-0.82
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.