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Big storm on Saturn
Ron Hobbs
post Mar 16 2011, 04:48 AM
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QUOTE (Astro0 @ Mar 10 2011, 04:55 AM) *
... then (in Stu-terms) "muck about with it and not claiming 1000% accuracy"


You guys 'muck about' so well. Please keep it up.
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Ian R
post Mar 23 2011, 12:09 PM
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This is the latest WAC view of the storm, rendered in CB-GRN-RED colour:

Attached Image


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tedstryk
post Mar 25 2011, 11:30 AM
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I took a crack at the storm on my blog. http://planetimages.blogspot.com/2011/03/s...-on-saturn.html


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Stu
post Mar 25 2011, 11:58 AM
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Very subtle, Ted, I like that a lot.


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ElkGroveDan
post Mar 25 2011, 02:21 PM
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Awesome. I get the sense that it is disrupting the belts to the North.


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If Occam had heard my theory, things would be very different now.
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Juramike
post Mar 25 2011, 05:08 PM
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I think it is disrupting belts to the South. In Ted's processed image, I think the storm is located to the W of the little "bright V-shaped" indentation and the storm oval itself is not really obvious in visible wavelengths (but evident and bright in Cassini methane transmission images). The storm is slightly oval and oriented SW-NE (the bright V-shaped region is at the E edge). Immediately under this region, the clouds at the southern edge are getting churned up.

Since this image was taken, some of the bright clouds (both north and south of the storm oval zone) have kicked up and become more impressive. Check out some of the images from the 18th and 22nd of March in the IPOW database: http://www.pvol.ehu.es/pvol/index.jsp?action=iopw



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Juramike
post Mar 28 2011, 12:10 AM
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Saturn MethanoVision RGB[MT3,MT2,CB2] composite for March 21, 2011:

Attached Image


The storm oval can be clearly seen in this composite as a brighter gray upwellling with the bright white "pickelfork" cloud structure stretching to the E. Compare with Ian's image above.


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Juramike
post Mar 28 2011, 12:13 AM
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Here is a downsampled comparison graphic of Cassini MethanoVision composite MT3,MT2,CB2] and IR-visible[CB2,GRN,BL1] raw image composites, and corresponding ground-based images of the north temperate storm over a three month period (January - February, and March).

Attached Image


(Much bigger) Full resolution is here: http://www.flickr.com/photos/31678681@N07/5565613071/


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S_Walker
post Mar 29 2011, 11:13 AM
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Very nice presentation Mike.
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S_Walker
post Mar 29 2011, 11:16 AM
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Excellent Ted-
I downloaded and animated the best frames of the Hubble data too:
Saturn storm animation

Be sure to watch it in HD.
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john_s
post Mar 29 2011, 03:24 PM
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Very nice! Good view of the ring spokes too- I'm not aware of the spokes having been seen from the Earth before, though maybe they have, and I've missed it.

John
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machi
post Mar 29 2011, 05:49 PM
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Nice comparison Mike and my deep admiration of images from amateur astronomers!
And thanks to Ian, Ted and others for very good temporal coverage of evolution of the storm!


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Guest_Sunspot_*
post Apr 24 2011, 08:51 PM
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Guests






Has the storm flared up a bit??

http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=236730
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Ian R
post Apr 27 2011, 04:06 AM
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Attached Image


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Juramike
post May 1 2011, 03:39 AM
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MethanoVision [MT3,MT2,CB2] of the big storm on Saturn on April 25, 2011. High Pass CB2 layer added to enhance detail. A small section of ring containing the moon (Rhea) was shifted to match the CB2 base image.

Attached Image



Compare with the RGB composite here. The storm center is evident in MT3 and MT2 images, but not the visible or CB2 images.


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