Thanks Chris
Ok, so here's a first one. When you say give it a stretch, what exactly does that mean ? What am I actually doing to the image ? I'm assuming that means increasing the length of the data area in the histogram ? And how do I go about this in PS ? Most of the processing I've done is trial and a lot of error.
In answer to your question about guiding, it's actually something I'm working out if I can do with my mount. At the moment I'm on the 4SE Alt-Az mount on a wedge. I'm well aware this is a terrible mount to be playing this game on but it's what I've got and so im making the most of it

I do like a challenge