A-type star · white star
Sigma¹ Tau
Sigma¹ Tau is a white star in the constellation Taurus 147 ly from Earth. Its surface is about 8,650 K, about 1.5 times the Sun's surface temperature, and it shines at 16.44× the Sun's brightness. At magnitude 5.1 it is bright enough to see with the naked eye; the light you see left it 147 years ago.
Also catalogued as HR 1478 · HD 29479 · HIP 21673
8,650 K
temperature
5.08
apparent magnitude
16.44× ☉
luminosity vs Sun
A4m
spectral type
Distance & comparison with our Sun
147 years
at light speed from Earth
1.50×
as hot as the Sun
16.44×
the Sun's light output
1.81
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.