[johngwheeler (John)]

I've just bought a Celestron AVX mount, and and tried it the first time yesterday with a 6" Mak, and I've had some odd behaviour with the go-to & alignment features.

I started off with a 2-star alignment, choosing two visible stars (not far from the meridian) and then a calibration star in the West.

The Go-to features seemed to work well, except when I tried to go to the Moon. The mount missed it by about 30 degrees! I did a go-to to Saturn, and it was spot on. Any idea why this would be? My location and local time information seems to be correctly entered.

I also tried a polar alignment using my calibration star (Spica). The mount slews away from the target after centering it, but then go back to a point about 90 degrees away. I was expecting it to return to a point close to the star, and then asking me to adjust the mount to centre the star in the finder and eyepiece.

Is there some problem with my choice of alignment stars that has confused the alignment process?

I'll try again tonight with different stars, but I'd be interested in understanding what has happened!

Thanks for any advice you can give.

John.