Re: [APML] Polar Drift Alignment Article

["Philippe Chretien" <pchretien@videotron.ca>]

Hi Jim,

Good resume.

I like the section where you say that "If the star drift in less than 5 sec.
at 200X the azimuth is probably about 10 eyepiece off". This is good to have
an idea of the amplitude of the error before trying correct it.

It is possible to describe the drift method without any allusion to the type
of scope used or if a diagonal is used or not by adding a section describing
how to determine the north and the south in the eyepiece. I suggest you read
the article Jerry Lodriguss wrote on the drift method. I always uses the
"SEL" shortcut to remember the method!

My 3.14159 cents ...

Phil

----- Original Message ----- 
From: "Jim Janusz" <jjanusz@dc.rr.com>
To: <astro-photo@seds.org>
Sent: Tuesday, October 28, 2003 1:55 PM
Subject: [APML] Polar Drift Alignment Article


> Using concepts in Chuck Vaughn's Polar alignment article and some ideas
> developed by David Churchill and myself, I did a presentation to my clubs
> Astro Imaging Special Interest Group.  The paper from this presentation is
> on my web page at:
>
> http://home.dc.rr.com/jimjanusz/Polar%20Alignment.htm
>
> Comments and constructive criticism welcome.
>
> Jim Janusz
>
> Astronomy  Web Page at:
> http://www.astroimager.net/
>
>
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> Astro-Photo mailing list
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