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Contains:  Extremely wide field

Image of the day 02/11/2013

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    Orion (constellation), 





    
        

            ruediger
    Orion (constellation)

    Orion (constellation)

    Technical card

    Resolution: 3000x1998

    Dates:Nov. 28, 2011Jan. 3, 2012Jan. 18, 2012Jan. 8, 2013

    Frames:
    62x180" ISO800
    18x360" ISO800
    Astronomik Clip-Filter (EOS)/H-Alpha-CCD 12nm: 63x360" ISO800

    Integration: 11.2 hours

    Avg. Moon age: 15.77 days

    Avg. Moon phase: 31.56%

    Bortle Dark-Sky Scale: 4.00

    Mean SQM: 20.18

    Temperature: 10.75

    Astrometry.net job: 86885

    RA center: 83.326 degrees

    DEC center: -0.021 degrees

    Pixel scale: 28.626 arcsec/pixel

    Orientation: 89.667 degrees

    Field radius: 14.331 degrees

    Description

    Orion (constellation) widefield RGB + H-Alpha.

    The RGB data was taken in the north of thailand with pretty dark skies and good to very transparency.
    The H-Alpha was shot from the balcony in my home town in germany, with only suburban skies and medium to bad transparency. For all frames I used f2,8 @ ISO 800.

    I blended the H-Alpha data into the red channel with the max-operator while the data was still linear.

    Comments

    Author

    ruediger
    ruediger
    License: None (All rights reserved)
    132616
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    Orion (constellation), 





    
        

            ruediger