|
So the next major discover for me today on the Cyanogen forums. All the bearings they wish you to take:
1) Home position
2) Park position
3) Dome rotation centre versus Mount RA / DEC pivot point offset North / South
4) Dome rotation centre versus Mount RA / DEC pivot point offset East / West
...all of these factor refer to Celestial coordinates - not magnetic or geographic, and of course all are relative to the dome's rotation point not the mount!
For Sydney Celestial South is 11 degree East of magnet South, so this changes my bearing measures by 11 degrees and my off set measurements by an inch or two!
Amazing when there is a choice of measurement systems how Diffraction Limited didn't document which to use, nor include and pictures or schematics to help understand all their terms and assumptions!
Once the weather changes I will see how this affects all my all sky pointing. Stay tuned!
|