Hi Derek

Tony Rodda

Yes, a Star Analyser seems to be the first step everyone takes.  It mounts as an eyepiece filter would. 

I don’t have one but….

I have a new 1″ Thorlabs 4* wedge prism (and mounting ring) that can be placed in front of the Star Analyser to improve resolution.  The Star Analyser variant usually retails at £46 plus £8+ for the mount.  I’ll probably ask half.  I’m not sure that you need this until you have some experience with the ‘simple’ Star Analyser first. 

I haven’t used this configuration but I’m sure other more experienced members can advise.  Email/PM if you need to chat.

Regards   T