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Subject: problems with autoguiding the LX200
From: Luc Vanhoeck
Reply To: mapug@shore.net
Date: Thu Jun 15 01:16:18 1995
Hi,
At the moment I'm trying to get the ST-8 working with my 8" LX200. I'm
experiencing severe problems. The drive seems to be guiding unreliably. Even
with exposure times of only 2 seconds, I had guiding errors that resulted
eventually in the ST-8 giving up. This seems to be dependant of the scope's
position.
What I've done so far is removing the guide scope and adding some
counterweights so that the telescope is in balance. But this didn't help
very much.
Is there something else I can do ?
In addition the declination backlash is making things even more difficult. I
tried to get the work tighter to the wormwheel but when turning this over 90
degrees, everything was blocked. So I had to loosen the bolt again.
I must say I'm a little bit desperate. I'v been using the ST-6 for two years
and was quite succesful with it. Now I have an ST-8 and I expected a lot of
it. The camera itself already gave me good indications that it is able to
deliver as advertised but is less sensitive than the ST-6 and requires
longer exposure times. This would not be a problem if the LX200 would help
me a bit....
Luc Vanhoeck
Regulus observatory
Breendonk, Belgium