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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:06 
Transit: 12:56 
Sunset: 20:47
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All Constellations » Cygnus » 

ζ Cygni (zeta Cygni)

Above the horizon.  Rise: 21:23 | Tran: 6:33 | Set: 15:39
Alt: 68.44°   Az: 166.55°   Direction: South-South-East

ζ Cygni is a multiple giant star of spectral class G8 in the constellation of Cygnus.

ζ Cygni visual magnitude is 3.2. Because of its moderate brightness, ζ 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 ζ Cygni (zeta Cygni) star
DSS2 image of ζ Cygni. The red arrow shows the motion of ζ Cygni during the next 10000 years (0.17 arcmin in Right Ascension and -9.33 arcmin in declination);

Celestial Coordinates

Apparent

21h 14m 01s
+30° 19’ 57”
23h 37m 15s
20h 51m 16s

J2000

21h 12m 56s
+30° 13’ 36”

Galactic Coordinates

76.75°
-12.45°

Finder Chart

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Finder chart for ζ Cygni (zeta Cygni).

Magnitude, Color, Spectral Class

3.2
Giant

-0.13
G8III
4767K

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

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

Star System Properties

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

3.2
11.1
7.9
91.2 arcsec

Distance, Radial Speed, Proper Motion

ζ Cygni is distant 150.79 light years from the Sun and it is moving far from the Sun at the speed of 17 kilometers per second.

46.25
150.79
17 km/s
0.001 arcsec/y
-0.056"/y

Alternative Designations

ζ Cygni
(zeta Cygni)
SAO71070
SAO71070

Visibility from Your Location

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

Azimuth: 59.7°
Max altitude: 68.9°
Azimuth: 300.3°