
25-01-2013, 05:41 PM
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ATMer and Saganist
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Join Date: Jun 2008
Location: Adelaide S.A.
Posts: 2,292
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Quote:
Originally Posted by LewisM
My set up is a triple checked solar noon line, and tripod leg markers (I don't fold the tripod, so they are always at the same distance, same levelling setting etc).
I use the tripod in reverse so to speak - I have the traditional polar leg at the REAR (never repositioned the az peg), and then I have an aluminium tube in the polar alignment scope opening, from which hangs a plumb bob on a string. I then line up the leg and the bob on the solar noon line. I also check it with a compass - the compass is permanently affixed to a 2 metre long aluminium flat strip, bent at the rear to exactly my mag var'n, and fitted with a dovetail so that it fits the mount. I can then recheck to see if it is close (I got the alum bar idea from a post here some years ago - I think it was Lars?)
Been rewarded with near spot on alt, and max 2 min off in az. Maybe good, but I really would like it better, as yes, I DO want to go deeper yet.
Nothing wrong IMHO with wanting accuracy. Near enough is not always good enough for everyone
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<facepalm>
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