NGC 891 (also known as the Silver Sliver Galaxy) is an edge-on unbarred spiral galaxy about 30 million light-years away in the constellation Andromeda. The galaxy is similar in size and shape to our own Milky Way galaxy seen edge on.

This stack of 53 five-minute exposures were taken from December 26th-29th, 2024 using my QHY247C on my Celestron Edge HD C11 with the 0.7x focal reducer. This was the first of a series of images with my new 3D printed auto-focuser on my old Zhumell Crayford SCT focuser, allowing me to clamp down the primary mirror and avoid mirror flop. The image was processed in PixInsight.

Image Center:	View full size annotated image.
Right Ascension:	2h 22m 32.876s (35° 38m 13.145s)
Declination:	+42° 20m 46.839s
Orientation:	Up is 91.3 degrees East of North.
Image Size:	40.826' x 27.231'	Pixel Scale:	0.414"

Principal objects in field: NGC 891

All identified catalog objects: NGC 891