Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  NGC 6888
Croissant pur beurre, 



    
        

            Laurent Fournet
Croissant pur beurre
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Croissant pur beurre

Equipment

Imaging Telescopes Or Lenses
Custom 20" Newton f/4.95
Imaging Cameras
SBIG STL-11000
Mounts
Custom Fork
Filters
Ha
Accessories
ASA Wynne 3" x0.95
Software
photoshop · Maxim DL · CCD Inspector · CCDSoft
Guiding Telescopes Or Lenses
Custom 20" Newton f/4.95
Guiding Cameras
SBIG STL-11000

Acquisition details

Dates:
Sept. 21, 2011
Frames:
Ha: 29x300" (2h 25') -10°C bin 1x1
Integration:
2h 25'
Darks:
10
Bias:
10
Avg. Moon age:
23.05 days
Avg. Moon phase:
40.43%
Bortle Dark-Sky Scale:
3.00
Mean FWHM:
3.00

Basic astrometry details

Astrometry.net job: 146196

RA center: 20h12m20s.4

DEC center: +38°2009

Pixel scale: 0.775 arcsec/pixel

Orientation: -175.332 degrees

Field radius: 0.367 degrees

Resolution: 620x521

Comments

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Sky plot

Histogram

Croissant pur beurre, 



    
        

            Laurent Fournet