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Align to 3 stars on one side (only) of the meridian? (go West of meridian and align to 3 stars).

Then, after those 3 on one side, align to 3 stars on the other side (say East of meridian).

Give that method a try and see if your pointing gets better.

Also be aware of the difference between the words "Align" and "Synch."? A "Synch" only adjusts the offsets of RA and DEC, but does not change the Model parameter values.? "Align" does not change the RA or DEC offsets, but instead adds new calculated Model parameter values.

On a cold boot, all Model parameters are 0.? After your first star Align/Synch, the values are still 0...only the offsets are adjusted.? Each "Align" after that Gemini actually does calculations of the Model.? You can watch the model values change after each step, if you use the Gemini.net applet for example.

I don't have the software source code, but the data fitting algorithm method must be why the 1st 3 "Align" stars must be on the same side of the Meridian....so the calculations come out right.

Other mounts do not have this requirement, or use triangulation rather than a sophisticated sky model.??

Anyway...see what your tests show.

Best,

Michael?