From the FWIW department, I took SQM readings at the AAMM at one hour intervals from 04:00 UT to 08:00 UT Saturday (the night before the 'official' marathon). All readings were taken from the same location: N32° 27.673', W111° 43.843', Elevation 1,716 ft. 04:00 UT - 21.38 05:00 UT - 21.45 06:00 UT - 21.52 07:00 UT - 21.53 08:00 UT - 21.55 Each of these readings was actually an average of three consecutive readings. I didn't take any further readings that night because I became engrossed with galaxies in Canes Venatici (especially the interacting pair known as Arp 269 or NGC4485/4490). I took one reading on Marathon night, around 07:00 UT, but apparently only noted it on my Messier checklist because it isn't in any notes I can find here. ;-) Peter ----- Original Message ----- From: "AJ Crayon" <acrayon@xxxxxxx> To: <az-observing@xxxxxxxxxxxxx> Cc: "Brian Skiff" <bas@xxxxxxxxxx> Sent: Monday, March 19, 2007 6:49 PM Subject: [AZ-Observing] Re: Some thoughts on the AAMM Brian, all I can say is the recording was on the back page of his check list just below M30. So my guess is 5:00AM MST, mainly because M30 rose a round that time. Jim came over to speak with me when many of the lists were being turned in. Unfortunately I didn't get much chance to ask questions. Clear skies, aj -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.