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Contains:  IC 4592, The star υOph, The star ψOph, The star χOph, The star φOph, The star νSco, The star Yed Posterior (εOph), The star Yed Prior (δOph), The star Graffias (β1Sco), The star ζOph, The star Sabik (ηOph), Part of the constellation Ophiuchus (Oph)

Image of the day 09/05/2018

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    Sh2-27 Zeta Ophiuchi Nebula, 


            John Gleason
    Sh2-27 Zeta Ophiuchi Nebula

    Sh2-27 Zeta Ophiuchi Nebula

    Technical card

    Imaging telescope or lens:Takahashi FSQ Fluorite

    Imaging camera:FLI PL16803

    Mount:Paramount ME

    Software:MaximDL 5

    Filter:Astrodon 5nm Halpha

    Resolution: 4096x4180

    Dates:June 1, 2018

    Frames: 150x1800"

    Integration: 75.0 hours

    Avg. Moon age: 17.41 days

    Avg. Moon phase: 92.29% job: 2221930

    RA center: 249.470 degrees

    DEC center: -11.647 degrees

    Pixel scale: 15.076 arcsec/pixel

    Orientation: 0.498 degrees

    Field radius: 12.252 degrees

    Data source: Own remote observatory


    Very large, diffuse nebula in the constellation Ophiuchus. This is a 25 tile mosaic in Hydrogen alpha. Part of a 300 tile southern milky way mosaic in progress. Processing style enabled the visibility of faint background hydrogen alpha gas that fills the extent of the entire region well beyond the confines of this image.



    John Gleason

    Sky plot

    Sky plot


    Sh2-27 Zeta Ophiuchi Nebula, 


            John Gleason