Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble nebula  ·  NGC 7635

Image of the day 10/18/2018

    Bubble Nebula (bicolor), 



    
        

            John Renaud
    Bubble Nebula (bicolor)
    Powered byPixInsight

    Bubble Nebula (bicolor)

    Image of the day 10/18/2018

      Bubble Nebula (bicolor), 



    
        

            John Renaud
      Bubble Nebula (bicolor)
      Powered byPixInsight

      Bubble Nebula (bicolor)

      Equipment

      Imaging Telescopes Or Lenses
      Sky-Watcher Esprit 150ED
      Imaging Cameras
      Atik One
      Mounts
      Astro-Physics 1100GTO
      Filters
      Astrodon 5nm Ha · Astrodon 3nm OIII
      Accessories
      Atik OAG
      Software
      PixInsight · Photoshop · Sequence Generator Pro · PHD2
      Guiding Cameras
      SX Ultrastar

      Acquisition details

      Dates:
      Aug. 16, 2018 ·  Sept. 18, 2018 ·  Sept. 19, 2018 ·  Oct. 1, 2018 ·  Oct. 2, 2018 ·  Oct. 3, 2018
      Frames:
      Astrodon 3nm OIII: 51x900" (12h 45') -5°C bin 1x1
      Astrodon 5nm Ha: 39x900" (9h 45') -5°C bin 1x1
      Integration:
      22h 30'
      Avg. Moon age:
      15.12 days
      Avg. Moon phase:
      52.67%

      Basic astrometry details

      Astrometry.net job: 2303485

      RA center: 23h20m40s.6

      DEC center: +61°1055

      Pixel scale: 0.435 arcsec/pixel

      Orientation: 177.903 degrees

      Field radius: 0.236 degrees

      Resolution: 3000x2500

      Data source: Backyard

      Description

      I thought I was going to run out of time on this one and nearly abandoned it for the year but three [mostly] clear nights in early October brought it back to life. Very challenging to process overall but, in particular, star control was a big challenge... I went back to the drawing board a couple of times to better address the stars but finally decided to move on.

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      Bubble Nebula (bicolor), 



    
        

            John Renaud