Astrophotography by Keith B. Quattrocchi


NGC 6820
 Emission Nebula in Vulpecula 
Narrow Band in SHO Palette  

Copyright 2025
Keith B Quattrocchi

Image Acquisition Information  
                    
Telescope: 16" RCOS Richey Chretien Telescope (ion milled at f/9) 
Camera: ZWO Full Frame Back Illuminated CMOS ASI 6200 MM
Guiding: Starlight Xpress AO with UltraStar Autoguiding Camera (AO control using maxim DL software).
Filters: Astrodon LRBG, H-alpha, S-II and OIII Filters
Acquisition Programs: NINA, The SkyX, PHD2, PWI4
Processing Programs: PixInsight, RC Astro, CCDStack, Photoshop CS4
Date: Data processed September 5, 2021.  Data acquisition: August 11 - September 2, 2025                             
Time:  8 hours (10 minute exposures) for each of Ha, SII. OIII for a total of 24 hours.                              

Image Information: NGC 6320 is an emission nebula in Vulpecula.

Processing Information  This Ha/SII/OIII images were obtained using  AstroDon filters.  The Ha/S-II/OIII images were batch processed (calibrated, registered, normalized and integrated in PixInsignt.   The SHO image was further processed in Photoshop.  Further stretching, high pass filtering and background smoothing was performed with Adobe Photoshop CS/4 and PixInsight.