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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:54  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
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All Constellations » Cygnus » 

μ2 Cygni (mu2 Cygni)

Altitude: -6.5°   Azimuth: 23.0°   Direction: North-North-East

μ2 Cygni is a multiple main-sequence star in the constellation of Cygnus.

μ2 Cygni visual magnitude is 6.08. Because of its reltive faintness, μ2 Cygni should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about μ2 Cygni:


μ2 Cygni (mu2 Cygni) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -6.5°
Azimuth: 23.0°
Direction: North-North-East

Celestial coordinates and finder chart of μ2 Cygni

μ2 Cygni is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of μ2 Cygni are provided in the following table:

21h 44m 08s
+28° 44’ 35”

The simplified sky map below shows the position of μ2 Cygni in the sky:

Finder chart μ2 Cygni (mu2 Cygni) star
Simplified finder chart for μ2 Cygni (mu2 Cygni).

Visibility of μ2 Cygni from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's μ2 Cygni (mu2 Cygni) rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 61.3°
Max altitude: 67.3°
Azimuth: 298.7°

Digitized Sky Survey image of μ2 Cygni

The image below is a photograph of μ2 Cygni from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of μ2 Cygni is 0.231 arcsec per year in Right Ascension and -0.219 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of μ2 Cygni (mu2 Cygni) star
DSS2 image of μ2 Cygni. The red arrow shows the motion of μ2 Cygni during the next 1000 years (3.85 arcmin in Right Ascension and -3.65 arcmin in declination);

Distance of μ2 Cygni from the Sun and relative movement

μ2 Cygni is distant 73.03 light years from the Sun and it is moving far from the Sun at the speed of 17 kilometers per second.

22.40 pc
73.03 ly
17 km/s
0.231 arcsec/year
-0.219 arcsec/year

Spectral properties of μ2 Cygni

μ2 Cygni belongs to spectral class G2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where μ2 Cygni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of μ2 Cygni. Attribution: Richard Powell / CC BY-SA

μ2 Cygni star system properties

μ2 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 μ2 Cygni double sysyem:

2 arcsec

Alternative designations of μ2 Cygni

μ2 Cygni
(mu2 Cygni)
Gl 836.6B