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Contains:  NGC 6914

Image of the day 08/31/2019

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    NGC 6914 - A bit of Cyan in a Sea of Red, 





    
        

            Kevin Morefield
    NGC 6914 - A bit of Cyan in a Sea of Red

    NGC 6914 - A bit of Cyan in a Sea of Red

    Technical card

    Resolution: 4043x3587

    Dates:Aug. 25, 2019

    Frames: 123x809"

    Integration: 27.6 hours

    Avg. Moon age: 24.01 days

    Avg. Moon phase: 30.66%

    Astrometry.net job: 2882492

    RA center: 306.127 degrees

    DEC center: 42.454 degrees

    Pixel scale: 0.728 arcsec/pixel

    Orientation: 309.289 degrees

    Field radius: 0.546 degrees

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

    Data source: Own remote observatory

    Remote source: Sierra Remote Observatories

    Description

    This is a blend of Ha and Luminance for Luminance with Ha also added to the Red Channel. The Blue and Green channels were deconvolved a bit to try and match the star sizes with red channel.

    I wanted to blend the Luminance and Ha using PixelMath so that I could lean more on the Ha for the star size but equally blend the nebula. After trying for an hour or two to create a function to compress the Luminance data after a certain point (.01 to be explicit) , I called on my recent CS grad son who gave me the function I needed. It cut the Star peaks by over half and allowed me to sum the Ha and Luminance. The effect was good but not earth shattering. We may work more on this approach in future images.

    Comments

    Author

    morefield
    Kevin Morefield
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    NGC 6914 - A bit of Cyan in a Sea of Red, 





    
        

            Kevin Morefield