[AZ-Observing] Re: More GIF fun!
- From: "Jimmy Ray" <jimmy_ray@xxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Sun, 11 Mar 2007 17:26:31 -0700
Great stuff Dean! The movement of the scopes and the clouds add a lot of
interest. I found it interesting to see how much Polaris moves. It is
further out from the pole than one realizes. Was interesting as well to see
how much illumination the moon brought to the last sequence. Thank you for
sharing them.
Jimmy Ray
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx]On Behalf Of
ketelsen@xxxxxxxxxxxxxx
Sent: Sunday, March 11, 2007 4:25 PM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] More GIF fun!
Hi All-
I haven't had an AZ-Observing note in days, rare for a semi-dark weekend -
am I missing anything?
I got permission to go up to Kitt Peak friday night and spend a few hours
taking some photo sequences. The first one is with the 20mm at F/4 - a 90
second exposure every 3 minutes - about an hour of elapsed time:
http://alice.as.arizona.edu/~ketelsen/WorkingScopes1.gif
The next is with a 16mm fisheye same exposure info as above. The flash of
lights are the 15 cars I counted going down the hill from the evening
observing program:
http://alice.as.arizona.edu/~ketelsen/WorkingScopes2.gif
And the last is from a mile down the road, looking back with an 80mm lens
at F/2 - 60 second exposures every 2 minutes. Moonrise happens about 3/4
of the way thru:
http://alice.as.arizona.edu/~ketelsen/WorkingScopes3.gif
At first I thought the clouds (which mostly stayed north) would make the
GIFs poor, but I think they add a lot to the sequences. Fortunately, they
didn't get high enough to affect the big scopes much. Anyone want to
declare favorites?
-Dean
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