Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  HD200102

Image of the day 08/25/2022

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    The Bonfire Nebula | In the Canadian Portion of NGC 7000, 



    
        

            Kevin Morefield
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    The Bonfire Nebula | In the Canadian Portion of NGC 7000

    Image of the day 08/25/2022

    Getting plate-solving status, please wait...
      The Bonfire Nebula | In the Canadian Portion of NGC 7000, 



    
        

            Kevin Morefield
      Powered byPixInsight

      The Bonfire Nebula | In the Canadian Portion of NGC 7000

      Acquisition details

      Dates:
      Aug. 12, 2022
      Frames:
      Astrodon H-alpha 5nm 50x50 mm: 39×900(9h 45′) (gain: 25.00) -10°C bin 1×1
      Astrodon OIII 3nm 50x50 mm: 40×900(10h) (gain: 25.00) -10°C bin 1×1
      Astrodon SII 3nm 50x50 mm: 40×900(10h) (gain: 25.00) -10°C bin 1×1
      Integration:
      29h 45′
      Darks:
      20
      Flats:
      20
      Avg. Moon age:
      15.26 days
      Avg. Moon phase:
      99.72%
      Bortle Dark-Sky Scale:
      3.00

      RA center: 20h59m23s.985

      DEC center: +45°0200.13

      Pixel scale: 0.304 arcsec/pixel

      Orientation: -148.916 degrees

      Field radius: 0.460 degrees

      WCS transformation: thin plate spline

      More info:Open 

      Resolution: 8856x6350

      File size: 5.4 MB

      Locations: Sierra Remote Observatory, Auberry, California, United States

      Data source: Own remote observatory

      Remote source: Sierra Remote Observatories

      Description

      I first noticed this strong Ha emission feature in a widefield I shot of the North American and Pelican area in Cygnus.  I was surprised how seldom it was imaged by itself with a longer FL setup - practically never.  So here it is and I've taken the liberty to call it the Bonfire Nebula.

      Cygnus is high this time of year in the Northern Hemisphere and we have had superb conditions both in lack of smoke and excellent seeing.  The subs here ranged from 1.3" to 2" averaging around 1.7"  

      The data is all SHO, combined in starless form using the dynamic blend I've described previously.  The stars were removed with StarXterminator and I isolated them by subtracting the starless from the with star SHO masters.  The stars were combined and color balance separately also using the dynamic blend method.  This yields decent star color out of just narrowband data.  Not accurate star colors but close.  The stars were added back in at the end of the process in PS using a sreen layer.

      The strength of the SII and Ha and the relative weakness of the OIII yielded the bright yellow-orange highlights.  This color and the shape of the nebula reminding me of a bonfire.

      Comments

      Revisions

        The Bonfire Nebula | In the Canadian Portion of NGC 7000, 



    
        

            Kevin Morefield
        Original
        The Bonfire Nebula | In the Canadian Portion of NGC 7000, 



    
        

            Kevin Morefield
        D
      • Final
        The Bonfire Nebula | In the Canadian Portion of NGC 7000, 



    
        

            Kevin Morefield
        E

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      Sky plot

      Histogram

      The Bonfire Nebula | In the Canadian Portion of NGC 7000, 



    
        

            Kevin Morefield

      In these public groups

      QHY Users Group
      Narrowband imaging