B-type star · blue-white star
HD 143321
HD 143321 is a blue-white star in the constellation Norma 645 ly from Earth. Its surface is about 10,163 K, about 1.8 times the Sun's surface temperature, and it shines at 95.41× the Sun's brightness. At magnitude 6.4 it is within reach of 50 mm binoculars; the light you see left it 645 years ago.
Also catalogued as HIP 78540
10,163 K
temperature
6.38
apparent magnitude
95.41× ☉
luminosity vs Sun
B5V
spectral type
Distance & comparison with our Sun
645 years
at light speed from Earth
1.76×
as hot as the Sun
95.41×
the Sun's light output
-0.10
absolute magnitude
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BINOCULARS NEEDED
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.