A-type star · white star
30 Cyg
30 Cyg is a white star in the constellation Cygnus 611 ly from Earth. Its surface is about 9,028 K, about 1.6 times the Sun's surface temperature, and it shines at 367× the Sun's brightness. At magnitude 4.8 it is bright enough to see with the naked eye; the light you see left it 611 years ago.
Also catalogued as HR 7730 · HD 192514 · HIP 99639
9,028 K
temperature
4.80
apparent magnitude
367× ☉
luminosity vs Sun
A5IIIn
spectral type
Distance & comparison with our Sun
611 years
at light speed from Earth
1.56×
as hot as the Sun
367×
the Sun's light output
-1.56
absolute magnitude
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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.