AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.
I agreeImaging telescopes or lenses:William Optics Zenithstar 66
Imaging cameras:Moravian G2-8300
Mounts:Skywatcher AZ-EQ6 GT
Guiding telescopes or lenses:SkyWatcher Finder/Guider 9x50
Focal reducers:William Optics flat 6
Software:PixInsight 1.8 , Sequence Generator Pro , Photoshop C6
Filters:astrodon Ha 5nm , Astrodon LRGB
Dates:July 19, 2015 , July 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
Resolution: 4263x2744
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