B-type star · blue-white star
HR 3858
HR 3858 is a blue-white star in the constellation Hydra 506 ly from Earth. Its surface is about 11,867 K, about 2.1 times the Sun's surface temperature, and it shines at 262× the Sun's brightness. At magnitude 4.8 it is bright enough to see with the naked eye; the light you see left it 506 years ago.
Also catalogued as HD 83953 · HIP 47522
11,867 K
temperature
4.76
apparent magnitude
262× ☉
luminosity vs Sun
B5V
spectral type
Distance & comparison with our Sun
506 years
at light speed from Earth
2.06×
as hot as the Sun
262×
the Sun's light output
-1.20
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.