Angular scale for the AO-system

This is a simple solution to easy up guidestar selection with SXV-AO active optics sytem.

When OAG (Off Axis Guider) is used, the selection of the guidestar is very important.

Now it's relatively easy to put whole imaging system to an angle readed from

star chart.

The scale is printed to a sticker material and can be seen in upper image.