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New Rings Of Uranus
volcanopele
post Dec 22 2005, 07:50 PM
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Haven't found an official press release on this but Yahoo has an article up about a few newly discovered rings of Uranus:

http://news.yahoo.com/s/ap/20051222/ap_on_sc/uranus_rings

These rings were found between the Epsilon ring and Miranda's orbit. One apparently was found at around 97,000 km, near the orbit of Mab, suggesting that Mab supplies material for the ring. These rings are apparently quite faint, probably why VGR2 missed them.


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t_oner
post Dec 22 2005, 08:01 PM
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http://hubblesite.org/newscenter/newsdesk/...leases/2005/33/
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Guest_AlexBlackwell_*
post Dec 22 2005, 08:01 PM
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QUOTE (volcanopele @ Dec 22 2005, 07:50 PM)
Haven't found an official press release on this...

This refers to the following paper, which was published online today in Science Express:

The Second Ring-Moon System of Uranus: Discovery and Dynamics
Mark R. Showalter and Jack J. Lissauer
Published online December 22, 2005; 10.1126/science.1122882 (Science Express Research Articles)
Abstract
Supporting Online Material
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volcanopele
post Dec 22 2005, 08:03 PM
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Here is the official press release:

http://hubblesite.org/newscenter/newsdesk/...s/2005/33/full/

Apparently, these new rings were seen by Voyager images, but because they were much farther away from the other rings, they were never noticed.

EDIT: Guess I wasn't fast enough wink.gif


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mars loon
post Dec 22 2005, 11:23 PM
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Here is an article from space.com
http://www.space.com/scienceastronomy/051222_uranus.html

first few paragraphs:

New Moons and Rings Found at Uranus
By SPACE.com Staff

posted: 22 December 2005
03:21 pm ET

Astronomers have discovered new rings and small moons around Uranus and found surprising changes in satellite orbits around the giant planet.

NASA's Hubble Space Telescope photographed a pair of previously unknown rings. The largest is twice the diameter of the planet's previously known rings. The new rings are so far from the planet that they are being called Uranus's "second ring system."

Hubble also spotted two small satellites. One shares its orbit with one of the newly discovered rings. Most surprisingly, the orbits of Uranus's family of inner moons have changed significantly in the last decade, the new data reveal.
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ermar
post Dec 23 2005, 02:45 AM
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QUOTE
Most surprisingly, the orbits of Uranus's family of inner moons have changed significantly in the last decade, the new data reveal.


Ehh? This is why we need an orbiter out there, to make sure they don't switch around on us!
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Decepticon
post Dec 23 2005, 01:38 PM
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QUOTE
Most surprisingly, the orbits of Uranus's family of inner moons have changed significantly in the last decade, the new data reveal.


""Have you checked the Discovery's orbit, lately Dr.Floyd!?"
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Guest_PhilCo126_*
post Dec 23 2005, 05:04 PM
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Well, I guess these guys will have some restyling work laugh.gif laugh.gif laugh.gif
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ljk4-1
post Dec 23 2005, 05:10 PM
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QUOTE (PhilCo126 @ Dec 23 2005, 12:04 PM)
Well, I guess these guys will have some restyling work  laugh.gif  laugh.gif  laugh.gif
http://www.androidworld.com/prod64.htm
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And didn't the HST determine that Neptune's Great Dark Spot has vanished since it was seen by Voyager 2 in 1989? They'll have to update that globe, too.


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Guest_PhilCo126_*
post Dec 23 2005, 05:16 PM
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Certainly any globe of the Gas giant planets will be outdated sooner or later but a globe of the pizza-moon Io could be outdated the next day
laugh.gif
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Ian R
post Jan 16 2006, 08:53 PM
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There was me thinking that the Hubble evidence for the inner new ring was rather tenuous - Keck has just confirmed its existence: cool.gif

http://keckobservatory.org/news/science/05...anus/index.html


Attached Image


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ljk4-1
post Jan 16 2006, 08:59 PM
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QUOTE (Ian R @ Jan 16 2006, 03:53 PM)
There was me thinking that the Hubble evidence for the inner new ring was rather tenuous - Keck has just confirmed its existence:  cool.gif

http://keckobservatory.org/news/science/05...anus/index.html


Attached Image

*


Yeah, that Hubble Space Telescope - you just can't trust it these days.

wink.gif


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"After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance.
I see that such intercourse long continued would make one thoroughly prosaic, hard,
and coarse. But the longest intercourse with Nature, though in her rudest moods, does
not thus harden and make coarse. A hard, sensible man whom we liken to a rock is
indeed much harder than a rock. From hard, coarse, insensible men with whom I have
no sympathy, I go to commune with the rocks, whose hearts are comparatively soft."

- Henry David Thoreau, November 15, 1853

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Decepticon
post Jan 17 2006, 01:57 AM
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That image is just fracken Awesome!
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Guest_PhilCo126_*
post Jan 17 2006, 05:26 PM
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THere'll be an article on 20th anniversary of Voyager - Uranus in BIS Spaceflight magazine March 2006 issue wink.gif

http://www.bis-spaceflight.com/spaceflight.htm
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Rob Pinnegar
post Jan 28 2006, 05:31 PM
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QUOTE (PhilCo126 @ Jan 17 2006, 11:26 AM)
THere'll be an article on 20th anniversary of Voyager - Uranus in BIS Spaceflight magazine March 2006 issue  wink.gif

Surprising that this hasn't been referenced in these threads, as people here generally remember that kind of thing. The 20th anniversary was just a few days ago -- I completely missed it.

I guess it's been sort of overshadowed in everyone's minds by the 20th anniversary of you-know-what (which is today). sad.gif
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