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      HOO as no useable S2
      Wallpaper author:
      Peter Cole

      12 Oct 2025

      HOO as no useable S2

      Stunning image or it should be. There are 3 sets of data taken over 2 years. So you need to use Blink.

      It shows as they don't all line up and are of varying quality. Especially the S2 which once you discard about half of them leaves you with very little to work with. Then on integration they are tilted sharpley anti clockwise which makes them unusable. So your left with HOO. You can merge the best of the 2 data sets though your better off making 2 images. Along with a moderate crop.

      Dataset from which the image was processed

      NGC 1955

      8 credit

      Open
      Telescope Live
      CHI-1-CCD
      • Type of target
        ............................................................................................................................
        Emission Nebula
      • Camera
        ............................................................................................................................
        FLI ProLine PL9000
      • Target coordinates
        ............................................................................................................................
        RA 81.55 Dec -67.48333
      • Hemisphere
        ............................................................................................................................
        Southern
      • Telescope location
        ............................................................................................................................
        Chile
      • Transient event
        ............................................................................................................................
        No
      • Observed on
        ............................................................................................................................
        17 Dec 2020 - 16 Nov 2022
      Filter
      Avg Exp (s)
      Total Exposure
      Subframes
      Halpha3073h45m44
      OIII3073h45m44
      SII2863h25m43

      HOO as no useable S2