Big storm on Saturn |
Big storm on Saturn |
Feb 25 2011, 01:59 PM
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#76
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Senior Member Group: Admin Posts: 3108 Joined: 21-December 05 From: Canberra, Australia Member No.: 615 |
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Feb 25 2011, 02:14 PM
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#77
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Wow... we've had MER Monopoly...
I think we just saw the first CASSINI Jigsaw... Note to all: I had the idea first, and I'm in the middle of watching THE SOCIAL NETWORK, so no-one get any ideas about suing me in years to come, ok? -------------------- |
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Feb 26 2011, 04:21 AM
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#78
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Comparison graphic showing similarities/differences between the Jan 12 and Feb 23 Saturn storm observation:
Full resolution WAC MethanoVision RGB [Mt3, MT2, CB2] of the Feb 23 observation is here: http://www.flickr.com/photos/31678681@N07/5478172432/ -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Feb 26 2011, 09:07 AM
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#79
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
Just got back from London: drooled over Charlie Brown (not literally), gawped at Ralph's penetrometer -- and even touched a chunk of the Titanic's hull!
Oh, and here's a quick RGB composite from this latest, bountiful, batch of raws: -------------------- |
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Feb 26 2011, 09:14 AM
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#80
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
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Feb 26 2011, 09:31 AM
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#81
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
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Feb 27 2011, 02:48 PM
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#82
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Saturn RGB[RED,GRN, BL1] composite Feb 25, 2011. Details enhanced with a HiPass filtered overlay of the CB2 IRP90 image:
-------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Feb 27 2011, 06:26 PM
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#83
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Composite of images in the CB2 IR band taken from Feb 23-25, 2011 coordinated and stacked to show the full length and features of the massive storm:
-------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Guest_Sunspot_* |
Feb 27 2011, 07:29 PM
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#84
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Guests |
In terms of scale how does this storm compare to those that have previously appeared?
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Feb 28 2011, 07:26 PM
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#85
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
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Feb 28 2011, 07:42 PM
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#86
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
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Guest_Sunspot_* |
Feb 28 2011, 11:02 PM
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#87
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Guests |
Are the clouds in the storm moving fast enough to cause some motion blur in the images?
http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=234025 If you take a look at that image, the cloud features on the left have sharp boundaries, the clouds in the storm look very soft - like motion blur? |
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Feb 28 2011, 11:16 PM
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#88
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
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Mar 1 2011, 12:32 AM
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#89
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Member Group: Members Posts: 706 Joined: 3-December 04 From: Boulder, Colorado, USA Member No.: 117 |
Are the clouds in the storm moving fast enough to cause some motion blur in the images? It sure *looks* like motion blur, but I don't think the numbers work out. The resolution of that image is about 20 km/pixel, and typical Cassini ISS exposure times for sunlit objects are maybe 1/100th to 1/10th of a second. So to get a couple of pixels of blur would require cloud speeds of 400 - 4000 kilometers/second- the clouds would exceed escape velocity. John |
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Mar 1 2011, 02:04 AM
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#90
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Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
CB2 frames are 3.2 seconds exposures. MT frames are longer IIRC.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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