Astrophotography by Keith B. Quattrocch

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: BIG STL-11000
Guiding: BIG AOL
Filters: LRBG Filters
Mount: Software Bisque Paramount ME
Acquisition Programs:   The SkyX, CCDAutopilot 5, FocusMax 
Processing Programs: CCDStack, 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 hours.                              
Processing:  CCD Stack and PhotoShop CS/4

Image Information: MIC 7023 is a reflection nebula in Cepheus. 

Processing Information  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.