B-type star · blue-white star
Pi Tuc
Pi Tuc is a blue-white star in the constellation Tucana 318 ly from Earth. Its surface is about 10,738 K, about 1.9 times the Sun's surface temperature, and it shines at 52.29× the Sun's brightness. At magnitude 5.5 it is bright enough to see with the naked eye; the light you see left it 318 years ago.
Also catalogued as HR 83 · HD 1685 · HIP 1647
10,738 K
temperature
5.50
apparent magnitude
52.29× ☉
luminosity vs Sun
B9V
spectral type
Distance & comparison with our Sun
318 years
at light speed from Earth
1.86×
as hot as the Sun
52.29×
the Sun's light output
0.55
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.