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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
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All Constellations » Cygnus » 

Albireo - β1 Cygni (beta1 Cygni)

Altitude: 47.4°   Azimuth: 255.3°   Direction: West-South-West

Albireo, also designated as β1 Cygni (beta1 Cygni), is a variable and multiple bright giant star in the constellation of Cygnus.

Albireo visual magnitude is 3.08. Because of its moderate brightness, Albireo should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about Albireo:

Bright giant

Albireo - β1 Cygni (beta1 Cygni) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 47.4°
Azimuth: 255.3°
Direction: West-South-West

Celestial coordinates and finder chart of Albireo

Albireo 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 Albireo are provided in the following table:

19h 30m 43s
+27° 57’ 34”

The simplified sky map below shows the position of Albireo in the sky:

Finder chart Albireo - β1 Cygni (beta1 Cygni) star
Simplified finder chart for Albireo - β1 Cygni (beta1 Cygni).

Visibility of Albireo 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 Albireo - β1 Cygni (beta1 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: 62.0°
Max altitude: 66.5°
Azimuth: 298.0°

Digitized Sky Survey image of Albireo

The image below is a photograph of Albireo 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 Albireo is 0.002 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of Albireo - β1 Cygni (beta1 Cygni) star
DSS2 image of Albireo. The red arrow shows the motion of Albireo during the next 100000 years (3.33 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of Albireo from the Sun and relative movement

Albireo is distant 385.34 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.

118.20 pc
385.34 ly
-24 km/s
0.002 arcsec/year
-0.002 arcsec/year

Spectral properties of Albireo

Albireo belongs to spectral class K3 and has a luminosity class of II corresponding to a bright giant star.


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

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

Albireo star system properties

Albireo is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the Albireo double sysyem:

34.7 arcsec

Alternative designations of Albireo

β1 Cygni
(beta1 Cygni)