New Rings Of Uranus |
New Rings Of Uranus |
Dec 22 2005, 07:50 PM
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Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
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. -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Dec 22 2005, 08:03 PM
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Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
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 -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Dec 22 2005, 11:23 PM
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Member Group: Members Posts: 548 Joined: 19-March 05 From: Princeton, NJ, USA Member No.: 212 |
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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