B-type star · blue-white star
Psi² Lup
Psi² Lup is a blue-white star in the constellation Lupus 364 ly from Earth. Its surface is about 12,508 K, about 2.2 times the Sun's surface temperature, and it shines at 136× the Sun's brightness. At magnitude 4.8 it is bright enough to see with the naked eye; the light you see left it 364 years ago.
Also catalogued as HR 5839 · HD 140008 · HIP 76945
12,508 K
temperature
4.75
apparent magnitude
136× ☉
luminosity vs Sun
B5V
spectral type
Distance & comparison with our Sun
364 years
at light speed from Earth
2.17×
as hot as the Sun
136×
the Sun's light output
-0.49
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.