[extropy-chat] re: Raw Saturn ring images ready
Amara Graps
amara at amara.com
Thu Jul 1 18:58:31 UTC 2004
Mike Lorrey:
>This image:
>http://saturn.jpl.nasa.gov/cgi-bin/gs2.cgi?path=../multimedia/images/rings/images/SOI9.jpg&type=image
>is extremely curious. The spiralling waves appear to be the
>dissolution of spokes,
No, spokes are probably dust electromagnetically lifted off of the
rings (a process called 'dust levitation').
>or is this an effect of frame dragging?
I could be wrong since I don't know the sequencing of
the ring images, but that image looks like a high resolution
Encke Gap image with the wavy edges gravitationally affected
by Pan.
Pan, the moonlet, was discovered in that gap in old Voyager
data by Mark Showalter in 1990. See:
http://ringmaster.arc.nasa.gov/saturn/vgr2_pps/ppssaturn37.html
http://www.star.ucl.ac.uk/~apod/solarsys/eng/pan.htm
Amara
--
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Amara Graps, PhD email: amara at amara.com
Computational Physics vita: ftp://ftp.amara.com/pub/resume.txt
Multiplex Answers URL: http://www.amara.com/
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"Somewhere something incredible is waiting to be known."
-- Isaac Asimov
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