Tom, I did measure 21.6 on four consecutive nights, but at 2am one morning I got 21.9. So it varies apparently. Chris --- On Mon, 9/15/08, Tom Polakis <tpolakis@xxxxxxx> wrote: > From: Tom Polakis <tpolakis@xxxxxxx> > Subject: [AZ-Observing] Re: Southern Milkyway with Sigma fisheye > To: az-observing@xxxxxxxxxxxxx > Date: Monday, September 15, 2008, 10:33 AM > ---- Chris Schur <comets133@xxxxxxxxx> wrote: > > > sigma 8mm f/3.5 fisheye lens pointed at the zenith... > > Chris, nice shot. That fisheye is really sharp at f/5.0! > Your image shows the North America Nebula and Eta Carinae in > one frame. > > > > The sky was fairly dark in the Outback, reading 21.6 > on the SQM meter in a bland part of the sky. > > Since there was no source of light pollution down to the > horizon, I wonder why the reading wasn't closer to 22.0. > Was the reading affected by the presence of the Milky Way. > I thought that people have read 21.6 from their SQM's at > Five Mile Meadow, which is dark, but it ain't the > Outback. > > Tom > -- > See message header for info on list archives or > unsubscribing, and please > send personal replies to the author, not the list. -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.