Big storm on Saturn |
Big storm on Saturn |
Dec 15 2010, 12:37 AM
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Member Group: Members Posts: 706 Joined: 3-December 04 From: Boulder, Colorado, USA Member No.: 117 |
The solar system is a happening place this week! I just learned of a major storm in Saturn's northern hemisphere, being monitored by the usual band of talented amateurs. See this site for a list of recent images. Chris Go's site has a particularly nice image.
John |
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Dec 25 2010, 12:13 AM
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#2
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Nice shot of Saturn storm taken by Cassini (props to VP): http://saturn.jpl.nasa.gov/multimedia/imag...5/W00065990.jpg
Using the Solar System calculator to get the actual time of observation (caption indicated 1.323 M km away) sets it at 12/22/2010 23:40 UTC. This observation seemed like it would be nicely centered on Saturn's sunlight hemisphere and thus nicely visible from Earth. Using a rotation rate of 10:47 h for Saturn, and propagating forward, here is an EXCEL table observation times where the storm should be centered on Saturn's visible disk on Earth. (Times are UTC and EST). Saturn rises around 3 AM and is better viewed closer to morning as it rises higher in the pre-dawn sky. I put "XXX" for view times where the storm is likely to be best. (Hopefully I got all the calculations right): Saturn_Storm_spotting_from_Earth__Dec_22_2010___Jan_4_2011_.xls ( 23.5K ) Number of downloads: 726 -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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