Astrophotography by Keith B. Quattrocch

NGC 4725
 Spiral Galaxy in Coma Berenices 
LRGB Image 
Published in Sky & Telescope Gallery: November 2018

Copyright 2018 
Keith B Quattrocchi

Image Acquisition Information  
                    
Telescope: 16" RCOS Richey Chretien Telescope (ion milled at f/9) 
Camera: SBIG STL-6303
Guiding: BIG AOL
Filters: Astrodon LRBG Filters
Acquisition Programs: The SkyX, CCDAutopilot 5, FocusMax 
Processing Programs: CCDStack, Photoshop CS4.
Date: Data processed May 19, 2018.  Data aquisition: April 19, 2018-April 22,2018                              
Time:  8 x20 min 2.66 hours) for each of L,R,G,B for a total of 10.66 hours.                              
Processing:  CCD Stack and PhotoShop CS/4

Image Information: NGC 4725 is a barred spiral galaxy in Coma Berenices. 

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 without DDP CCD Stack and then further stretching .