Observation of the star Alpha Cephei in real-time from Lyon

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LUNDI 2 MARS 2026 À 08:24:10 UTC+1

Alpha Cephei

Magnitude : 2.44


  • Distance49.05 années lumière
  • Ascension droite J200021h 18m 34.772s
  • Déclinaison J200062° 35m 8.07s
  • Mouvement propre150.55 mas/an
    49.09 mas/an
  • Azimut-140.33645729000864°
  • Altitude60.17581122740523°

Alpha Cephei

* application of precession, nutation, proper motion and aberration of light.

StarMagnitudeDistanceEquatorial position J2000Current Equatorial Position*Current Horizontal Position at Lyon
Alpha Cephei2.4449.05 light yearRight ascension :
21ʰ18ᵐ34.772ˢ
Declination : 62°35'34.772″
Right ascension :
21ʰ19ᵐ8.3788011406ˢ
Declination :
62°41′42.88906323″
Azimuth :
-140.33645729000864°
Altitude :
60.17581122740523°