B-type star · blue-white star
HR 3157
HR 3157 is a blue-white star in the constellation Carina 1,348 ly from Earth. Its surface is about 10,709 K, about 1.9 times the Sun's surface temperature, and it shines at 530× the Sun's brightness. At magnitude 6.1 it is within reach of 50 mm binoculars; the light you see left it 1,348 years ago.
Also catalogued as HD 66546 · HIP 39225
10,709 K
temperature
6.12
apparent magnitude
530× ☉
luminosity vs Sun
B2IV-V
spectral type
Distance & comparison with our Sun
1,348 years
at light speed from Earth
1.86×
as hot as the Sun
530×
the Sun's light output
-1.96
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.