On Thu, Jul 2, 2020 at 02:32 PM, Brian Valente wrote:
Yes that's a good point, mirror flop can create issues, so you have to be careful with that. I record PE data around the meridian/celestial equator intersection and have pier side west, hopefully that minimizes any shift as well, but i have refractors so I can't directly comment on how effective that is for SCTs
PemPro is pretty good at removing a consistent drift that may be caused a slow shifting of the mirror, although getting close to the meridian can mess with the "slow and consistent" part :)
Regards,
? ? ?-Paul
Paul Kanevsky