B-type star · blue-white star
HR 3129
HR 3129 is a blue-white star in the constellation Puppis 959 ly from Earth. Its surface is about 13,121 K, about 2.3 times the Sun's surface temperature, and it shines at 1,228× the Sun's brightness. At magnitude 4.5 it is bright enough to see with the naked eye; the light you see left it 959 years ago.
Also catalogued as HD 65818 · HIP 38957
13,121 K
temperature
4.47
apparent magnitude
1,228× ☉
luminosity vs Sun
B1Vp + B2
spectral type
Distance & comparison with our Sun
959 years
at light speed from Earth
2.27×
as hot as the Sun
1,228×
the Sun's light output
-2.87
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.