Black and white image of this open cluster on the Messier list. Nearly full moon - fine weather for catching up on my open clusters.
Stack in registax 3, curves in photoshop. Light minimum filter faded in. Strong moonlight gradient reduced by selectively selecting the background and moving the blackpoint slightly.
Exposure Details :
IR Block 130x4.3s on 200mm @ F5 with SC3.5
Curdridge Observatory, Southampton,UK