B-type star · blue-white star
Eta Lup
Eta Lup is a blue-white star in the constellation Lupus 442 ly from Earth. Its surface is about 13,731 K, about 2.4 times the Sun's surface temperature, and it shines at 685× the Sun's brightness. At magnitude 3.4 it is bright enough to see with the naked eye; the light you see left it 442 years ago.
Also catalogued as HR 5948 · HD 143118 · HIP 78384
13,731 K
temperature
3.42
apparent magnitude
685× ☉
luminosity vs Sun
B2.5IV
spectral type
Distance & comparison with our Sun
442 years
at light speed from Earth
2.38×
as hot as the Sun
685×
the Sun's light output
-2.24
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.