A-type star · white star
Beta³ Tuc
Beta³ Tuc is a white star in the constellation Tucana 149 ly from Earth. Its surface is about 9,675 K, about 1.7 times the Sun's surface temperature, and it shines at 16.95× the Sun's brightness. At magnitude 5.1 it is bright enough to see with the naked eye; the light you see left it 149 years ago.
Also catalogued as HR 136 · HD 3003 · HIP 2578 · Gliese GJ 9015A
9,675 K
temperature
5.07
apparent magnitude
16.95× ☉
luminosity vs Sun
A0V
spectral type
Distance & comparison with our Sun
149 years
at light speed from Earth
1.68×
as hot as the Sun
16.95×
the Sun's light output
1.78
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.