B-type star · blue-white star
HR 7734
HR 7734 is a blue-white star in the constellation Cygnus 1,431 ly from Earth. Its surface is about 10,303 K, about 1.8 times the Sun's surface temperature, and it shines at 433× the Sun's brightness. At magnitude 6.5 it is within reach of 50 mm binoculars; the light you see left it 1,431 years ago.
Also catalogued as HD 192538 · HIP 99719
10,303 K
temperature
6.47
apparent magnitude
433× ☉
luminosity vs Sun
A0V
spectral type
Distance & comparison with our Sun
1,431 years
at light speed from Earth
1.78×
as hot as the Sun
433×
the Sun's light output
-1.74
absolute magnitude
Explore from here · roam the neighborhood
Nearest stars
Can you see it tonight?
BINOCULARS NEEDED
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.