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        Astrophotography by Keith B. Quattrocchi                  

              NGC 5921                  
Barred Spiral Galaxy Serpens Caput
L-LRGB Image

Published in "Astronomy" Gallery, October 1, 2009 

Copyright 2009
Keith B Quattrocchi


Picture
                
Image Acquisition Information
                             

Telescope: 16" RCOS Richey Chretien Telescope (ion milled at 6/9) 
Camera: SBIG STL-6303 M
Guiding: SBIG AOL, Astrodon  MOAG AOG (SBIG 237 with FLR)
Filters:  Astrodon Ha, SII, OIII
Mount:  Software Bisque Paramount ME
Acquisition Programs:  The Sky,CCDAutopliot III, CCD Soft. 
Processing Programs: CCDStack, Maxim DL, Photoshop
Date: June 7-June 13, 2008                              
 Time: 12x20 min ( 4 hours) each for each of L, R, G, B:
Total of 16 hours imaging time.                              
Processing:  CCD Stack and PhotoShop CS/3
 
Image Infornmation:  NGC 5921 is a barred spiral galaxy in serpens caput, approximately 65 million light years distant.  It is relatively small, measuring 4.8 x 4 arc-minutes in size and has a magnitude of 11.5.  The barred nucleus and it's multiple spiral arms can be clearly seen. 
​
Additional Comments:  Image processing with CCDStack, producing an LRGB image.  The LRGB and separate Luminance images were combined in Photoshop CS/3 (twice, first using soft light option then with the overlay option).  Further data stretching, high pass filtering and background smoothing (Kodac Gem) performed with Adobe Photoshop CS/3.


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Website Addresses:
www.lostvalleyobservatory.com
www.thelvo.com
www.thelostvalleyobservatory.com
The Lost Valley Observatory
Located at Sierra Remote Observatories
Auberry, California


Copyright 2004-2021
Keith B Quattrocchi
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  • Home
  • About the LVO
  • Live Telemetry
  • Galaxies
  • Nebulae
  • Publications
  • YouTube Videos
  • LVO Construction
  • Review Articles
  • _ _ _ _ _ _ _ _ _ _ _ _ _ _ Archived from The MAS Observatory:
  • MAS Observatory
  • MAS RC Images
  • MAS Takahashi Images
  • MAS LX-200 Images
  • M33
  • NGC 7293 (Helix Nebula)
  • Horsehead Nebula
  • Melotte 15
  • NGC 1435
  • M27 (Dumbbell Nebula)