[AZ-Observing] Re: GCSP North Rim Report

  • From: "Steven Dodder" <sdodder@xxxxxxxxxxx>
  • To: az-observing@xxxxxxxxxxxxx
  • Date: Wed, 28 Jun 2006 05:00:50 +0000

I do believe that was me with that report, Dean.  Not sure who was at the 
other end, (Bernie?) on the south rim, but it made a very clearly defined 
and very, very bright circle of green about 10 to 12' in diameter on the 
wall of the North Rim Lodge above me.  I reciprocated with a red laser 
pointer, used, and now prohibited in college classes, and was told it was 
also clearly visible.  Without something solid or uniform to project upon, 
trees being the only backdrop, a circle diameter was not determined at the 
south rim to my knowledge.  When the green beam swept above us, I could not 
see the beam, but I could easily locate the source on the other rim.
  At first I thought, "Amazing!"  Then, I thought of what might happen if 
the laser light was caught by a telescope observing, oh, say, Omega 
Centauri, (which is visible from the north for longer than the south).  I 
think that would be a bad thing.  Especially if it was someone new to the 
hobby.
   Once again, I vote we curtail the random laser wars in favor of either 
none at all, or a more controlled, prearranged "test", if you will.
  I will not be taking part, either way.

Steve and Rosie Dodder
sdodder@xxxxxxxxxxx
Visit my web site at http://www.stargazing.net/Astroman




>From: ketelsen@xxxxxxxxxxxxxx
>Reply-To: az-observing@xxxxxxxxxxxxx
>To: az-observing@xxxxxxxxxxxxx
>Subject: [AZ-Observing] Re: GCSP North Rim Report
>Date: Tue, 27 Jun 2006 13:14:27 -0700 (MST)
>
>All-
>
>While using my lil' ole 5mw at the Canyon rim along with a pair of
>binoculars, the circular beam of light 4 or 5 feet in diameter could
>easily be seen projected down on the Tonto Plateau a couple miles away.  A
>few years back, someone at the north rim reported back to me that a laser
>(not necessarily mine, but I was careful to steady it against something
>once) made a pretty sharply defined circular spot about 15 feet in
>diameter at the north rim distance of 10 miles...
>
>-Dean


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