Interesting approach Adam This is the same method that I use when imaging ISS in daylight and I have had succes simply by looking at Calsky.com just prior to the transit and taking the Az El values then setting the telescope up to these (In these instances of course I have no star to guide me as I'm shooting in bright sunshine) Ignoring weather aborts , which are usually the reason for a "miss" I get a one in two success rate using this method. Admittedly its like finding a needle in a haystack , but its a simple procedure which gives reasonable results. Main thing is to ensure that if you are contemplating this , the scope has to be levelled perfectly , no margin for error , then just set up to the Az value.If you go for the top of the the pass , because of the apparent "flattening" of the transit Az is not quite as critical.One degree accuracy is good enough Here's an example... http://i42.tinypic.com/29qgkdh.jpg .....from a very bright June day a couple of years ago , using this point and shoot technique.... ! Good luck , whichever way you attempt it :O) John ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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