Comet 2022 E3 ZTF 21st January 2023
My first comet image, taken from my Bortle 5 back yard. I used my SW150 PDS guided with PHD2. My Canon 600D was connected via the MPCC corrector. All controlled from APT.
40x 120s lights at ISO 400 (no filters)
Calibrated and aligned in Pixinsight using comet alignment tool, then removed all stars with a trial of Star Xterminator before stacking. I then stacked 10 of my lights with star alignment, then I created a stars image. I chose only 10 frames as the comet had moved a considerable distance over the 80 minutes and I didn't want any comet artifacts in my stars image.
Both images were stretched and aligned, before being cropped to the same resolution. Then I combined both the comet and stars with pixel math.
I'm happy with it for my first comet, however I wished I watched what direction the comet was traveling. I framed my image based on the dust tail thinking it would move down my frame, but it actually moved up. Lesson learned.
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