A-type star · white star
HR 4644
HR 4644 is a white star in the constellation Crux. Its surface is about 7,774 K, about 1.3 times the Sun's surface temperature, and it shines at 37,670,380× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye.
brightness mag 5.91B9Ia
Also catalogued as HD 106068 · HIP 59517
7,774 K
temperature
5.91
apparent magnitude
37,670,380× ☉
luminosity vs Sun
B9Ia
spectral type
Distance & comparison with our Sun
–
at light speed from Earth
1.35×
as hot as the Sun
37,670,380×
the Sun's light output
-14.09
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.