Intercepting consistent RA-axis drift during 300s exposures. I have checked the tripod leveling and polar alignment (locked at 0.4″ accuracy). Could this be a backlash issue in the worm gear?
Fellow observers, I recently acquired a new laser collimator for my Newtonian. However, when I rotate the laser inside the focuser, the red dot on the primary mirror moves in a tight circle. Does this mean the collimator itself is uncollimated? Is there a way to recalibrate the tool, or is this a hardware return […]