A-type star · white star
Polaris Australis
Polaris Australis is a white star in the constellation Octans 281 ly from Earth. Its surface is about 7,572 K, about 1.3 times the Sun's surface temperature, and it shines at 42.70× the Sun's brightness. At magnitude 5.5 it is bright enough to see with the naked eye; the light you see left it 281 years ago.
Also catalogued as Sigma Oct · HR 7228 · HD 177482 · HIP 104382
7,572 K
temperature
5.45
apparent magnitude
42.70× ☉
luminosity vs Sun
F0III
spectral type
Distance & comparison with our Sun
281 years
at light speed from Earth
1.31×
as hot as the Sun
42.70×
the Sun's light output
0.77
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.