B-type star · blue-white star
HR 1973
HR 1973 is a blue-white star in the constellation Columba 429 ly from Earth. Its surface is about 10,543 K, about 1.8 times the Sun's surface temperature, and it shines at 115× the Sun's brightness. At magnitude 5.3 it is bright enough to see with the naked eye; the light you see left it 429 years ago.
Also catalogued as HD 38170 · HIP 26868
10,543 K
temperature
5.29
apparent magnitude
115× ☉
luminosity vs Sun
B9/B9.5V
spectral type
Distance & comparison with our Sun
429 years
at light speed from Earth
1.83×
as hot as the Sun
115×
the Sun's light output
-0.30
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.