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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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1
posted on
01/28/2004 2:17:44 PM PST
by
ambrose
To: ambrose
Here come the jokes.
Nice post!
To: ambrose
Nope, not gonna go there, nope, not gonna do it.
3
posted on
01/28/2004 2:18:49 PM PST
by
dfwgator
To: ambrose
no wise cracks
4
posted on
01/28/2004 2:18:50 PM PST
by
steveo
(Alwyas use you're spell checkor)
To: Phil V.; RadioAstronomer
ping.
5
posted on
01/28/2004 2:19:00 PM PST
by
ambrose
To: <1/1,000,000th%
you can tell its cold from the bluish color.
6
posted on
01/28/2004 2:19:05 PM PST
by
cripplecreek
(.50 cal border fence)
To: ambrose
Got any pictures of Uranus?
No?
Want to see some?
7
posted on
01/28/2004 2:19:07 PM PST
by
VRWCmember
(Dick Gephardt is a <a href="http://www.michaelmoore.com" target="_blank">miserable failure </a>)
To: ambrose
Uh oh...
8
posted on
01/28/2004 2:20:03 PM PST
by
Nexus
To: dfwgator
Judging by these pictures, Uranus is more colorful than we had originally thought.
9
posted on
01/28/2004 2:20:06 PM PST
by
ambrose
To: ambrose
10
posted on
01/28/2004 2:21:01 PM PST
by
finnman69
(cum puella incedit minore medio corpore sub quo manifestus globus, inflammare animos)
To: ambrose
Who'll be the first to get one deleted?
To: ambrose
"...pictures of Uranus."
Can't be. Too much blue, not enough yellow.
12
posted on
01/28/2004 2:22:35 PM PST
by
Petronski
(I'm *NOT* always *CRANKY.*)
To: ambrose
Holy crap.
13
posted on
01/28/2004 2:23:06 PM PST
by
LurkedLongEnough
(Oh-no, I won't leave no stone un-turned.)
To: <1/1,000,000th%
They oughta change the name to like Urecktum or something.
Okay, where'd I get that?
14
posted on
01/28/2004 2:23:31 PM PST
by
correctthought
(Shop smart, shop S-mart.)
To: ambrose
Where's the 'Klingons'?
15
posted on
01/28/2004 2:23:34 PM PST
by
evets
(APPLAUSE)
To: ambrose
Looks like it's wrapped in tie dye toilet paper....cool
To: nobody_knows
You do realize that Uranus consists mostly of toxic gases?
17
posted on
01/28/2004 2:25:12 PM PST
by
ambrose
To: ambrose
Uraguay *giggle*
18
posted on
01/28/2004 2:25:14 PM PST
by
rabidralph
(All your debate are belong to us.)
To: ambrose
So this would be a Hubbloscopy?
19
posted on
01/28/2004 2:25:32 PM PST
by
Spok
To: evets
Maybe they should try to put some Preparation H on those red spots.
20
posted on
01/28/2004 2:25:34 PM PST
by
dfwgator
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