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[AZ-Observing] Re: [amastro] Another twilight SQM series
- From: "Rick Tejera" <saguaroastro@xxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>, <amastro@xxxxxxxxxxxxxxx>
- Date: Wed, 5 Dec 2007 06:14:20 -0700
Interesting to note that the curve truly flattens out at Astronomical
twilight
Clear Skies
Rick Tejera
President, Editor SACnews
Saguaro Astronomy Club
Phoenix, Arizona
www.saguaroastro.org
saguaroastro@xxxxxxx
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Tom Polakis
Sent: Tuesday, December 04, 2007 23:19
To: amastro@xxxxxxxxxxxxxxx
Cc: AZ-Observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: [amastro] Another twilight SQM series
I felt compelled to plot Brian's data.
http://members.cox.net/tpolakis/astro/SQMsunset1.jpg
http://members.cox.net/tpolakis/astro/SQMsunset2.jpg
In the latter plot, I have run the desktop planetarium software to compute
the solar depression angles.
Tom
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