B-type star · blue-white star

Sigma Aqr

Sigma Aqr is a blue-white star in the constellation Aquarius 290 ly from Earth. Its surface is about 10,838 K, about 1.9 times the Sun's surface temperature, and it shines at 81.06× the Sun's brightness. At magnitude 4.8 it is bright enough to see with the naked eye; the light you see left it 290 years ago.

290 lybrightness mag 4.82A0IVs

Also catalogued as HR 8573 · HD 213320 · HIP 111123

10,838 K
temperature
4.82
apparent magnitude
81.06× ☉
luminosity vs Sun
A0IVs
spectral type
Distance & comparison with our Sun
290 years
at light speed from Earth
1.88×
as hot as the Sun
81.06×
the Sun's light output
0.08
absolute magnitude
Explore from here · roam the neighborhood
Sigma AqrB-type
Sky regionAquariusthis direction
StarHR 856532 ly
StarHR 846738 ly
Star44 Aqr38 ly
StarSadalsuudstar
StarSadalmelikstar
Nearest stars
Bright stars in Aquarius
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 4.8To 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.