Observation of the star Alpha Ophiuchi (Rasalhague) in real-time from Lyon

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LUNDI 2 MARS 2026 À 12:09:23 UTC+1

Alpha Ophiuchi (Rasalhague)

Magnitude : 2.08


  • Distance48.6 années lumière
  • Ascension droite J200017h 34m 56.069s
  • Déclinaison J200012° 33m 36.13s
  • Mouvement propre108.07 mas/an
    -221.57 mas/an
  • Azimut83.35869868566284°
  • Altitude23.957985350283458°

Alpha Ophiuchi (Rasalhague)

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

StarMagnitudeDistanceEquatorial position J2000Current Equatorial Position*Current Horizontal Position at Lyon
Alpha Ophiuchi (Rasalhague)2.0848.6 light yearRight ascension :
17ʰ34ᵐ56.069ˢ
Declination : 12°33'56.069″
Right ascension :
17ʰ36ᵐ8.5638285269ˢ
Declination :
12°32′22.0079633594″
Azimuth :
83.35869868566284°
Altitude :
23.957985350283458°