If by "a camera that always looks at the same place" you mean a camera that point in the same direction as the telescope, yes that would be easier and likely more precise but you will likely require a camera FOV that would make detecting incoming clouds possible, before they get in the FOV of the capture camera It should also be independant from the capture camera so it could monitor cloud movements while a capture is going on. That could be an interesting application for a PoleMaster that would be mounted on the optical axis of the scope.

Anyway, that's all food for thought.

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