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Uranus Has a Dark Spot
space.com ^ | october 31, 2006 | kathy rages

Posted on 10/31/2006 3:17:52 AM PST by beebuster2000

Images of Uranus reveal for the first time a dark spot.

During the past decade, many bright spots have been seen on Uranus, in both red and near-infrared filters. But this is the first dark spot ever seen on the planet. A team led by Lawrence Sromovsky of the University of Wisconsin and including Kathy Rages of the SETI Institute, Heidi Hammel of the Space Science Institute (Boulder, CO), and Patrick Fry of U. Wisconsin, observed the dark spot on Aug. 23 using the Hubble Space Telescope (HST).

(Excerpt) Read more at space.com ...


TOPICS:
KEYWORDS: astronomy; awjeez; moonsofuranus; notagain; ringarounduranus; uranus

1 posted on 10/31/2006 3:17:52 AM PST by beebuster2000
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To: beebuster2000

I'm afraid to ask for pictures...


2 posted on 10/31/2006 3:18:50 AM PST by Dallas59 (Muslims Are Only Guests In Western Countries)
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To: beebuster2000

Please, folks, be nice.


3 posted on 10/31/2006 3:19:45 AM PST by Fresh Wind (Democrats are guilty of whatever they scream the loudest about.)
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To: Dallas59

This is too damn easy.....


4 posted on 10/31/2006 3:19:51 AM PST by Gaffer
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To: beebuster2000

TP will fix that.


5 posted on 10/31/2006 3:20:45 AM PST by shekkian
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To: beebuster2000

6 posted on 10/31/2006 3:21:03 AM PST by Eepsy
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To: beebuster2000

Oh yeah, well...your momma wears army boots.


7 posted on 10/31/2006 3:22:00 AM PST by tsmith130
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To: beebuster2000

Is the dark spot the feature named Clymer's Gap?


8 posted on 10/31/2006 3:22:29 AM PST by piasa (Attitude Adjustments Offered Here Free of Charge)
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To: beebuster2000

You just now noticing?


9 posted on 10/31/2006 3:23:15 AM PST by chemicalman (Doing my part to maintain global warming/cooling.)
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To: beebuster2000

This was run a few weeks ago with all the appropriate potty jokes.


10 posted on 10/31/2006 3:23:48 AM PST by saganite (Billions and billions and billions-------and that's just the NASA budget!)
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To: beebuster2000

anus................

heh heh

heh heh heh


11 posted on 10/31/2006 3:24:50 AM PST by WhiteGuy (DeWine ranked as one of the ten worst border security politicians - Human Events)
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To: piasa

OK I'll play... "Spincterville"


12 posted on 10/31/2006 3:25:51 AM PST by RedEyeJack
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To: beebuster2000
U·ra·nus (yʊr'ə-nəs, yʊ-rā'nəs, ) pronunciation n. 1. Greek Mythology. The earliest supreme god, a personification of the sky, who was the son and consort of Gaea and the father of the Cyclopes and Titans. 2. The seventh planet from the sun, revolving about it every 84.01 years at a mean distance of approximately 2.9 billion kilometers (1.8 billion miles), having a mean equatorial diameter of 51,118 kilometers (31,764 miles) and a mass 14.6 times that of Earth. [Late Latin Ūranus, from Greek ouranos, heaven, Uranus.]
13 posted on 10/31/2006 3:30:04 AM PST by Dallas59 (Muslims Are Only Guests In Western Countries)
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To: beebuster2000


Uranus is the seventh planet from the Sun and is the third largest in the solar system. It was discovered by William Herschel in 1781. It has an equatorial diameter of 51,800 kilometers (32,190 miles) and orbits the Sun once every 84.01 Earth years. It has a mean distance from the Sun of 2.87 billion kilometers (1.78 billion miles). It rotates about its axis once every 17 hours 14 minutes. Uranus has at least 22 moons. The two largest moons, Titania and Oberon, were discovered by William Herschel in 1787.

The atmosphere of Uranus is composed of 83% hydrogen, 15% helium, 2% methane and small amounts of acetylene and other hydrocarbons. Methane in the upper atmosphere absorbs red light, giving Uranus its blue-green color. The atmosphere is arranged into clouds running at constant latitudes, similar to the orientation of the more vivid latitudinal bands seen on Jupiter and Saturn. Winds at mid-latitudes on Uranus blow in the direction of the planet's rotation. These winds blow at velocities of 40 to 160 meters per second (90 to 360 miles per hour). Radio science experiments found winds of about 100 meters per second blowing in the opposite direction at the equator.

