B-type star · blue-white star
HR 8161
HR 8161 is a blue-white star in the constellation Cygnus 545 ly from Earth. Its surface is about 11,903 K, about 2.1 times the Sun's surface temperature, and it shines at 122× the Sun's brightness. At magnitude 5.8 it is bright enough to see with the naked eye; the light you see left it 545 years ago.
Also catalogued as HD 203245 · HIP 105282
11,903 K
temperature
5.75
apparent magnitude
122× ☉
luminosity vs Sun
B6V
spectral type
Distance & comparison with our Sun
545 years
at light speed from Earth
2.06×
as hot as the Sun
122×
the Sun's light output
-0.37
absolute magnitude
Explore from here · roam the neighborhood
Nearest stars
Can you see it tonight?
VISIBLE TO THE NAKED EYE
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.