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      An amazing Globular Cluster!
      Autore dello sfondo:
      Judith Prana

      28 Mar 2026

      An amazing Globular Cluster!

      47 Tucanae or 47 Tuc (also designated as NGC 104 and Caldwell 106) is a globular cluster located in the constellation Tucana. It is about 4.45 ± 0.01 kpc (14,500 ± 32.6 ly) from Earth, and 120 light years in diameter. 47 Tuc can be seen with the naked eye, with an apparent magnitude of 4.1.[10] It appears about 44 arcminutes across including its far outreaches. Due to its far southern location, 18° from the south celestial pole, it was not catalogued by European astronomers until the 1750s, when the cluster was first identified by Nicolas-Louis de Lacaille from South Africa. 47 Tucanae is the second brightest globular cluster after Omega Centauri, and telescopically reveals about ten thousand stars, many appearing within a small dense central core. (Wikipedia)

      Dataset da cui è stata elaborata l'immagine

      47 Tucanae

      5 credit

      Apri
      Telescope Live
      CHI-1-CCD
      • Tipo di obiettivo
        ............................................................................................................................
        Globular Cluster
      • Fotocamera
        ............................................................................................................................
        FLI ProLine PL9000
      • Coordinate dell'obiettivo
        ............................................................................................................................
        RA 6.0223 Dec -72.0814
      • Emisfero
        ............................................................................................................................
        Southern
      • Posizione del telescopio
        ............................................................................................................................
        Chile
      • Evento transitorio
        ............................................................................................................................
        No
      • Osservato il
        ............................................................................................................................
        08 Sept 2019 - 23 Dec 2022
      Filtro
      Exp. media (s)
      Esposizione totale
      Sottoframe
      Blue861h10m49
      Luminance5545m49
      Red7259m49
      Green841h9m49
      Halpha1210m49

      An amazing Globular Cluster!