Is there such a thing as an eyepiece with a pointer in it?
An eyepiece with a moveable/rotatable pointing arrow.
If any here have used a microscope very much - you know what I mean. A small black pointer/arrow - that you can turn around the circumference of the FOV.
As more and more folks are finding out about my observatory - I am having more and more groups over for outreach and educational programs. That's a good thing... I enjoy it... but I have noticed often when I want to point out a particular crater, rille, mountain or some moon feature - or even the belts of Saturn or Jupiter - it is sometimes difficult to direct people to exactly where to look.
I wondered if anything like this has ever been produced? Would it even be possible given varying focal lengths and styles/dimensions of eyepieces?
Seems like it would be a useful tool - if it exists - or could be done. Seems like it would be hard to put something at the top of the EP - but perhaps some kind of a movable pointer that might screw into the bottom of the eyepiece where you would normally attach filters.