B-type star · blue-white star

Tau Tau

Tau Tau is a blue-white star in the constellation Taurus 398 ly from Earth. Its surface is about 11,779 K, about 2.0 times the Sun's surface temperature, and it shines at 254× the Sun's brightness. At magnitude 4.3 it is bright enough to see with the naked eye; the light you see left it 398 years ago.

398 lybrightness mag 4.27B3V

Also catalogued as HR 1497 · HD 29763 · HIP 21881

11,779 K

temperature

4.27

apparent magnitude

254× ☉

luminosity vs Sun

B3V

spectral type

Distance & comparison with our Sun

398 years

at light speed from Earth

2.04×

as hot as the Sun

254×

the Sun's light output

-1.16

absolute magnitude

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Tau TauB-type

Sky regionTaurusthis direction

Nearest stars

Bright stars in Taurus

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VISIBLE TO THE NAKED EYE

Brightness mag 4.3To see it no equipment neededLook toward Taurus

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.