David,
I've been grappling with the same problem of late. My SCT is in altz set-up and the planet needs regular nudging to keep it on the chip. If you rotate the camera you need oblique adjustments, the altitude motor runs less freely than the altaz and it's especially complicated when you're viewing near the zenith for an altaz mount. I've been giving uip and rotating in Photoshop.
BTW, great photo with fantastic belt detail.
Graeme
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