Contains:  Bubble nebula, NGC 7635

Image of the day 10/18/2018

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    Bubble Nebula (bicolor), 





    
        

            John Renaud
    Bubble Nebula (bicolor)

    Bubble Nebula (bicolor)

    Technical card

    Resolution: 3000x2500

    Dates:Aug. 16, 2018Sept. 18, 2018Sept. 19, 2018Oct. 1, 2018Oct. 2, 2018Oct. 3, 2018

    Frames:
    Astrodon 3nm OIII: 51x900" -5C bin 1x1
    Astrodon 5nm Ha: 39x900" -5C bin 1x1

    Integration: 22.5 hours

    Avg. Moon age: 15.12 days

    Avg. Moon phase: 52.67%

    Astrometry.net job: 2303485

    RA center: 350.169 degrees

    DEC center: 61.182 degrees

    Pixel scale: 0.435 arcsec/pixel

    Orientation: 177.903 degrees

    Field radius: 0.236 degrees

    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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    qbool
    John Renaud
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    Bubble Nebula (bicolor), 





    
        

            John Renaud