B-type star · blue-white star
Alpha Tel
Alpha Tel is a blue-white star in the constellation Telescopium 278 ly from Earth. Its surface is about 13,099 K, about 2.3 times the Sun's surface temperature, and it shines at 254× the Sun's brightness. At magnitude 3.5 it is bright enough to see with the naked eye; the light you see left it 278 years ago.
Also catalogued as HR 6897 · HD 169467 · HIP 90422
13,099 K
temperature
3.49
apparent magnitude
254× ☉
luminosity vs Sun
B3IV
spectral type
Distance & comparison with our Sun
278 years
at light speed from Earth
2.27×
as hot as the Sun
254×
the Sun's light output
-1.16
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.