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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:15 
Transit: 12:47 
Sunset: 18:17
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All Constellations » Cygnus » 

λ Cygni (lambda Cygni)

Above the horizon.  Rise: 10:00 | Tran: 20:32 | Set: 7:08
Alt: 47.11°   Az: 86.92°   Direction: East

λ Cygni is a multiple main-sequence star of spectral class B5 in the constellation of Cygnus.

λ Cygni visual magnitude is 4.53. Because of its moderate brightness, λ Cygni is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of λ Cygni (lambda Cygni) star
DSS2 image of λ Cygni. The red arrow shows the motion of λ Cygni during the next 100000 years (15.00 arcmin in Right Ascension and -8.33 arcmin in declination);

Celestial Coordinates

Apparent

20h 48m 22s
+36° 34’ 59”
20h 08m 42s
16h 57m 04s

J2000

20h 47m 24s
+36° 29’ 26”

Galactic Coordinates

78.08°
-4.34°

Finder Chart

Finder chart λ Cygni (lambda Cygni) star
Simplified finder chart for λ Cygni (lambda Cygni).

Magnitude, Color, Spectral Class

4.53
Main-sequence

-2.62
B5V
11744K

The red dot in the diagram below shows where λ Cygni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of λ Cygni. Attribution: Richard Powell / CC BY-SA

Star System Properties

λ Cygni is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the λ Cygni double sysyem:

4.53
5.83
1.3
0.9 arcsec

Distance, Radial Speed, Proper Motion

λ Cygni is distant 878.71 light years from the Sun and it is moving towards the Sun at the speed of 23 kilometers per second.

269.54
878.71
-23 km/s
0.009 arcsec/y
-0.005"/y

Alternative Designations

λ Cygni
(lambda Cygni)
SAO70505
SAO70505

Visibility from Your Location

Today's λ Cygni (lambda Cygni) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 53.4°
Max altitude: 75.1°
Azimuth: 306.6°