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Whilst I don't doubt the accuaracy of these figures for low areas, I can add the following in regard to the "higher level areas".
Steven Lee and other staff who work at the AAT, keep a very detailed record of all the relevant weather conditions each and every night at the AAT at Siding Springs, as part of their observational logs and respective telescope usage. I was chatting with Steven in October about the number of clear nights at Coona. He indicated that each year they averaged just over "200" clear observing nights, on top of the mountain.
Cheers,
John B
Last edited by ausastronomer; 24-01-2008 at 06:49 AM.
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