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      NGC3324 - April Contest
      Wallpaper author:
      JEAN-BAPTISTE LEPRINCE

      20 Apr 2023

      NGC3324 - April Contest

      Processing notes :

      After several integration trials, I decided to use Ha only for the Luminance.

      The signal was so good that I deliberatley wanted NOT to oversharpen the nebula area, especially the center where you can end with huge "black" areas.

      I tried to keep a smooth rendering while maintaining the variation in the center.

      I treid to maintain sharpness "around the head" to emphasize the center of the image.

      On the other hand, I wanted to have sharp stars and I had a "manual" deconvolution of my own dedicated to the stars shape with a a dedicated stretch.

      SHO composition for nebula colours; I tried to keep the composision hue variation in the result, with orange / yellow / green / cyan / blue / magenta

      HOO composition + SPCC for the stars colours

      Clear skies :-)

      Dataset from which the image was processed

      NGC 3293

      10 credit

      Open
      Telescope Live
      CHI-1-CCD
      • Type of target
        ............................................................................................................................
        Open Cluster
      • Camera
        ............................................................................................................................
        FLI ProLine PL9000
      • Target coordinates
        ............................................................................................................................
        RA 158.9542 Dec -58.2167
      • Hemisphere
        ............................................................................................................................
        Southern
      • Telescope location
        ............................................................................................................................
        Chile
      • Transient event
        ............................................................................................................................
        No
      • Observed on
        ............................................................................................................................
        17 Mar 2021 - 12 Jun 2022
      Filter
      Avg Exp (s)
      Total Exposure
      Subframes
      SII6004h50m29
      Halpha6004h40m28
      OIII6004h40m28

      NGC3324 - April Contest