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in principle these maps could be updated each year without much trouble

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Wow, wouldn't that be cool? They're seriously out of date by now in some fast-growing regions. And I'm pretty sure there are flaws in Cinzano's model and methodology that could be fixed, too.

I've thought of taking that job on myself; all the underlying data is in the public domain. But the task is really pretty overwhelming.

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Tony Flanders

eyeglasses
6x15 and 8x32 monoculars
8x25, 7x35, 10x30 IS, 10x50, and 15x70 binoculars
70mm and 100mm achromatic refractors
4.5", 7", and 12.5" Dobs

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