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Wilco
The polar aligned “Home Position” is important for most telescope control software ( eg EQMOD and Stellarium) as it provides a frame of reference or pointing model to your first alignment Star or alignment point once centred.After that first alignment point the software ( mount) knows exactly where it started from so when you finish your session the mount will return back to it’s starting point or “home position” ready for another session.The alignment data is usually saved in the mount until you switch power off.The more expensive mounts save the alignment data even when the power is switched off.
In the case of EQMOD and Stellarium, the more alignment points or alignment stars that are centred and saved ( Syncronised or Sync’d ) around the night sky , the more you create a sophisticated pointing model and the more accurate your Goto’s become. On most imaging nights I usually only need to Sync 3 to 5 alignment points to easily and accurately find objects.
Cheers
Martin
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