Quote:I agree on the accuracy of the NS-GPS. It's ruined me with unmet expectations for every goto since. With a GEM, if polar alignment is off, the gotos will be as well. I never thought of precise polar alignment as an optional activity. That's part of the attraction of alt-az.
Uncle Rod Uncle Rod's Astroblog: http://uncle-rods.blogspot.com/
AT 8" IN Meade 8" LX200-R (ACF) Meade Series 5000 80mm Vixen Sphinx SXW
17.5" f/5 Dob. IM-715 MCT. 120ED. Lunt 60mm Ha. Zeiss, Leica, Fujinon, Nikon, Pentax, Bushnell bins
Quote:You wonder why they don't simply drive the Dec axis to correct for polar misalignment.
LX850 blog: www.LX-850.com
personal website: www.wadsworthobservatory.com
Jim Santel MK91 Astreya-SAPO
Quote:>>>Uncle Rod, all the objects I ask for are in the eyepiece, but they don't STAY THERE.<<<You wonder why they don't simply drive the Dec axis to correct for polar misalignment. They drive both axes when tracking with their alt-az mounts so it's not that tough to do and would be a boon for the equatorially challenged.