Orthographic projection for astronomy

by Simon at 14:07 19/02/06 (Blogs::Simon)

Here's a very clear explanation, with diagrams, of how to construct and measure the azimuth of the major sun and moon events of interest at any particular latitude.

Handily, he's worked it out using lat 51° N which saves us all a bit of work :-)

http://www.geomancy.org/astronomy/orthographic-projections/index.php

Time to get the compasses out.

re: visit plans

Cheers
S.

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