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  1. The Crab Nebula (also known as M1, NGC 1952 or Taurus A). This is quite an improvement on the last attempt at imaging M1 about two years ago. This time it was possible to bring out some of the filaments that make this object so interesting - this despite using a much shorter focal length making the object appear significantly smaller. The image is cropped rather radically to show more details in the nebula so the stars appear bigger than I would prefer, but on the original they look fine. 040 x 300 second exposures at Unity Gain (139) cooled to -20°C 050 x dark frames 040 x flat frames 100 x bias frames Binning 1x1 Total integration time = 3 hours and 20 minutes Captured with APT Guided with PHD2 Processed in Nebulosity, Fitsworks, and Photoshop Equipment Telescope: Sky-Watcher Explorer-150PDS Mount: Skywatcher EQ5 Guide Scope: Orion 50mm Mini Guiding Camera: ZWO ASI120MC Imaging Camera: ZWO ASI1600MC Pro Baader Mark-III MPCC Coma Corrector Light pollution filter
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