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      M45 - The Pleiades
      Autore dello sfondo:
      Tal Ny

      14 Jan 2023

      M45 - The Pleiades

      The Pleiades ... a real love-hate object of mine! Somehow the processing never works out as i imagine, whereupon I put the whole thing back into the corner for a few weeks. Well, in the meantime i have reached a state with which i'm halfway satisfied, but there is still definitely a lot of room for improvement!

      ----------------------------------------------------------

      The Pleiades (/ˈpliː.ədiːz, ˈpleɪ-, ˈplaɪ-/), also known as The Seven Sisters, Messier 45 and other names by different cultures, is an asterism and an open star cluster containing middle-aged, hot B-type stars in the north-west of the constellation Taurus. At a distance of about 444 light years, it is among the nearest star clusters to Earth. It is the nearest Messier object to Earth, and is the most obvious cluster to the naked eye in the night sky.

      The cluster is dominated by hot blue luminous stars that have formed within the last 100 million years. Reflection nebulae around the brightest stars were once thought to be left over material from their formation, but are now considered likely to be an unrelated dust cloud in the interstellar medium through which the stars are currently passing. This dust cloud is estimated to be moving at a speed of approximately 18 km/s relative to the stars in the cluster.

      (Source: Wikipedia)

      Dataset da cui è stata elaborata l'immagine

      M45

      24 credit

      Apri
      Telescope Live
      SPA-1-CCD
      • Tipo di obiettivo
        ............................................................................................................................
        Open Cluster
      • Fotocamera
        ............................................................................................................................
        FLI PL16083
      • Coordinate dell'obiettivo
        ............................................................................................................................
        RA 56.75 Dec 24.11667
      • Emisfero
        ............................................................................................................................
        Northern
      • Posizione del telescopio
        ............................................................................................................................
        Spain
      • Evento transitorio
        ............................................................................................................................
        No
      • Osservato il
        ............................................................................................................................
        18 Nov 2019 - 06 Dec 2021
      Filtro
      Exp. media (s)
      Esposizione totale
      Sottoframe
      Green2184h33m75
      Red2144h27m75
      Luminance48810h2m74
      Blue2344h48m74
      Halpha1215m74

      M45 - The Pleiades