40 Cygni
Above the horizon.
Circumpolar today
Alt: 52.31°
Az: 270.43°
Direction: West
40 Cygni is a main-sequence star of spectral class A3 in the constellation of Cygnus.
40 Cygni visual magnitude is 5.62. Because of its faintness, 40 Cygni is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.
DSS2 image of 40 Cygni. The red arrow shows the motion of 40 Cygni during the next
10000 years (-3.83 arcmin in Right Ascension and -11.67 arcmin in declination);
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
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Finder chart for 40 Cygni.
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where 40 Cygni is situated in the Hertzsprung–Russell diagram.
H-R diagram showing the position of 40 Cygni.
Attribution: Richard Powell / CC BY-SA
Distance, Radial Speed, Proper Motion
40 Cygni is distant 270.09 light years from the Sun
Alternative Designations
Visibility from Your Location
40 Cygni is circumpolar and transits at 01:45 UTC (altitude: 76.9°)