Lyon centre, France
AP1600GTO mount, SW120ED with a SXVR-M25C for colour with UV/IR block only, and side by side a SW80ED with a Atik 460EX fitted with an Astrodon 3nm Ha filter.
Guided with a SX Lodestar and an OAG in the SW80ED.
Light pollution is a big problem, especially from a large city, but imaging can be done!
Here is a combination of data, 3h16m OSC data for the background and stars, with a Ha layer added – 3h20m.