Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  NGC 6888
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NGC6888 - Crescent nebula, 



    
        

            Samuli Vuorinen
NGC6888 - Crescent nebula
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NGC6888 - Crescent nebula

Getting plate-solving status, please wait...
NGC6888 - Crescent nebula, 



    
        

            Samuli Vuorinen
NGC6888 - Crescent nebula
Powered byPixInsight

NGC6888 - Crescent nebula

Technical card

Imaging telescopes or lenses: Boren-Simon PowerNewt 8

Imaging cameras: Atik 460EX

Mounts: Sky-Watcher EQ-6 Pro

Guiding telescopes or lenses: Finderscope

Guiding cameras: QHYCCD QHY5

Focal reducers: ASA 2" x 0,73 Corrector/Reducer 2KORRR

Software: PixInsight  ·  AstroTortilla  ·  Maxim DL

Filters: Astrodon OIII 5nm  ·  Astrodon SII 5nm  ·  Astrodon H-alpha 5nm

Accessory: Lunatico Astronomia Seletek Armadillo


Dates:Sept. 4, 2014

Frames:
Astrodon H-alpha 5nm: 3x300" -10C bin 1x1
Astrodon OIII 5nm: 3x300" -10C bin 1x1
Astrodon SII 5nm: 3x300" -10C bin 1x1

Integration: 0.8 hours

Flats: ~20

Bias: ~500

Avg. Moon age: 9.54 days

Avg. Moon phase: 72.13%


Basic astrometry details

Astrometry.net job: 359171

RA center: 20h 12' 26"

DEC center: +38° 21' 28"

Pixel scale: 3.078 arcsec/pixel

Orientation: 179.854 degrees

Field radius: 0.752 degrees


Resolution: 1374x1099

Locations: Komakallio, Kirkkonummi, Finland

Description

Narrowband channels mapped to natural colors with R = 0,80 * Ha + 0,20 * SII, G = OIII, B = 0,70 * OIII + 0,30 * Ha.

Comments

Sky plot

Sky plot

Histogram

NGC6888 - Crescent nebula, 



    
        

            Samuli Vuorinen