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Saturn with ASI120MC

Posted: Tue Jul 18, 2017 8:19 pm
by turfpit
A recent capture of Saturn (July 16th 2017):
saturn.png (91.61 KiB) Viewed 1261 times
Celestron C8, CG5 mount, ASI120MC camera, no filters or barlow, Lenovo T400 laptop.

Capture details
  • 2000 frames at 50fps
  • Colour Space RAW16
  • Capture Area 320 x 240
  • Gain 90%
  • Exposure 16ms
For this camera and planet capture, Brightness=0 (to get histogram to 'whale' shape), Gamma=50 (ZWO recommendation).

SharpCap histogram
saturn-sharpcap-histogram.PNG (5.08 KiB) Viewed 1261 times
Capture method
  • Set gain=90%
  • Adjust exposure until RHS of histogram at 80%
  • PIPP, crop to 160 x 120
  • Autostakkert, 17 APs, sharpen selected, best 66% frames stacked
  • Registax, used sharpened _conv.tif file, RGB balance -> Auto Balance, no wavelets
The attached Saturn-x2.png is a Registax resize to 200% of the above. My ZWO ADC has arrived from the USA, so I can start looking at the colour fringing issue now.

At 53 degrees N, Saturn is about 16 degrees above the horizon for me.


Re: Saturn with ASI120MC

Posted: Tue Jul 18, 2017 9:14 pm
by oopfan
Thanks for all the details, Dave.

Re: Saturn with ASI120MC

Posted: Thu Jul 20, 2017 2:42 pm
by felipesg
Great Image,

Thanks for sharing.