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Cygnus Region HaRGB - 8 panel mosaic Reprocessed

Technical card

Imaging telescope or lens: William Optics Zenithstar 66

Imaging camera: Moravian G2-8300

Mount: Skywatcher AZ-EQ6 GT

Guiding telescope or lens: SkyWatcher Finder/Guider 9x50

Focal reducer: William Optics flat 6

Software: PixInsight 1.8Sequence Generator ProPhotoshop C6

Filters: Astrodon LRGBastrodon Ha 5nm

Resolution: 4263x2744

Dates: July 19, 2015July 20, 2015

Frames:
Astrodon LRGB: 96x180" -20C bin 2x2
astrodon Ha 5nm: 56x300" -20C bin 1x1

Integration: 9.5 hours

Darks: ~50

Flats: ~25

Bias: ~100

Avg. Moon age: 3.66 days

Avg. Moon phase: 14.58%

Astrometry.net job: 725538

Description

Reprocessing of my previous image : http://www.astrobin.com/197975/

The field is 8x5.21 deg.
Included DSOs : NGC6888 (Crescent Nebula), M29, NGC6910, NGC6914, IC1311.
Two nights of acquisition in center France during my holidays. It's the first time a make such a mosaic and it was very hard for me to process all the images. There is still a lot of noise due to the small amount of images.

Capture :
July 19, 2015 : Ha
July 20, 2015 : RGB
Auvergne, France

Setup :

Acquisition :
William optics Zenithstar 66
William optics Flatener 6
Moravian G2-8300
Astrodon 5nm Ha filter
Astrodon TruBalance R,G,B filters.

Guiding :
Skywatcher 8x50 Finderscope
QHY5LII-C camera

Mount :
Skywatcher AZ-EQ6 GT
Acquisition :
Ha : 7 x 5mn bin 1x1 for each panel (Total = 56 x 5mn).
R,G,B : 4 x 3mn bin 2x2. for each panel (Total = 96 x 3mn).
100 Bias bin 1x1, bin 2x2 (Superbias)
50 darks bin 1x1, bin 2x2
25 flats for each channel

Softwares:
Acquisition : Sequence Generator Pro
Guiding : PHD2
(pre)Processing : PixInsight 1.8
Mosaic and cosmetic : Photoshop CS6

Processing :
Preprocessing as usual, done manually (without BatchPreprocessing).
R,G,B of each panel has been aligned on the Ha channel using 2D-Spline and disortion correction.
A HaRGB image has been made for each panel using the NBRGB script.
The mosaic has been done with Photomerge (PS CS6)
The mosaic has been processed with PixInsight 1.8

Comments

Author

Nicolas Kizilian
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Cygnus Region HaRGB - 8 panel mosaic Reprocessed, 




    

        Nicolas Kizilian