F-type star · yellow-white star
HR 831
HR 831 is a yellow-white star in the constellation Perseus 315 ly from Earth. Its surface is about 6,765 K, about 1.2 times the Sun's surface temperature, and it shines at 21.38× the Sun's brightness. At magnitude 6.5 it is within reach of 50 mm binoculars; the light you see left it 315 years ago.
Also catalogued as HD 17484 · HIP 13176
6,765 K
temperature
6.45
apparent magnitude
21.38× ☉
luminosity vs Sun
F6III-IV
spectral type
Distance & comparison with our Sun
315 years
at light speed from Earth
1.17×
as hot as the Sun
21.38×
the Sun's light output
1.52
absolute magnitude
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BINOCULARS NEEDED
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.