From: Mark Gaffney <markgaffney@mac.com>

Date: May 31, 2008 8:21:35 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] "Start Track Objects...."

Hi Milton, I get you I think. I only have to enter the Dec for the object of interest not for what the OAG`s second camera is centred upon. Is that right? Mark.

On 01/06/2008, at 12:11 PM, Milton Aupperle wrote:

Hi Mark;

On 31-May-08, at 7:27 PM, Mark Gaffney wrote:

Say I`m photographing NGC 2516 for instance which according to

Equinox 6 has a Declination of; -60 degrees, 52 minutes & 1.2

seconds won`t the Easy guider`s second camera be positioned

diametrically opposite this (180 degrees distant)?

Nope, the Guider orientation doesn't make any difference. Astro IIDC

wants the absolute declination of the object, so enter -60 or -61

degrees. You don't have to be precise and a few degrees won't make a

large difference either.

Secondly the idea behind entering the Dec is that you can do the

calibration on some easily found brighter star, then you can move to

the actual target, enter it's declination (so Astro IIDC can

compensate for the changed in declination) and just start guiding on

it. This works best with a secondary scope for guiding, because you

won't be rotating the camera or changing orientation like you would

with an Off Axis Guider when your hunting for guide stars.

HTH..

Milton Aupperle

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