B-type star · blue-white star

HR 8816

HR 8816 is a blue-white star in the constellation Aquarius 340 ly from Earth. Its surface is about 10,002 K, about 1.7 times the Sun's surface temperature, and it shines at 25.37× the Sun's brightness. At magnitude 6.4 it is within reach of 50 mm binoculars; the light you see left it 340 years ago.

340 lybrightness mag 6.43A0V

Also catalogued as HD 218639 · HIP 114371

10,002 K
temperature
6.43
apparent magnitude
25.37× ☉
luminosity vs Sun
A0V
spectral type
Distance & comparison with our Sun
340 years
at light speed from Earth
1.73×
as hot as the Sun
25.37×
the Sun's light output
1.34
absolute magnitude
Explore from here · roam the neighborhood
HR 8816B-type
Sky regionAquariusthis direction
StarTau² Aqr36 ly
StarTau¹ Aqr38 ly
StarHR 890040 ly
StarSadalsuudstar
StarSadalmelikstar
Nearest stars
Bright stars in Aquarius
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.4To see it 50 mm binocularsLook 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.