NGC 7789 is an open cluster found in the constellation of Cassiopeia. It lies 7600 light years distant and was discovered by Caroline Herschel in 1783.
NGC 7789
Telescope: 16″ f3.75 Dream Scope
Camera: FLI ML16803
Mount: ASA DDM85
Exposure: 2.5 hours (15x300s L + 3x5x300s RGB)
Date: August 2022
Location: Southern Alps, France
Bart Delsaert - Astrophotography 
That’s tops, Bart. Congrats!
Thank you, Val. Much appreciated!
First class image.
Thank you!