The ZWO Seestar has a pretty small sensor, so despite the short focal length of 250mm the field of view is very narrow. With mosaic mode you can automatically stitch together multiple frames to get a much wider field of view. I ran out of time because of clouds, but it seems to work pretty well as seen in this image of Messier 31 (the Andromeda Galaxy). This was shot from the city (SQM 17.32). It will be interesting to see how well it works with a couple hours of complete data from a dark sky location, but clear nights are few and far between this time of year. Time is running out for 3I/ATLAS…
