A-type star · white star
73 Ori
73 Ori is a white star in the constellation Orion 1,165 ly from Earth. Its surface is about 9,942 K, about 1.7 times the Sun's surface temperature, and it shines at 741× the Sun's brightness. At magnitude 5.4 it is bright enough to see with the naked eye; the light you see left it 1,165 years ago.
Also catalogued as HR 2229 · HD 43247 · HIP 29736
9,942 K
temperature
5.44
apparent magnitude
741× ☉
luminosity vs Sun
B9II-III
spectral type
Distance & comparison with our Sun
1,165 years
at light speed from Earth
1.72×
as hot as the Sun
741×
the Sun's light output
-2.32
absolute magnitude
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Nearest stars
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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.