Cygnus Wall and Gulf of Mexico Nebula
Posted: Tue Sep 07, 2021 9:30 am
Cygnus Wall and Gulf of Mexico dark nebula LDN 935, both part of the North America Nebula NGC 7000.
My first 2 part mosaic
, 5:40 hours integration time for each part.
Processing was a challenge but still learning more and more. Some stars are somewhat bloated but that's also due to oversampling caused by camera/scope combination. I had enough data to leave the final version in relative high resolution without too much noise.
Full 3000px version on https://i.ibb.co/54FKvBK/Cygnus-Wall.jpg
Bortle 6/7
Meade LX200 8" f/10 ACF OTA
Ioptron CEM25EC mount (no guiding)
Optec Lepus 0.62X Standard reducer (0,73x effective)
Optolong L-eXtreme filter
Zwo ASI071MC Pro camera
Captured with SharpCap Pro @ -10 Celsius / White balance R50 B50
2 x (35 x 600 sec / Gain 90 / Offset 20)
20 x darks, 50x flats en 50x darkflats
Stacked with DeepSkyStacker, saved as TIF.
Photoshop: equal basic stretching on both stacks
Stitched the 2 stacks with Microsoft ICE.
Again Photoshop: Levels, Curves, Camera Raw Filter (blacks, clarity, sharpening, color), Neat Image Noise Reduction, ster reduction and some more steps. Reduced from 5000 to 3000px.
My first 2 part mosaic
![Smile :)](./images/smilies/icon_e_smile.gif)
Processing was a challenge but still learning more and more. Some stars are somewhat bloated but that's also due to oversampling caused by camera/scope combination. I had enough data to leave the final version in relative high resolution without too much noise.
Full 3000px version on https://i.ibb.co/54FKvBK/Cygnus-Wall.jpg
Bortle 6/7
Meade LX200 8" f/10 ACF OTA
Ioptron CEM25EC mount (no guiding)
Optec Lepus 0.62X Standard reducer (0,73x effective)
Optolong L-eXtreme filter
Zwo ASI071MC Pro camera
Captured with SharpCap Pro @ -10 Celsius / White balance R50 B50
2 x (35 x 600 sec / Gain 90 / Offset 20)
20 x darks, 50x flats en 50x darkflats
Stacked with DeepSkyStacker, saved as TIF.
Photoshop: equal basic stretching on both stacks
Stitched the 2 stacks with Microsoft ICE.
Again Photoshop: Levels, Curves, Camera Raw Filter (blacks, clarity, sharpening, color), Neat Image Noise Reduction, ster reduction and some more steps. Reduced from 5000 to 3000px.