M17 the Omega Nebula, also known as the Swan Nebula, Checkmark Nebula, Lobster Nebula, and the Horseshoe Nebula (catalogued as Messier 17 or M17 or NGC 6618) is an H II region in the constellation Sagittarius.

M17 Omega Nebula (46 x 5 min) cropped
Click on the image to open it at full resolution.
M17 the Omega Nebula, also known as the Swan Nebula, Checkmark Nebula, Lobster Nebula, and the Horseshoe Nebula (catalogued as Messier 17 or M17 or NGC 6618) is an H II region in the constellation Sagittarius. It was discovered by Philippe Loys de Chéseaux in 1745. Charles Messier catalogued it in 1764. It is by some of the richest starfields of the Milky Way, figuring in the northern two-thirds of Sagittarius. – Wikipedia.

Total image time was 3.8 hours.

Exposure46x5 min.
ISO3200
CameraNikon Z7 [8856 x 5504]
Optics120mm Skywatcher Esprit on a Celestron CGX mount
GuidingZWO ASI224MC using Phd2
ControllerKstars on MeLe Quieter 3C
FilterTriad Quad Ultra
LocationLower Sackville, Nova Scotia.
Date2023-07-28 and 2023-08-01
PixInsight Processing
Dynamic Background Extractor
BlurXTerminator
NoiseXTerminator
Generalize Hyperbolic Stretch
CurvesTransformation
CloneStamp
Dynamic Crop