This is a mosaic of the following four images. It is not perfect but it is very difficult to achieve a better match of all four images.

The region around Sadr or Gamma Cygni is full of emission nebula, dark nebula, star clusters, planetary nebula and all other sort of interesting objects. It is one of the most fascinating regions in our galaxy visible from the northern hemisphere.

Acquisition Details

Lens: Sigma 135/F1.8 DG HSM ART
Lens Speed: F3.5
Filter: Haida Nano Pro UV-IR-CUT
Camera: Canon EOS Ra
Mount: Skywatcher Star Adventurer Pro
No Guiding
Light Frames: each frame about 215x60sec
Flats, Bias, Darks
Manual dithering every 20 exposures only in RA
Camera settings: ISO 1600
Bortle 4-5
Acquisition Dates: May 30, 2021. May 31, 2021, June 1, 2021

Processing

Stacking Software: DSS
Imaging: PixInsight