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      Sfondi in evidenza
      Autore dello sfondo:
      Mark Johnston

      27 Sept 2026

      Two quiescent filaments Sept 26 2026

      Two separate quiescent filaments captured Sept 26 2026. The first shows footpoints down into the lower chromosphere while the second appears uniformly suspended above the surface. In both photos fibrils are clearly defined. This structures form in quiet regions of the Sun away from sunspots. Dataset includes two raw TIFFs and the finished jpgs. Seeing 4/5

      Autore del dataset
      Mark Johnston
      T-22

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      • Tipo di obiettivo
        ............................................................................................................................
        Sun
      • Fotocamera
        ............................................................................................................................
        Player One Apollo-M IMX174M with cooler
      • Coordinate dell'obiettivo
        ............................................................................................................................
        RA 00 00 00.0 Dec 00 00 00
      • Emisfero
        ............................................................................................................................
        Northern
      • Posizione del telescopio
        ............................................................................................................................
        United States of America
      • Evento transitorio
        ............................................................................................................................
        Yes
      • Osservato il
        ............................................................................................................................
        26 Sept 2026 - 26 Sept 2026
      Filtro
      Exp. media (s)
      Esposizione totale
      Sottoframe
      Halpha301m2

      Two quiescent filaments Sept 26 2026