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Old 13-01-2010, 09:15 PM
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[1ponders] (Paul)
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Join Date: Nov 2004
Location: Obi Obi, Qld
Posts: 18,778
Alignment issue with AN and Gem mount. Need some direction

I'm trying to solve an alignment issue with my argo navis and my G11 and I'm not getting anywhere. Options and advice sought.

When I do my initial alignment from the east side of the mount I can generally get close to objects that I'm looking for. Some nights though the accuracy can be quite a few arcmin out. I've tried using the Align option to reduce the error but that makes things much worse.

Typically for example say I align star on the east side of the mount and I select Alderbaran. Warp = +0.00. I then select a bright star, Rigel. I move to Rige (with meridian flip tonight), and center it in the eyepiece. I then select Mode Align and select Enter when Rigel comes up on the screen. It gives me a warp of +0.00. I then select Canopus from the Catalog and when I get there the RA reading is right but the Dec reading is 88. AN is reading Canopus nearly 90 deg out. I've checked the encoder signs and it all looks ok.

Any suggestions as to what is going on??
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