Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888
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NGC6888 - the Crescent Nebula from south Corse in Ha+O3+LRGB, 


            Gianni Cerrato
NGC6888 - the Crescent Nebula from south Corse in Ha+O3+LRGB
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NGC6888 - the Crescent Nebula from south Corse in Ha+O3+LRGB

Technical card

Imaging telescopes or lenses: Tecnosky RC8 Carbon

Imaging cameras: ZWO Optical ASI1600MM-Cool

Mounts: SkyWatcher AZ-EQ6 GT

Guiding telescopes or lenses: Tecnosky 80/600 acromatico

Guiding cameras: lacerta mgen2

Software: photoshop  ·  ESA/ESO/NASA FITS Liberator 3.0  ·  Adobe Lightroom 3  ·  PixInsight

Filters: Baader O3 1.25'' 8.5nm  ·  Baader Planetarium H 1.25", Ha 7nm  ·  ZWO LRGB 31.8 filters

Accessory: ZWO EFW 1.25

Dates:Sept. 17, 2020Sept. 19, 2020Sept. 21, 2020

ZWO LRGB 31.8 filters: 60x180" bin 1x1
Baader Planetarium H 1.25", Ha 7nm: 20x180" (gain: 134.00) -20C bin 1x1
Baader O3 1.25'' 8.5nm: 30x180" bin 1x1

Integration: 5.5 hours

Avg. Moon age: 2.35 days

Avg. Moon phase: 9.52%

Bortle Dark-Sky Scale: 2.00

Temperature: 18.00

Basic astrometry details

Astrometry.net job: 3901735

RA center: 20h 12' 3"

DEC center: +38° 21' 3"

Pixel scale: 0.619 arcsec/pixel

Orientation: 142.812 degrees

Field radius: 0.270 degrees

Resolution: 2500x1890

Locations: Palombaggia, Porto Vecchio, France

Data source: Traveller


unfortunately it is a crop, the result of 3 troubled nights where I persisted in photographing it, but by now there was passage of clouds from the mountains to the sea, and after 11 consecutive nights of telescope I falter!