Contains: IC 4996, Crescent nebula, NGC 6888, The star 36Cyg, The star 34Cyg, The star 29Cyg, The star 28Cyg
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Crescent Nebula in Ha

Technical card

Imaging telescope or lens: Canon FD 200mm f/2.8 S.S.C.

Imaging camera: ZWO ASI174MM

Mount: Sky-Watcher HEQ5 PRO

Guiding telescope or lens: Skywatcher ST80

Guiding camera: ZWO ASI034MC

Software: Deep Sky StackerGIMP 2.9PHD2 Guiding

Filter: Baader Ha 7nm 2"

Resolution: 1931x1213

Dates: Aug. 16, 2016

Frames: Baader Ha 7nm 2": 17x300" (gain: 32.00) 7C

Integration: 1.4 hours

Darks: ~18

Avg. Moon age: 12.78 days

Avg. Moon phase: 95.61% job: 1200044

RA center: 303.273 degrees

DEC center: 38.292 degrees

Pixel scale: 6.182 arcsec/pixel

Orientation: -101.175 degrees

Field radius: 1.957 degrees

Locations: Home, Stanford in the Vale, Oxfordshire, United Kingdom



Jonathan Edgecombe

Sky plot

Sky plot


Crescent Nebula in Ha, 


        Jonathan Edgecombe