Astrophotography by Keith B. Quattrocchi

                   NGC 7023: The Iris Nebula
                   Reflection Nebula in Cepheus
                  L-LRGB Image
                                       Copyright 2017
                                       Keith B Quattrocchi


                                      Image Acquisition Information                      
                               Telescope: 16" RCOS Richey Chretien Telescope (ion milled at f/9) 
                               Camera:    SBIG STL-11000
                               Guiding:     SBIG AOL
                               Filters:       LRBG Filters
                               Mount:       Software Bisque Paramount ME
                               Acquisition Programs:   The SkyX, CCDAutopilot 5, FocusMax 
                               Processing ProgramsCCDStack, Photoshop CS4.
                               Date: Data processed July 18, 2017.  Data aquisition: July 10, 2017-
                               July 17,2017                              
                               Time: 10 x20 min 3.33 hours) for each of L,R,G,B for a total of 13.33
                               Processing:  CCD Stack and PhotoShop CS/4
Image Infornmation: MIC 7023 is a reflection nebula in Cepheus. 
Processing Infornmation  This LRGB images were obtained using  AstroDon filters.  The LRGB images were assembled in CCDStack.  The assembled image and a Luminence were recombined in Photoshop.  Further stretching, high pass filtering and background smoothing was performed with Adobe Photoshop CS/4.  All data stretching was by minimal stretching with gamma and DDP in CCD Stack and then further stretching with curves/levels in photoshop.   

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