Uranus is distinguished by the fact that it is tipped on its side. Its unusual position is thought to be the result of a collision with a planet-sized body early in the solar system's history. Voyager 2 found that one of the most striking influences of this sideways position is its effect on the tail of the magnetic field, which is itself tilted 60 degrees from the planet's axis of rotation. The magnetotail was shown to be twisted by the planet's rotation into a long corkscrew shape behind the planet. The magnetic field source is unknown; the electrically conductive, super-pressurized ocean of water and ammonia once thought to lie between the core and the atmosphere now appears to be nonexistent. The magnetic fields of Earth and other planets are believed to arise from electrical currents produced in their molten cores.

Uranus' Rings

In 1977, the first nine rings of Uranus were discovered. During the Voyager encounters, these rings were photographed and measured, as were two other new rings and ringlets. Uranus' rings are distinctly different from those at Jupiter and Saturn. The outermost epsilon ring is composed mostly of ice boulders several feet across. A very tenuous distribution of fine dust also seems to be spread throughout the ring system.

There may be a large number of narrow rings, or possibly incomplete rings or ring arcs, as small as 50 meters (160 feet) in width. The individual ring particles were found to be of low reflectivity. At least one ring, the epsilon, was found to be gray in color. The moons Cordelia and Ophelia act as shepherd satellites for the epsilon ring.
14 posted on 10/31/2006 3:34:52 AM PST by Dallas59 (Muslims Are Only Guests In Western Countries)
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To: beebuster2000

There's a joke there somewhere......


15 posted on 10/31/2006 3:35:09 AM PST by caver (Yes, I did crawl out of a hole in the ground.)
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To: beebuster2000

can't we just get on with renaming the planet Urectum so the silly jokes can stop?


16 posted on 10/31/2006 4:01:03 AM PST by CzarNicky (The problem with bad ideas is that they seemed like good ideas at the time.)
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To: CzarNicky

what joke? this is a serious science ping.


17 posted on 10/31/2006 4:07:54 AM PST by beebuster2000
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To: beebuster2000

Here is an earlier thread with lots of funny.... uhem. I mean, "scientific" comments.

Hubble spots dark spot on Uranus (picture)

10/06/2006 7:36:43 PM EDT

http://www.freerepublic.com/focus/f-chat/1715170/posts


18 posted on 10/31/2006 4:25:50 AM PST by Mr. Brightside
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To: caver

Here's a joke....

What do toilet paper and the starship Enterprise have in common?

They're both flying out past Uranus looking for Klingons.


19 posted on 10/31/2006 4:38:59 AM PST by fredhead (Women want me, fish fear me.....I can dream, can't I?)
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To: beebuster2000

nice title

/s


20 posted on 10/31/2006 7:15:01 AM PST by george76 (Ward Churchill : Fake Indian, Fake Scholarship, and Fake Art)
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To: beebuster2000
Uranus Has a Dark Spot....

From whence an evil wind blows.

21 posted on 10/31/2006 7:17:06 AM PST by jwalsh07 (PUNCH foley for Joe Negron!)
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To: beebuster2000
These ought to clear up that dark spot:


22 posted on 10/31/2006 8:31:25 AM PST by VRWCmember
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To: Gaffer

...darn near killed 'em!


23 posted on 10/31/2006 9:38:10 AM PST by BenLurkin ("The entire remedy is with the people." - W. H. Harrison)
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To: beebuster2000

Since the jokes write themselves on this one, I'm not going to. :)


24 posted on 10/31/2006 9:39:40 AM PST by BeHoldAPaleHorse ( ~()):~)>)
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To: beebuster2000

This thread is going to be fun.


25 posted on 10/31/2006 9:43:37 AM PST by NCC-1701 (To boldy go where no FReeper has gone before. Live long and prosper.)
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To: beebuster2000

I Pray that it's not Asphault--a serious rectal disorder.


26 posted on 10/31/2006 9:59:45 AM PST by Miss Behave (Beloved daughter of Miss Creant, super sister of danged Miss Ology, and proud mother of Miss Hap.)
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