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New Hubble Photos of Uranus
Universe Today ^
| 1.22.04
| Universe Today
Posted on 01/28/2004 2:17:44 PM PST by ambrose
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New Hubble Photos of Uranus and Neptune |
Jan 22, 2004 - Atmospheric features on Uranus and Neptune are revealed in images taken with the Space Telescope Imaging Spectrograph and the Advanced Camera for Surveys aboard NASA's Hubble Space Telescope. The observations were taken in August 2003.
The top row reveals Uranus and Neptune in natural colors, showing the planets as they would appear if we could see them through a telescope. The images are made of exposures taken with filters sensitive to red, green, and blue light. In the bottom images, astronomers used different color filters to detect features we can't see. The photographs demonstrate that, by using certain types of color filters, astronomers can extract more information about a celestial object than our eyes normally can see.
At first glance, the top row of images makes the planets appear like twins. But the bottom row reveals that Uranus and Neptune are two different worlds. Uranus's rotational axis, for example, is tilted almost 90 degrees to Neptune's axis. The south poles of Uranus and Neptune are at the left and bottom, respectively. Both are tilted slightly toward Earth. Uranus also displays more contrast between both hemispheres. This may be caused by its extreme seasons.
Both planets display a banding structure of clouds and hazes aligned parallel to the equator. Additionally, a few discrete cloud features appear bright orange or red. The color is due to methane absorption in the red part of the spectrum. Methane is third in abundance in the atmospheres of Uranus and Neptune after hydrogen and helium, which are both transparent. Colors in the bands correspond to variations in the altitude and thickness of hazes and clouds. The colors allow scientists to measure the altitudes of clouds from far away.
Original Source: Hubble News Release
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Copyright © 1999-2003 Universe Today, All rights reserved. http://www.universetoday.com |
TOPICS: Foreign Affairs
KEYWORDS: astronomy; hubble; isthaturanus; mars; moonsofuranus; neptune; ringarounduranus; space; uranus
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To: ambrose
WOW.....Uranus is pretty.
To: ambrose
must...restrain...impulse...to...crack...jokes....pfffttt...
To: ambrose
Only after I eat burritos.
To: ambrose
I've heard that, on a clear night, you can see the moon over Uranus.
24
posted on
01/28/2004 2:26:07 PM PST
by
fishtank
To: evets
I don't know, but I believe I can see the Enterprise.
To my credit I REALLY did try to resist all of this.
25
posted on
01/28/2004 2:26:16 PM PST
by
WayneM
(Cut the KRAP (Karl Rove Amnesty Plan). Call your elected officials and say "NO!!")
To: ambrose
I think they should use Hubble to shoot the moon - really!
26
posted on
01/28/2004 2:26:25 PM PST
by
demlosers
(<a href="http://www.michaelmoore.com">Miserable Failure</a>)
To: ambrose
Web Hubbell's Anus?
I thought it looked like Chelsea...
27
posted on
01/28/2004 2:26:25 PM PST
by
Solson
(Our work is the presentation of our capabilities. - Von Goethe)
To: <1/1,000,000th%
"Klingons!"
28
posted on
01/28/2004 2:27:06 PM PST
by
billorites
(freepo ergo sum)
To: dfwgator
Ass-teroids?
29
posted on
01/28/2004 2:27:21 PM PST
by
evets
(APPLAUSE)
To: ambrose
"Uranus's rotational axis, for example, is tilted almost 90 degrees to Neptune's axis."I assume it's more comfortable in this position?
To: SouthernFreebird
WOW.....Uranus is pretty. And it's pink on the inside.
Take another look :)
31
posted on
01/28/2004 2:28:33 PM PST
by
demlosers
(<a href="http://www.michaelmoore.com">Miserable Failure</a>)
To: ambrose
Are youre sure those are pictures of Uranus?
To: ambrose
Just to satisfy my curiosity...
When was the official pronunciation changed from "youranus" to "urineous"?
My own kids will never know the joy of having their teacher struggle with the humor of it all.
33
posted on
01/28/2004 2:28:48 PM PST
by
WayneM
(Cut the KRAP (Karl Rove Amnesty Plan). Call your elected officials and say "NO!!")
To: ambrose
That could be a result of heat rash.
To: Lurking in Kansas
To: ambrose
First Mars...THEN...Uranus! Who'll plant the flag though?
To: biblewonk
LOL {ping}
37
posted on
01/28/2004 2:33:05 PM PST
by
newgeezer
(I'm a native American. Aren't you?)
To: ambrose
I thought there was supposed to be a picture of my anus?
38
posted on
01/28/2004 2:33:13 PM PST
by
semaj
("....by their fruit you will know them.")
To: ambrose
"Methane is third in abundance in the atmospheres of Uranus " (who knew?) btw - What is that ring of debris around Uranus?
39
posted on
01/28/2004 2:33:50 PM PST
by
evets
(APPLAUSE)
To: Unmarked Package
"Uranus's rotational axis, for example, is tilted almost 90 degrees to Neptune's axis."I'd hate to be "downwind."
40
posted on
01/28/2004 2:34:51 PM PST
by
dfwgator
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