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I agreeImaging telescopes or lenses: Canon EF 70-200 f/4 L IS USM · Sky-Watcher 200/1000 PDS
Imaging cameras: ZWO ASI 294MC Pro
Mounts: Sky-Watcher AZ EQ6-GT
Guiding telescopes or lenses: Artesky Ultraguide 60/240 mm
Guiding cameras: ZWO ASI 120 MM Mini
Focal reducers: Baader MPCC Mark III
Software: Adobe Photoshop CC · Sequence Generator Pro · PixInsight
Filters: Baader OIII 2.0" 7nm CCD · Baader Ha 2" 7nm CCD · L-Pro 2"
Dates:March 2, 2019 , March 8, 2019 , April 12, 2020 , April 17, 2020
Frames:
Baader Ha 2" 7nm CCD: 57x300" (gain: 120.00) -10C bin 1x1
Baader Ha 2" 7nm CCD: 14x480" (gain: 120.00) -20C bin 1x1
L-Pro 2": 14x300" (gain: 120.00) -20C bin 1x1
Baader OIII 2.0" 7nm CCD: 78x300" (gain: 250.00) -10C bin 1x1
Integration: 14.3 hours
Darks: ~26
Flats: ~26
Flat darks: ~31
Bias: ~21
Avg. Moon age: 17.92 days
Avg. Moon phase: 29.73%
Bortle Dark-Sky Scale: 7.00
Mean SQM: 18.50
Temperature: 7.50
Astrometry.net job: 3435329
RA center: 20h 11' 24"
DEC center: +38° 42' 39"
Pixel scale: 4.937 arcsec/pixel
Orientation: 294.037 degrees
Field radius: 3.409 degrees
Resolution: 4116x2788
Locations: Home Backyard, Meda, Milano, Italy
Data source: Backyard
This is part 1 of a bigger mosaic that i’m planning to shoot. It shows a small part of the Cygnus nebular complex with the Crescent Nebula at his center.
The Crescent Nebula is an emission nebula probably formed by the outer layers of a Wolf-Rayet star found at its center.
This is a merge of an HOO image taken with a Canon photo lens and an HRGB image taken one year ago with a 200/1000 newtonian.
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