Thanks all
My 1986 vintage "Sampson" mount and drive corrector was built well before autoguiding came along, and it doesnt have a DEC drive. The only "modern" part of the guiiding is that I use a Q guider camera to keep a star centred on a virtual reticle on the laptop, so I can stay seated rather then stand at the eyepiece.
Heres a reprocessed version to brihg out more inner detail.
Scott
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