Maurice

I have in mind some planetary spectroscopy (hence the resolution), possibly
Titan If I can coax my old C14 back into life.
As a start, just to see how the device performs, I'll probably do the old
rotational velocity experiment using the D lines on the E-W solar limbs.
Further down the line I may have a look at the Mid IR (my day job involves
working in that region of the spectrum, so a sensor may be available). Have
to look at new gratings though.

I'll post a photo / link once I've sorted out these last bugs with the feed.

Incidentally, did you ever pursue commercializing your own compact hi res
spectroscope - you mentioned the possibility a few years ago when we last
spoke?

All the best

Iain