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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:10 
Transit: 12:47 
Sunset: 18:24
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All Constellations » Cygnus » 

ω1 Cygni (omega1 Cygni)

Above the horizon.  Circumpolar today
Alt: 69.29°   Az: 83.94°   Direction: East

ω1 Cygni is a multiple sub-giant star of spectral class B2 in the constellation of Cygnus.

ω1 Cygni visual magnitude is 4.95. Because of its moderate brightness, ω1 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 ω1 Cygni (omega1 Cygni) star
DSS2 image of ω1 Cygni. The red arrow shows the motion of ω1 Cygni during the next 10000 years (2.17 arcmin in Right Ascension and 1.33 arcmin in declination);

Celestial Coordinates

Apparent

20h 30m 49s
+49° 02’ 08”
21h 50m 16s
18h 21m 05s

J2000

20h 30m 03s
+48° 57’ 06”

Galactic Coordinates

86.07°
5.74°

Finder Chart

Finder chart ω1 Cygni (omega1 Cygni) star
Simplified finder chart for ω1 Cygni (omega1 Cygni).

Magnitude, Color, Spectral Class

4.95
Sub-giant

-2.18
B2IV
11407K

The red dot in the diagram below shows where ω1 Cygni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ω1 Cygni. Attribution: Richard Powell / CC BY-SA

Star System Properties

ω1 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 ω1 Cygni double sysyem:

4.95
11.95
7
56.3 arcsec

Distance, Radial Speed, Proper Motion

ω1 Cygni is distant 869.33 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

266.67
869.33
-22 km/s
0.013 arcsec/y
0.008"/y

Alternative Designations

ω1 Cygni
(omega1 Cygni)
SAO49712
SAO49712

Visibility from Your Location

ω1 Cygni (omega1 Cygni) is circumpolar and transits at 19:27 UTC (altitude: 87.6°)