K-type star · orange
3 Leo
3 Leo is an orange in the constellation Leo 405 ly from Earth. Its surface is about 4,637 K, about 0.8 times the Sun's surface temperature, and it shines at 69.25× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 405 years ago.
Also catalogued as HR 3755 · HD 81873 · HIP 46457
4,637 K
temperature
5.72
apparent magnitude
69.25× ☉
luminosity vs Sun
K0III
spectral type
Distance & comparison with our Sun
405 years
at light speed from Earth
0.80×
as hot as the Sun
69.25×
the Sun's light output
0.25
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.