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This was a focused capture using 5-minute exposures over two nights with the Optolong L-eXtreme filter. The Crab Nebula was mistaken for a comet by astronomer Charles Messier in the late 1600s. Frustrated, he started a catalog of 'things to avoid' and the Crab was awarded Messier 1 or M1 for short. I wonder what his reaction would have been had he used an EdgeHD instead?
⭐ This photograph is part of our signature series.

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Telescope:   Celestron EdgeHD 9.25
Length:   1645mm
Aperture:   235mm
F-stop:   f/7.0
Sessions:   2
Captured:   2022-12-14 to 2022-12-15
Lights:   66
Exposure:   300
Total exposure:   5 h
Ra:   5h 34m 32.5s
Dec:   +22° 01' 29.803
Size:   22.789 x 15.19 arcmin
Radius:   0.228 deg
Scale:   0.454 arcsec/pixel