Two quiescent filaments Sept 26 2026
    Autore dello sfondo:
    Mark Johnston

    14 Oct 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

    Dataset da cui è stata elaborata l'immagine

    Two quiescent filaments Sept 26 2026

    6 credit

    Apri
    • Tipo di obiettivo
      ............................................................................................................................
      Sun
    • Fotocamera
      ............................................................................................................................
      Player One Apollo-M IMX174M with cooler
    • Coordinate dell'obiettivo
      ............................................................................................................................
      RA 0 Dec 0
    • 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