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      Featured wallpaper
      Wallpaper author:
      Mark Johnston

      09 Sept 2025

      Filaprom Sept 8 2025

      Prominence and filament joined together (filaprom) and other surface activity. Dataset includes a mono TIFF from Autostakkert and a finished JPG. First image with my new 0.3A Solar Spectrum Ha filter! Double stacked with Lunt Ha filter to increase limb detail and contrast

      Dataset author
      Mark Johnston
      T-22

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      • Type of target
        ............................................................................................................................
        Sun
      • Camera
        ............................................................................................................................
        Player One Apollo-M IMX174M with cooler
      • Target coordinates
        ............................................................................................................................
        RA 00 00 00.0 Dec 00 00 00
      • Hemisphere
        ............................................................................................................................
        Northern
      • Telescope location
        ............................................................................................................................
        United States of America
      • Transient event
        ............................................................................................................................
        Yes
      • Observed on
        ............................................................................................................................
        08 Sept 2025 - 09 Sept 2025
      Filter
      Avg Exp (s)
      Total Exposure
      Subframes
      Halpha180030m1

      Filaprom Sept 8 2025