B-type star · blue-white star

Tau¹ Aqr

Tau¹ Aqr is a blue-white star in the constellation Aquarius 318 ly from Earth. Its surface is about 10,329 K, about 1.8 times the Sun's surface temperature, and it shines at 44.14× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 318 years ago.

318 lybrightness mag 5.68B9V

Also catalogued as HR 8673 · HD 215766 · HIP 112542

10,329 K
temperature
5.68
apparent magnitude
44.14× ☉
luminosity vs Sun
B9V
spectral type
Distance & comparison with our Sun
318 years
at light speed from Earth
1.79×
as hot as the Sun
44.14×
the Sun's light output
0.74
absolute magnitude
Explore from here · roam the neighborhood
Tau¹ AqrB-type
Sky regionAquariusthis direction
StarTau² Aqr3.6 ly
StarHR 881638 ly
StarSigma Aqr40 ly
StarSadalsuudstar
StarSadalmelikstar
Nearest stars
Bright stars in Aquarius
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.7To see it no equipment neededLook toward Aquarius

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.