A workaround: It seems using "Sync" on the Align tab works well with Celestron Starsense. I was able to use "Sync" on a field and then slew using KStars. For most targets that I tried, this procedure got the pointing to within a few arcseconds, which is extraordinary for a Celestron CGEM mount. One target, NGC 40, failed, and the resulting slew ran the camera into the pier. I suspect the Starsense pointing model may have been poor at high declination; another Starsense field nearer the pole might have helped.

It's a mystery to me why Sync + Kstars slew works but Slew to Target is problematic. Nevertheless, the workaround should be fine for my needs!

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