Ettore-

It may be all in my head but I am sure it makes a big difference with the
JMI MAX DSC unit on my dob. I seem to do better by moving quickly with my
LX-200 too but that may be purely coincidental. Would the LX computer have
to make DEC corrections as well as RA if it is in alti-az and you are slow
getting the second star? Anyway, my 5 year-old LX-200 seems to work pretty
well never having had any repairs or "mods"so I have a routine I try not to
vary, including quickly centering the second star :-).

Andy

----- Original Message -----
Sent: Tuesday, May 22, 2001 9:57 AM
Subject: [M]: Re: Re: Re: Pointing accuracy, permanent piers, and leveling


>
> Andy, you write:
> > I've also found that if you plan ahead and get your second star aligned
as
> quickly as possible after the first, your alignment will be better. The
> earth is turning while you fiddle around with the second star :-) With
my
> > JMI MAX unit on my dob, this speed seems even more important.
>
> I have often wondered about this issue: while one fiddles around finding
the
> second star, what happens to the system because of the RA motion? I have
> observed that if you let the instrument sit for a while, the RA angle
> changes slightly which leads me to believe that the monitoring of the
> sidereal time is active and clicking in between stars alignment. I would
> like to hear what the "list" has on this: confirm it or not <G>. Regards,
> Ettore
>
>

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