The Whirpool Galaxy

    M 51 and NGC 5195, The Whirpool Galaxy in Canes Venatici


    Technical Details:

    Object: M 51 and NGC 5195, The whirpool Galaxy in Canes Venatici
    Observing Site: Azor Observatory, Las Rozas, Madrid, Spain. 18.84 mag arcsec-2
    Date: 2009 February 23 (Luminance) and  24 (rgb)
    Camera: SBIG STL-11000M @ -20ºC
    Telescope: ASA N10 Astrograph @ f/3.6, Astrophysics AP1200 mount
    Filters: Astrodon Luminance NIR Blocked and i-series RGB
    Exposure: 260 minutes (L 20x10 min subs); RGB ( 6x10 minutes each)
    Processing Software: Maxim DL, Photoshop
    Comments: CCD Commander used for unattended data acquisition. Shown at 50% size


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