B-type star · blue-white star
Phi² Lup
Phi² Lup is a blue-white star in the constellation Lupus 519 ly from Earth. Its surface is about 12,589 K, about 2.2 times the Sun's surface temperature, and it shines at 337× the Sun's brightness. At magnitude 4.5 it is bright enough to see with the naked eye; the light you see left it 519 years ago.
Also catalogued as HR 5712 · HD 136664 · HIP 75304
12,589 K
temperature
4.54
apparent magnitude
337× ☉
luminosity vs Sun
B4V
spectral type
Distance & comparison with our Sun
519 years
at light speed from Earth
2.18×
as hot as the Sun
337×
the Sun's light output
-1.47
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.