From: Milton Aupperle <milton@outcastsoft.com>

Date: March 21, 2009 3:24:14 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Re: Dione Transit of Saturn movie

Hi Jim;

You can do that too, at the same time.

You can start a Guiding session and then execute the Apple Script to do the movie captures, with one camera (page 82 of the manual, right after the script example).

I would set the Guide accuracy to 10.00 so that it only makes coarse corrections now and then, rather than all the time. This will keep it +/- 10 pixels form center which should be fine for keeping it all centered.

Note that this won't work for long exposures, as it can only make corrections after it receives frames and analyses them.

HTH..

Milton Aupperle

On 21-Mar-09, at 3:00 PM, Jim Chung wrote:

Thanks Alan & Milton,

I'll keep the Applescript in mind for next time but in order for it to

work I'll have to autoguide at the same time to keep the planet from

drifiting off the chip or into a giant dust mote!

Jim