Observe cygnus in the sky in real time in 3D. You will also be able to see the planets of the solar system, the Sun and the Moon. Navigate freely in the sky by clicking on the keys to move forward or backward in time. Discover its position and display the azimuth grid to find your way in the sky. The « screen » feature allows you to take a picture of the sky and download the image.

LUNDI 24 AOÛT 2026 À 02:41 UTC+2

Observation of the Cygnus constellation

Visualize in real time the position of the Cygnus constellation in the sky.

General presentation

The Cygnus constellation is one of the most spectacular constellations of the summer sky in the northern hemisphere. Crossed by the Milky Way, it contains many stars, nebulae and deep sky objects. It is also known for its star Deneb, which forms the Summer Triangle with Vega and Altaïr.

Shape of the Cygnus constellation

The constellation of Cygnus is easily recognizable thanks to its large shape; this figure represents a swan in flight, with Deneb marking the tail, Albireo the head, and the two wings spread on either side.

Stars of the Cygnus constellation

StarMagnitudeDistanceEquatorial position J2000Current Equatorial PositionCurrent Horizontal Position at MarseilleLink
Deneb1.251550 light yearsRight ascension :
20ʰ41ᵐ25.915ˢ
Declination : 45°16'25.915″		Right ascension :
20ʰ42ᵐ22.1818514498ˢ
Declination :
45°22′42.1427345662″		Azimut :
107.61585984482828°
Altitude :
63.37140943465191°
Gamma Cygni2.231830 light yearsRight ascension :
20ʰ22ᵐ13.702ˢ
Declination : 40°15'13.702″		Right ascension :
20ʰ23ᵐ12.756969163ˢ
Declination :
40°20′42.0516119436″		Azimut :
99.33793002059821°
Altitude :
58.71507417147243°
Epsilon Cygni2.4872.7 light yearsRight ascension :
20ʰ46ᵐ12.682ˢ
Declination : 33°58'12.682″		Right ascension :
20ʰ47ᵐ18.9201444316ˢ
Declination :
34°4′25.6005061029″		Azimut :
84.10852120469856°
Altitude :
60.524850853662095°
Zeta Cygni3.2143 light yearsRight ascension :
21ʰ12ᵐ56.186ˢ
Declination : 30°13'56.186″		Right ascension :
21ʰ14ᵐ5.8823942666ˢ
Declination :
30°20′22.1920874176″		Azimut :
70.88876427353321°
Altitude :
63.248746448443576°
Delta Cygni2.87165 light yearsRight ascension :
19ʰ44ᵐ58.479ˢ
Declination : 45°7'58.479″		Right ascension :
19ʰ45ᵐ50.0058153704ˢ
Declination :
45°11′56.8212203863″		Azimut :
111.38366920335167°
Altitude :
53.63144260372806°
Iota² Cygni3.755121.3 light yearsRight ascension :
19ʰ29ᵐ42.35872ˢ
Declination : 51°43'42.35872″		Right ascension :
19ʰ30ᵐ24.4101289071ˢ
Declination :
51°47′20.3151627689″		Azimut :
123.03476057006539°
Altitude :
52.577381801283565°
Eta Cygni3.93134.9 light yearsRight ascension :
19ʰ56ᵐ18.3722ˢ
Declination : 35°5'18.3722″		Right ascension :
19ʰ57ᵐ19.9651739564ˢ
Declination :
35°9′26.2635828196″		Azimut :
94.57498412114472°
Altitude :
51.95141231431636°
Beta Cygni3.3380 light yearsRight ascension :
19ʰ30ᵐ43.2805ˢ
Declination : 27°57'43.2805″		Right ascension :
19ʰ31ᵐ49.2476157954ˢ
Declination :
28°1′7.6045247731″		Azimut :
89.64124702588367°
Altitude :
43.615367075431095°