A-type star · white star
54 Leo
54 Leo is a white star in the constellation Leo 287 ly from Earth. Its surface is about 9,930 K, about 1.7 times the Sun's surface temperature, and it shines at 128× the Sun's brightness. At magnitude 4.3 it is bright enough to see with the naked eye; the light you see left it 287 years ago.
Also catalogued as HR 4259 · HD 94601 · HIP 53417
9,930 K
temperature
4.30
apparent magnitude
128× ☉
luminosity vs Sun
A1
spectral type
Distance & comparison with our Sun
287 years
at light speed from Earth
1.72×
as hot as the Sun
128×
the Sun's light output
-0.42
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.