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Imaging camera:ZWO ASI1600MM-Cool
Guiding telescopes or lenses:
Guiding camera:ZWO ASI120MM
Focal reducer:SkyWatcher 0.85x Reducer/Flattener for ED80
Accessory:ZWO EFW 8x1,25"
Dates:July 8, 2017 , July 9, 2017 , July 10, 2017 , July 13, 2017 , July 16, 2017 , July 17, 2017 , July 18, 2017 , July 19, 2017 , July 20, 2017 , July 23, 2017 , July 25, 2017 , July 29, 2017 , Aug. 1, 2017 , Aug. 16, 2017 , Sept. 18, 2018 , Sept. 19, 2018 , Sept. 20, 2018 , Sept. 21, 2018 , Sept. 26, 2018 , Sept. 30, 2018 , Oct. 1, 2018 , Oct. 2, 2018 , Oct. 4, 2018 , Oct. 5, 2018 , Oct. 8, 2018 , Oct. 9, 2018 , Oct. 10, 2018 , Oct. 11, 2018 , Oct. 12, 2018 , Oct. 14, 2018 , Oct. 15, 2018 , Oct. 16, 2018 , Oct. 17, 2018
ZWO B 1.25": 120x120" (gain: 76.00) -15C bin 1x1
ZWO G 1.25": 120x120" (gain: 76.00) -15C bin 1x1
Optolong Ha 7nm: 42x300" (gain: 139.00) -10C bin 1x1
Optolong Ha 7nm: 14x300" (gain: 139.00) -11C bin 1x1
Optolong Ha 7nm: 50x300" (gain: 139.00) -12C bin 1x1
Optolong Ha 7nm: 40x300" (gain: 139.00) -13C bin 1x1
Optolong Ha 7nm: 423x300" (gain: 139.00) -15C bin 1x1
Optolong OIII 6.5nm: 15x300" (gain: 139.00) -10C bin 1x1
Optolong OIII 6.5nm: 14x300" (gain: 139.00) -11C bin 1x1
Optolong OIII 6.5nm: 77x300" (gain: 139.00) -12C bin 1x1
Optolong OIII 6.5nm: 203x300" (gain: 139.00) -15C bin 1x1
ZWO R 1.25": 123x120" (gain: 76.00) -15C bin 1x1
Integration: 85.3 hours
Flat darks: 0
Avg. Moon age: 13.90 days
Avg. Moon phase: 45.74%
Bortle Dark-Sky Scale: None
Mean SQM: None
Mean FWHM: None
Astrometry.net job: 3250932
RA center: 2h 43' 18"
DEC center: +61° 5' 34"
Pixel scale: 3.690 arcsec/pixel
Orientation: 352.852 degrees
Field radius: 3.079 degrees
Data source: Backyard
I shot these targets together for the first time last year. Although I considered last year's image good at that time, my processing skills got better and I found that the data allowed to bring more details into view. As I was not happy with the quality of the optics I used last year, I started over, now with the SkyWatcher 72ED mounted on the EQ6-R. FWHM in the final stacks was 1.4 - 1.8px.
For the final image, I used the narrowband data from last year too, included only at the dark side of the histogram.
Somehow, I hope I don't need to start over next year :)
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