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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:10 
Transit: 12:47 
Sunset: 18:24
sunny   (Daytime)  
What's Visible Now • Tonight Timeline
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All Constellations » Cygnus » 

μ1 Cygni (mu1 Cygni)

Below the horizon.  Rise: 12:48 | Tran: 21:41 | Set: 6:37
Alt: -4.29°   Az: 330.63°   Direction: North-North-West

μ1 Cygni is a multiple main-sequence star of spectral class F6 in the constellation of Cygnus.

μ1 Cygni visual magnitude is 4.73. Because of its moderate brightness, μ1 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 μ1 Cygni (mu1 Cygni) star
DSS2 image of μ1 Cygni. The red arrow shows the motion of μ1 Cygni during the next 1000 years (4.87 arcmin in Right Ascension and -4.02 arcmin in declination);

Celestial Coordinates

Apparent

21h 45m 14s
+28° 51’ 26”
09h 44m 12s
07h 29m 27s

J2000

21h 44m 08s
+28° 44’ 34”

Galactic Coordinates

80.58°
-18.34°

Finder Chart

Finder chart μ1 Cygni (mu1 Cygni) star
Simplified finder chart for μ1 Cygni (mu1 Cygni).

Magnitude, Color, Spectral Class

4.73
Main-sequence

2.98
F6V
6481K

The red dot in the diagram below shows where μ1 Cygni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of μ1 Cygni. Attribution: Richard Powell / CC BY-SA

Star System Properties

μ1 Cygni is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the μ1 Cygni double sysyem:

4.73
6.03
1.3
2 arcsec

Distance, Radial Speed, Proper Motion

μ1 Cygni is distant 73.03 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

22.40
73.03
18 km/s
0.292 arcsec/y
-0.241"/y

Alternative Designations

μ1 Cygni
(mu1 Cygni)
SAO89940
SAO89940
Gl 836.6A

Visibility from Your Location

Today's μ1 Cygni (mu1 Cygni) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 61.1°
Max altitude: 67.4°
Azimuth: 298.9°