The bright star in the center of this image (Gamma Cygni) is surrounded by large nebula cataloged as IC1318.
The star Gamma Cygni is however not part of the nebula itself, but happens to be a foreground star located at a distance of 750 light years, while the nebula itself is located at about 5.000 light years.

Gamma Cygni is the center star in the Northern Cross (Cygnus).
The right part of the nebula is also knwon as the “The Butterfly Nebula” due to it’s shape.

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Image data

Object info
Name IC1318 – The Gamma Cygni Nebula
Type Emission nebula
Constellation Cygnus
Right ascension 20h 26m 35s
Declination +40° 17′ 47″
Distance 5.000 ly
Other designations Sadr Region
Image info
Image date Sep. 03, 2010
Light frames 6x 6 min. IDAS LPS-P2 unbinned
Total integration 36m
Dark frames 4x
Flat frames 5x p. filter unbinned. Created with an A3 size Posterpoweruk flatfield panel
Bias frames 5x
Software used CCDOps, CCDSoft, ImagesPlus, PixInsight LE, Photoshop CS2
Processing CCDOPS was used for focussing. Image Acquisition was done using CCDSoft.
All separate frames were calibrated, aligned and stacked in ImagesPlus 2.8.
Photoshop CS2 was used for further processing – curves adjustment, levels adjustment, etc.
Noel Carboni’s toolset was used as well (Local Contrast Enhancement, Deep Space Noise Reduction)
Equipment info
Telescope TMB/LOMO 80/480
Corrector Televue 2″ TRF 2008 flattener/reducer (FL: 384mm f/4.8)
Mount Losmandy G-11
Camera SBIG ST-8300M
Guide camera Atik 1HS Mono
Guide scope Vixen VMC110L
Autoguide software Guidemaster
Filters 2″ IDAS LPS-P2
Location Landgraaf, The Netherlands
Image comments

Image quality suffers severely from lack of sub-frames