From: Mark Gaffney <markgaffney@mac.com>

Date: July 27, 2008 7:17:08 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Iterative Polar Alignment

Hi Perry, I think a 3 star alignment helps the scope/mount find it`s bearings. IPA in Astroplanner slews to the alignment star first & when synced will tell you your error in alignment. Then the pole star (if you`re lucky enough to be on cue!) is slewed to and corrections made with the mount`s adjustments & the same process is repeated to eliminate error. Mark.

On 28/07/2008, at 10:59 AM, hpholcomb wrote:

Can't iterative polar alignment with a GOTO mount be done with Polaris

and another star that is sufficiently separated from P using just the

mount's GOTO program (like Vixen's Starbook-S on my GPD2, for example)??

Perry

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