astroenthusiast 279 Posted April 13, 2021 The starless image of Messier 104 was captured using 46 sub-frames at 60 second exposure each. The camera gain was set at 230, with a temperature of -25C. The amateur equipment used: Explore Scientific ED165 mm APO refractor at F/7. The camera used: ASI2600 CMOS OSC & Baader – Moon & Sky-glow filter. Polar alignment and tracking were achieved using plate solving. Astrophotography software used: Astro Pixel Processor & Adobe photoshop used for image processing and removal of background stars. Link to comment
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