Page 5 Pelican Color plus Narrow Band

                       Astrophotography by Keith B. Quattrocchi

                   NGC 5070
                  Pelican Nebula in Cygnus
                   Combined LRGB and Narrow Band Image
                       Published in "Astonomy" Gallery, May 2008


                                      Image Acquisition Information                      
                               Telescope:   16" RCOS Ritchey-Chretien Telescope (ion milled at f/9) 
                               Location:     The "Lost valley Observatory", located
                                                 at "Sierra Remote Observatories" in
                                                 the Sierra Nevada Mountains of California 
                               Camera:       SBIG STL-6303
                               Guiding:       SBIG Adaptive Optics, Astrodon  MOAG AOG
                               Filters:        Astrodon L, R, G, B, Ha, SII, OIII
                               Mount:        Software Bisque Paramount ME
                               Acquisition Programs:   The Sky,CCDAutopliot III, CCD Soft. 
                               Processing ProgramsCCDStack, Maxim DL, Photoshop
                               Date:July 7-August 11, 2007                              
                               Time: 1)  LRGB (Ha/Red Combined)::18 x 20 minutes x 5 (30 hours)
                                       2)  Plus SII/Ha/OIII : 18 x 20 minutes x 3 (18 hours). 
                                       3)  Total imaging time: 42 hours.
                                            (Ha used for both LR'GB and NB images).                 
                               Processing:  CCD Stack and PhotoShop CS/2
Image Information:  The Pelican Nebula (IC 5070) is part of a large star forming region with large dust clouds obscuring portions of bright ionized gas. The entire nebula is over 30 light years in size and about 2,000 light years away
Processing Comments This image was created by blending (Luminosity Mode in Photoshop CS/2) both the LRGB image (Red channel was a blend of red and H-alpha) with the Narrow Band image (SII, Ha, OIII using Hubble Palette).  Additional processing with curves, High Pass Filter and Kodac Gem.

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