Heck... I have an observatory ! And i have one of them.
And i use it too.... Periodically check and recheck, and adjust periodically.
Me too. But I have no pier, just a portable pier set on concrete blocks. The recheck takes about a minute, no rotation required. That may also be true with a portable setup, I think the rotation simply calibrates a specific PoleMaster setup to your mount. The iOptron version requires rotation on the first use, and I'd guess on change of mount.
I've long said we ought to make this more concise. People _with_ a PoleMaster think everyone should own one, that the Hubble could use one. <smile> People without a PoleMaster post about "better" methods. The first people could just say "PoleMaster post A".
I concede that SharpCap PRO works about as well (perhaps not as easily), at low cost. The basic concept is the same. Use platesolving to locate the North Celestial Pole, and the center of rotation of your mount. Superimpose.
Probably PhD2, also.
Edited by bobzeq25, 24 August 2019 - 09:54 AM.