s171_asaf3_hst_v1_33.jpg (240544 bytes)

    Sharpless 171 and Berkeley 59, HII region and open cluster in Cepheus

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    Technical Details:

    Object: S171 in Cepheus
    Observing Site: Azor Observatory, Las Rozas, Madrid, Spain. 18.84 mag arcsec-2
    Date: Data acquired on July 13-14 (Ha), August 30, 31 (OIII) and September 3 (SII). 2008 
    Camera: SBIG STL-11000M @ -15ºC
    Telescope: ASA N10 Astrograph @ f/3.6, Astrophysics AP1200 mount
    Filters: Astrodon 6nm H alpha, OIII and SII
    Exposure: 1140 minutes (19 hours, 38x30 min subs)
    Processing Software: Maxim DL, Photoshop
    Comments: CCD Commander used for unattended data acquisition. Shown at 33% size


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