[tim.anderson (Tim Anderson)]

PHD offers two different polar alignment methods (drift and static) and Sharpcap provides one (static).

I have repeatedly tested each method on the same night and get markedly different results (sometimes several arc-minute differences between the three methods). Before each test, I return the altitude and azimuth settings to a marked position on the mount.

Can anyone comment on which method is most accurate and reliable?

Thanks

Tim