From: Ray Byrne <ray@in4media.co.uk>
Date: April 14, 2009 4:42:57 PM MDT
To: Astro_IIDC@yahoogroups.com
Subject: Re: [Astro_IIDC] Seeing in Calgary..
Hi Milton,
My goodness that is exceptionally poor, I get very few moments of good seeing in a year but I don't think I have very few moment of such poor seeing as that in a year either! You poor sod why don't you move to Florida or somewhere :o]
On 14 Apr 2009, at 23:04, Milton Aupperle wrote:
Hi folks;
Just for fun ,I thought I'd share what "typical" seeing is like here in Calgary:
http://groups.yahoo.com/group/Astro_IIDC/files/Planetary/SaturnAverageSeeing_MJA20090404.mp4
using Saturn as an example, taken on the Night of April 4th. It's been overcast, windy or snowing since then so I haven't been able to do anything for a few weeks.
This 157 kilobyte mp4 movie clip shows overexposed Saturn with Titan (and 4 other moons if you curve stretch it). It was shot at 7.5 fps with my C8 at 2,000 mm focal length. I was doing a test run to get the proper exposures for doing a series of shots showing the movement of Saturn's moons over say a 3 to 5 hour period. I wasn't interested in imaging Saturn, just the moon movements.
The Jet Stream was 400 km west of me when this was shot, and is pretty typical of the rapid turbulence changes I get here.
TTYL..
Milton Aupperle
ATB
Ray Byrne
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