B-type star · blue-white star
Tau¹ Lup
Tau¹ Lup is a blue-white star in the constellation Lupus 1,091 ly from Earth. Its surface is about 12,429 K, about 2.2 times the Sun's surface temperature, and it shines at 1,462× the Sun's brightness. At magnitude 4.6 it is bright enough to see with the naked eye; the light you see left it 1,091 years ago.
Also catalogued as HR 5395 · HD 126341 · HIP 70574
12,429 K
temperature
4.56
apparent magnitude
1,462× ☉
luminosity vs Sun
B2IV
spectral type
Distance & comparison with our Sun
1,091 years
at light speed from Earth
2.15×
as hot as the Sun
1,462×
the Sun's light output
-3.06
absolute magnitude
Explore from here · roam the neighborhood
Nearest stars
Can you see it tonight?
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.