Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  IC 4996  ·  NGC 6888  ·  The star 34Cyg  ·  The star 36Cyg
NGC6888 alias Crescent Nebula, 



    
        

            Riccardo A. Ballerini
NGC6888 alias Crescent Nebula
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NGC6888 alias Crescent Nebula

NGC6888 alias Crescent Nebula, 



    
        

            Riccardo A. Ballerini
NGC6888 alias Crescent Nebula
Powered byPixInsight

NGC6888 alias Crescent Nebula

Equipment

Imaging Cameras
SBIG ST-8300M
Mounts
Gemini G41 Observatory
Filters
Baader Planetarium H-alpha 7nm (36mm) · Baader Planetarium L 36mm · Baader Planetarium SII 8.5nm 36mm · Baader Planetarium RGB (36mm)
Accessories
SBIG Filter Wheel FW8-8300
Software
PHD guiding · PixInsight · Equinox Image
Guiding Telescopes Or Lenses
Celestron 8x50 Finder
Guiding Cameras
Starlight Xpress Lodestar Lodestar

Acquisition details

Dates:
Aug. 12, 2013
Frames:
Baader Planetarium H-alpha 7nm (36mm): 6x1200" (2h) bin 1x1
Baader Planetarium L 36mm: 24x300" (2h) -15°C bin 1x1
Baader Planetarium RGB (36mm): 9x180" (27') bin 2x2
Baader Planetarium SII 8.5nm 36mm: 2x1200" (40') bin 1x1
Integration:
5h 7'
Avg. Moon age:
5.38 days
Avg. Moon phase:
29.29%
Bortle Dark-Sky Scale:
1.50

Basic astrometry details

Astrometry.net job: 3467549

RA center: 20h14m57s.6

DEC center: +38°2624

Pixel scale: 2.884 arcsec/pixel

Orientation: 81.861 degrees

Field radius: 1.683 degrees

Resolution: 3352x2532

Data source: Traveller

Description

NGC6888 aka Crescent Nebula LRGB

Comments

Sky plot

Sky plot

Histogram

NGC6888 alias Crescent Nebula, 



    
        

            Riccardo A. Ballerini