B-type star · blue-white star

HR 7556

HR 7556 is a blue-white star in the constellation Vulpecula 1,977 ly from Earth. Its surface is about 11,641 K, about 2.0 times the Sun's surface temperature, and it shines at 842× the Sun's brightness. At magnitude 6.5 it is within reach of 50 mm binoculars; the light you see left it 1,977 years ago.

1,977 lybrightness mag 6.45B5V

Also catalogued as HD 187640 · HIP 97572

11,641 K
temperature
6.45
apparent magnitude
842× ☉
luminosity vs Sun
B5V
spectral type
Distance & comparison with our Sun
1,977 years
at light speed from Earth
2.02×
as hot as the Sun
842×
the Sun's light output
-2.46
absolute magnitude
Explore from here · roam the neighborhood
HR 7556B-type
Sky regionVulpeculathis direction
StarHR 7502150 ly
StarCygnus X-1240 ly
Star22 Vul260 ly
StarAnserstar
Star23 Vulstar
Nearest stars
Bright stars in Vulpecula
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.5To see it 50 mm binocularsLook toward Vulpecula

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.