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I reprocessed old data with a new technique for this. M17 goes by several different names: Checkmark, Horseshoe, Lobster, Omega and Swan. It is a massive star-forming region that is bright and richly structured. It has a complex structure that is unique due to the almost straight-edged regions of darks and transitions from billowing clouds of molecular gas to long, twisting tendrils.
⭐ This photograph is part of our signature series.
Telescope:   Celestron EdgeHD 9.25
Length:   1465mm
Aperture:   235mm
F-stop:   f/6.55
Sessions:   1
Captured:   2022-07-08
Lights:   28
Exposure:   120
Total exposure:   56 m
Ra:   18h 21m 10.9s
Dec:   -16° 10' 26.698
Size:   37.939 x 26.083 arcmin
Radius:   0.384 deg
Scale:   0.569 arcsec/pixel