SUNSET: 
0
Photographer:
Kenneth Brassard
Location of Photo:
Lynn, MA USA
Date/Time of photo:
10/19/2023 @ 9:00pm
Equipment:
Orion Xt10g goto Dobsonian Alt/Azimuth ZWO 294 MC ZWO EAF focuser L-extreme narrowband filter. Nexus 0.75x Focal Reducer and Coma Corrector
Description:
I had an unpredicted semi-clear night and decided to do a session on IC 5070, The Pelican Nebula. I knew it was going to be very high, but I didn’t realize how high. It turned out to top off at 89.5 °! I’ve never tried a session at such a great height and might have passed on it if I had done more research on its progress for the night. As it turns out, when it passed 88.5° the plate-solving could not fully correct for the height and took almost 30 minutes to re-acquire the nebula, when it began dropping down in the sky. When it finally plate-solved I saw that the scope had done the Dobsonian version of a meridian flip, and now the raw images were upside down from the earlier images. I knew the processing programs could easily correct this in post, but it is the first time I ever had this happen. Learn something new every day! Here’s the result, including a starless version. Due to the extreme field rotation my stars did not come out round, as I like them to, but the nebula colors are beautiful
