A-type star · white star

77 Cyg

77 Cyg is a white star in the constellation Cygnus 412 ly from Earth. Its surface is about 9,487 K, about 1.6 times the Sun's surface temperature, and it shines at 71.06× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 412 years ago.

412 lybrightness mag 5.73A0V

Also catalogued as HR 8300 · HD 206644 · HIP 107162

9,487 K

temperature

5.73

apparent magnitude

71.06× ☉

luminosity vs Sun

A0V

spectral type

Distance & comparison with our Sun

412 years

at light speed from Earth

1.64×

as hot as the Sun

71.06×

the Sun's light output

0.22

absolute magnitude

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77 CygA-type

Sky regionCygnusthis direction

Nearest stars

Bright stars in Cygnus

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VISIBLE TO THE NAKED EYE

Brightness mag 5.7To 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.