From: Milton Aupperle <milton@outcastsoft.com>
Date: September 22, 2007 11:20:12 PM MDT
To: Astro_IIDC@yahoogroups.com
Subject: Re: [Astro_IIDC] Re: CPC scopes
Hi John;
To do a half arse job would require an Aligned (i.e mount that has been calibrated with the hand controller on at least 2 stars) GoTo type mounts using a USB Serial adapter so we can read out the precise positional positional of the scope and then making short adjustments to "nudge" it in the direction we hope makes the correction. And we need to move both motors at the same time to correct for one axis of correction too. I doubt if you'd get more than a few arc seconds of accuracy.
So it simply won't work with the precision level that you need to make sub pixel / sub arc second guiding worth while for DSO's and multi minute exposures. For that you need an EQ mount or an EQ wedge.
HTH..
Milton J. Aupperle
President
ASC - Aupperle Services and Contracting
Mac Software (Drivers, Components and Application) Specialist
#1005 - 815 14th Avenue. S.W.
Calgary Alberta T2R0N5
1-(403)-229-9456
www.outcastsoft.com
Proud Supporter of the "Party of Alberta"
http://www.partyofalberta.org/
On 22-Sep-07, at 10:54 PM, John McDonnell wrote:
Was it your decision to not support guiding using alt azimuth mounts
or would supporting alt azimuth mounts been to difficult to put into
AstroIIDC. I was hoping to use AstroIIDC with an imaging source
camera with my alt azimuth mounted Meade LX200R.
John McDonnell