B-type star · blue-white star
HR 1947
HR 1947 is a blue-white star in the constellation Columba 440 ly from Earth. Its surface is about 11,216 K, about 1.9 times the Sun's surface temperature, and it shines at 75.02× the Sun's brightness. At magnitude 5.8 it is bright enough to see with the naked eye; the light you see left it 440 years ago.
Also catalogued as HD 37717 · HIP 26545
11,216 K
temperature
5.81
apparent magnitude
75.02× ☉
luminosity vs Sun
B8V
spectral type
Distance & comparison with our Sun
440 years
at light speed from Earth
1.94×
as hot as the Sun
75.02×
the Sun's light output
0.16
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.