Observe cepheus 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 01:47 UTC+2

Observation of the Cepheus constellation

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

General presentation

The constellation of Cepheus is a circumpolar constellation in the northern hemisphere, visible for much of the year. Located near Cassiopeia and the North Star. Although its stars are relatively dim, Cepheus is an excellent reference point for exploring the constellations of the boreal sky.

Shape of the Cepheus constellation

The constellation of Cepheus has a characteristic shape reminiscent of a small house or an irregular pentagon. This geometric figure is relatively easy to recognize and allows for the rapid identification of the constellation near Cassiopeia.

Stars of the Cepheus constellation

StarMagnitudeDistanceEquatorial position J2000Current Equatorial PositionCurrent Horizontal Position at MarseilleLink
Alpha Cephei2.4449.05 light yearsRight ascension :
21ʰ18ᵐ34.772ˢ
Declination : 62°35'34.772″		Right ascension :
21ʰ19ᵐ14.4744669133ˢ
Declination :
62°42′8.6486432706″		Azimut :
161.17216246534215°
Altitude :
68.77718557293768°
Beta Cephei3.16690 light yearsRight ascension :
21ʰ28ᵐ39.597ˢ
Declination : 70°33'39.597″		Right ascension :
21ʰ29ᵐ2.2095930053ˢ
Declination :
70°40′44.9325459625″		Azimut :
171.3773367963735°
Altitude :
61.93601254757246°
Eta Cephei3.4346.53 light yearsRight ascension :
20ʰ45ᵐ17.376ˢ
Declination : 61°50'17.376″		Right ascension :
20ʰ45ᵐ52.8504653186ˢ
Declination :
61°56′23.2143716139″		Azimut :
151.89411192549687°
Altitude :
66.938399206132°
Gamma Cephei3.2145 light yearsRight ascension :
23ʰ39ᵐ20.852ˢ
Declination : 77°37'20.852″		Right ascension :
23ʰ40ᵐ32.1718080383ˢ
Declination :
77°46′39.5346975538″		Azimut :
-172.6352933422669°
Altitude :
54.53768281325657°
Iota Cephei3.52115.3 light yearsRight ascension :
22ʰ49ᵐ40.817ˢ
Declination : 66°12'40.817″		Right ascension :
22ʰ50ᵐ40.5551059481ˢ
Declination :
66°20′27.3810860866″		Azimut :
-171.83633952679062°
Altitude :
66.53311078586094°
Delta Cephei3.48865 light yearsRight ascension :
22ʰ29ᵐ10.27ˢ
Declination : 58°24'10.27″		Right ascension :
22ʰ30ᵐ11.9400501393ˢ
Declination :
58°33′11.1308333215″		Azimut :
-174.12296665248226°
Altitude :
74.63234396228532°
Zeta Cephei3.31840 light yearsRight ascension :
22ʰ10ᵐ51.277ˢ
Declination : 58°12'51.277″		Right ascension :
22ʰ11ᵐ48.9621344772ˢ
Declination :
58°20′3.4904202097″		Azimut :
176.73946908712023°
Altitude :
74.9291971004044°