B-type star · blue-white star
HR 4817
HR 4817 is a blue-white star in the constellation Centaurus 365 ly from Earth. Its surface is about 11,279 K, about 2.0 times the Sun's surface temperature, and it shines at 153× the Sun's brightness. At magnitude 4.6 it is bright enough to see with the naked eye; the light you see left it 365 years ago.
Also catalogued as HD 110073 · HIP 61789
11,279 K
temperature
4.63
apparent magnitude
153× ☉
luminosity vs Sun
B8II/III
spectral type
Distance & comparison with our Sun
365 years
at light speed from Earth
1.95×
as hot as the Sun
153×
the Sun's light output
-0.61
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.