B-type star · blue-white star
HR 2154
HR 2154 is a blue-white star in the constellation Monoceros 1,059 ly from Earth. Its surface is about 11,957 K, about 2.1 times the Sun's surface temperature, and it shines at 653× the Sun's brightness. At magnitude 5.4 it is bright enough to see with the naked eye; the light you see left it 1,059 years ago.
Also catalogued as HD 41692 · HIP 28949
11,957 K
temperature
5.37
apparent magnitude
653× ☉
luminosity vs Sun
B5IV
spectral type
Distance & comparison with our Sun
1,059 years
at light speed from Earth
2.07×
as hot as the Sun
653×
the Sun's light output
-2.19
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.