B-type star · blue-white star
HR 3019
HR 3019 is a blue-white star in the constellation Puppis 743 ly from Earth. Its surface is about 10,175 K, about 1.8 times the Sun's surface temperature, and it shines at 126× the Sun's brightness. At magnitude 6.4 it is within reach of 50 mm binoculars; the light you see left it 743 years ago.
Also catalogued as HD 63112 · HIP 37951
10,175 K
temperature
6.39
apparent magnitude
126× ☉
luminosity vs Sun
B9III
spectral type
Distance & comparison with our Sun
743 years
at light speed from Earth
1.76×
as hot as the Sun
126×
the Sun's light output
-0.40
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.