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Re: [ATM] Field derotator

At 2005-03-29 09:18 -0500, Jonathan Lavoie wrote:

>I searched on making a field derotator but found not much information.
>Can you point me to webpages on the subject if there is? This is for my 
>16" RC under construction with Mel's stepper drive.

Meade used to sell a field derotator for LX200s being used with altaz 
mounts (maybe they still do).  The feeling I got from comments on the Meade 
user group email list was that they didn't work very well, and it was much 
better to go with an equatorial mount.  I'd say it would be best to go with 
a wedge, considering all the work involved in a big RC.

Hey, ATMs!  Meade is diving into the RC sea along with Hubble, Keck, etc. - 
big article in the May S&T.

         -- Jim Burrows
         -- mailto://burrjaw@earthlink.net
         -- http://home.earthlink.net/~burrjaw
         -- Seattle N47.4723 W122.3662 (WGS84) 

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