Does anyone know if SynScan (Sky-Watcher or Orion) equatorial mounts (e.g. Sirius/HEQ5 or Sirius Pro/AZ-EQ5) support equatorial GOTO functionality in the daytime? I think that Celestron and iOptron do, just less sure about SynScan. A list of equatorial mounts that support this feature would be helpful.
Specifically, I want to equatorially align the mount to Sol, and then GOTO Mercury (or any other object bright enough to be seen in the telescope in the daytime). Or even better, do a two-object daytime equatorial alignment (e.g. to Sol and Luna, or Sol and another bright star) for better GOTO accuracy.
The major difficulty I figure would be the polar alignment. It would have to be estimated from the latitude and direction of true north. That might be fine for say Solar tracking, but for accurate GOTO of other objects in the daytime could be a problem without a way to reduce the cone error in the daytime.
An inaccurately aligned mount could be disastrous for (e.g.) GOTO Mercury when Mercury is close to Sol. Would have to only slew to targets with the Solar filter on, and check that no Solar light is coming through after a GOTO before removing the filter.
Edited by Nicole Sharp, 25 August 2019 - 02:24 PM.