B-type star · blue-white star
HR 2739
HR 2739 is a blue-white star in the constellation Monoceros 2,836 ly from Earth. Its surface is about 12,967 K, about 2.2 times the Sun's surface temperature, and it shines at 2,575× the Sun's brightness. At magnitude 6.0 it is within reach of 50 mm binoculars; the light you see left it 2,836 years ago.
Also catalogued as HD 55879 · HIP 34999
12,967 K
temperature
6.02
apparent magnitude
2,575× ☉
luminosity vs Sun
B0III
spectral type
Distance & comparison with our Sun
2,836 years
at light speed from Earth
2.25×
as hot as the Sun
2,575×
the Sun's light output
-3.68
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.