A-type star · white star
Theta Tuc
Theta Tuc is a white star in the constellation Tucana 424 ly from Earth. Its surface is about 7,692 K, about 1.3 times the Sun's surface temperature, and it shines at 52.97× the Sun's brightness. At magnitude 6.1 it is within reach of 50 mm binoculars; the light you see left it 424 years ago.
Also catalogued as HR 139 · HD 3112 · HIP 2629
7,692 K
temperature
6.11
apparent magnitude
52.97× ☉
luminosity vs Sun
A7IV
spectral type
Distance & comparison with our Sun
424 years
at light speed from Earth
1.33×
as hot as the Sun
52.97×
the Sun's light output
0.54
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.