1. posterid:1111454
  2. Finally smokeless, cloudless and moonless sky. Imaged NGC 206.

Re: Finally smokeless, cloudless and moonless sky. Imaged NGC 206.

Stuart Heggie <stuart.j.heggie@...>
 

Peter, that is a beautiful image! Thanks for including all the capture and processing details as it adds to our ability to appreciate your image.

Stuart

On Sat, 13 Oct 2018 at 17:38, pnagy@... [ap-gto] <ap-gto@...> wrote:
 

Finally smokeless, cloudless and moonless sky last night after about four months. I imaged NGC 206 which a small blue cluster (at center of image) located at the edge of M31. Capturing and blending Luminance image with RGB really makes a huge difference as compared to just processing RGB.


High resolution at: https://peternagy.smugmug.com/Telescopes/Galaxies/i-jQJFt62/A


NGC 206. RGB + Luminance. 0.93"/pixel image scale.


Astrodon I series Red filter, 18 x 4 minutes, 1x1. 10/12/2018.
Astrodon I series Green filter, 18 x 4 minutes, 1x1. 10/12/2018.
Astrodon I series Blue filter, 18 x 4 minutes, 1x1. 10/12/2018.
Astrodon I series Lum filter, 54 x 4 minutes, 1x1. 10/12/2018.


Total 7.2 hours.


TEC 140 APO F/7 with TEC Field Flattener, Astro-Physics A-P1100GTO GEM with absolute encoders. QSI660wsg. OAG and Ultrastar autoguider (1.31"/sec), Optec Handy Stepper Motor focuser.


Captured and automated with SGP. Calibration and Post-processed with PixInsight. PHD2 settings: RA Aggressiveness: 60, RA Hysteresis: 10, Max RA/Dec Duration: 2000, Min Move: 0.60 (0.8" guide camera), Calibration Steps: 300msec, Auto/Resist Switching, Auto guiding exposure and extreme dithering.


Peter




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