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Contains:  NGC 3754, NGC 3753, NGC 3751, NGC 3750, NGC 3748, NGC 3746, Copeland's Septet, NGC 3745

Image of the day 05/22/2019

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    NGC 3753 (Copeland's Septet), 





    
        

            DetlefHartmann
    NGC 3753 (Copeland's Septet)

    NGC 3753 (Copeland's Septet)

    Technical card

    Imaging telescope or lens:Selfmade 443/2048 Newtonian f4.6

    Imaging camera:SBIG ST-10 XME

    Mount:Sideres85

    Software:PixInsight

    Filter:SBIG CFW-9

    Accessories:SBIG AO-8Baader RCC-1 Coma Corrector

    Resolution: 4322x2898

    Dates:March 18, 2018March 30, 2019

    Frames: 132x300" -30C

    Integration: 11.0 hours

    Avg. Moon age: 12.59 days

    Avg. Moon phase: 14.79%

    Bortle Dark-Sky Scale: 2.00

    Mean SQM: 21.70

    Mean FWHM: 2.52

    Astrometry.net job: 2695469

    RA center: 174.470 degrees

    DEC center: 21.981 degrees

    Pixel scale: 0.343 arcsec/pixel

    Orientation: 359.908 degrees

    Field radius: 0.248 degrees

    Data source: Own remote observatory

    Description

    NGC 3753 technical data / Telescope: Newtonian (d=443mm, f=2048mm) / Location: Emberger Alm, Kaernten, Austria / Camera: SBIG ST-10XME with AO-8 and CFW-9 / Exposure: 11 hours (luminance 72x5 min. bin 1x1, red 15x5 min. bin 2x2, green 15x5 min. bin 2x2, blue 30x5 min. bin 2x2)

    Comments

    Author

    DetlefHartmann
    DetlefHartmann
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    NGC 3753 (Copeland's Septet), 





    
        

            DetlefHartmann