AJ Crayon wrote: > Last night at Cherry Rd was, perhaps, the best observing conditions I can > remember. Clear, cool, dry and a very slight breeze from time to time. I > rated the seeing and transparency as an easy 7/10 for both and I could easily > be talked into 8/10! AJ, When you give the transparency a rating, is this an assessment of the night independent of where you're set up, or is it a combination of how transparent *and* how dark the site is? For what it's worth, I spent the last eight photometric nights in west Michigan, which has also been experiencing unusually transparent weather in the past couple months. We visited the first "dark sky" observing site I ever used: the (don't laugh) Muskegon Wastewater Facility, which I first alerted the local amateurs to in 1978. Now it boasts two domes and three roll-offs, and a city sign at the entrance. http://members.cox.net/tpolakis/misc/wastewater.jpg To bring this back around to Arizona observing, we should appreciate our state's lighting ordinances. The lighting around Michigan is bad beyond words. Tom -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.