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Old 19-06-2011, 10:11 AM
mikerr (Michael)
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Setting accurate South/North line for Pier/Tripod

Looking at Als Astroclock clock this morning shows that today the Solar Noon will be about 45 seconds before local noon here.

I intend to try and use the string and plumbob method of marking a North/South line on my water tank where the new pier is going.

It will be interesting to see how different that turns out compared to the magnetic compass method I have been using to position the tripod.

I also figured that as the Solar and Local noons were so close together today it must have some significance. Looked up Winter Solstice and Hey
it turns out to be around 20th of June. Tomorrow!!!

Michael.
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Old 19-06-2011, 03:41 PM
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AdrianF (Adrian)
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Have a look at this.
http://www.youtube.com/watch?v=JUYz3yu-3Sc

Adrian
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Old 20-06-2011, 12:21 PM
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GraemeT (Graeme)
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Thanks for the heads up, Mike. I went out at noon and checked my carefully calculated N/S marks and they were out by a goodly number of degrees.
(Not saying how many - too embarrassed)
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