Astronomy Site: Meade Advanced Products Users Group Archive: Re: [M]: 1 hour off


 

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Subject: Re: [M]: 1 hour off
From: Bill Arnett
Reply To: mapug@shore.net
Date: Mon Apr 19 16:07:32 1999

While you're here, how about checking out the Astronomy Book List ?

>I had an interesting experience the other night. I did my normal 2 star
>alt/az alignment. I looked a few DSO's and all seemed ok. The I tried
>Mars and I couldn't keep it in the FOV 9mm EP. It left the FOV like
>gangbusters. I checked my time and noticed that it was 1 hour off due to
>the change to DST. Apparently, tracking planets is highly dependent on
>the correct time in the LX200 chip. Is this correct?

No. The LX200 does not track planets. It *finds* them and then
simply tracks at sidereal rate (unless you mess with the frequency to
track at some other rate). This is entirely sufficient; even the
fastest planets don't move fast enough to matter in this respect.

The clock is used to find planets but being off by an hour is
insignificant. Something else was going on.

Bill Arnett
http://www.seds.org/billa/
"I know that I am mortal and the creature of a day; but when I search
out the massed wheeling circles of the stars, my feet no longer touch
the earth, but, side by side with Zeus himself, I take my fill of
ambrosia, the food of the gods." -- Claudius Ptolemaeus (Ptolemy)

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