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Contains:  NGC 6995, Network nebula, NGC 6992, IC 1340, Veil nebula, Lace-work nebula, Filamentary nebula, NGC 6960, The star 52Cyg
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Cygnus Loop in Bicolor, 


Cygnus Loop in Bicolor

Cygnus Loop in Bicolor

Technical card

Resolution: 2390x2022

Dates:Sept. 25, 2016

Frames: 85x600"

Integration: 14.2 hours

Avg. Moon age: 24.27 days

Avg. Moon phase: 28.16% job: 1292753

RA center: 312.901 degrees

DEC center: 30.691 degrees

Pixel scale: 6.960 arcsec/pixel

Orientation: 92.880 degrees

Field radius: 3.026 degrees

Locations: My Backyard, Langen, Hessen, Germany


The complete Cygnus Loop or Veil Complex in a bicolor narrowband rendering. Recently, I posted a version of the same object taken during my summer vacation in the Mediterranean. I liked it, but was not perfectly happy with the raw data and the processing.

So, back home I decided to do it again from scratch, from my light-polluted backyard (red zone). Using the same ancient Takumar 135mm f/2.5 lens, but this time stopped down to f/4 to improve sharpness and image quality. At the same time, I went for longer exposures and more subs, the above image uses 50 Ha and 35 OIII subs with 600 sec each. During processing I used drizzle integration which worked really well for the undersampled input data. I like this second try.

Make sure to look at the full-size view!



License: None (All rights reserved)

Sky plot

Sky plot


Cygnus Loop in Bicolor,