B-type star · blue-white star

HR 7591

HR 7591 is a blue-white star in the constellation Cygnus 1,664 ly from Earth. Its surface is about 12,989 K, about 2.3 times the Sun's surface temperature, and it shines at 981× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye; the light you see left it 1,664 years ago.

1,664 lybrightness mag 5.91B2III

Also catalogued as HD 188252 · HIP 97774

12,989 K
temperature
5.91
apparent magnitude
981× ☉
luminosity vs Sun
B2III
spectral type
Distance & comparison with our Sun
1,664 years
at light speed from Earth
2.25×
as hot as the Sun
981×
the Sun's light output
-2.63
absolute magnitude
Explore from here · roam the neighborhood
HR 7591B-type
Sky regionCygnusthis direction
StarHR 760026 ly
StarHR 7492150 ly
StarHR 7759260 ly
StarAljanahstar
StarFawarisstar
Nearest stars
Bright stars in Cygnus
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.9To see it no equipment neededLook toward Cygnus

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.