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Contains:  Crescent nebula, IC 4996, NGC 6888
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Crescent Nebula Bicolor HaOIII, 


Crescent Nebula Bicolor HaOIII
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Crescent Nebula Bicolor HaOIII

Technical card

Imaging telescopes or lenses: Rifrattore APO 105mm F7

Imaging cameras: Moravian Instruments G3-16200

Guiding cameras: Starlight Xpress Lodestar Autoguider

Focal reducers: TS PHOTOLINE 3" Flattener

Software: PixInsight 1.8

Filters: Optolong H-alpha 7nm 2"

Dates:Aug. 24, 2016

Optolong H-alpha 7nm 2": 14x1200" -23C bin 1x1
Optolong OIII 6.5nm: 14x1200" -23C bin 1x1

Integration: 9.3 hours

Darks: ~10

Flats: ~15

Bias: ~20

Avg. Moon age: 21.44 days

Avg. Moon phase: 57.48%

Basic astrometry details job: 1217419

RA center: 20h 12' 43"

DEC center: +38° 13' 15"

Pixel scale: 1.519 arcsec/pixel

Orientation: -179.746 degrees

Field radius: 1.132 degrees

Resolution: 3336x4200

Locations: Osservatorio "A. Betti" , Imola, Bologna, Italy



License: None (All rights reserved)

Sky plot

Sky plot


Crescent Nebula Bicolor HaOIII,