| Revision as of 23:10, 1 June 2005 editVolcanopele (talk | contribs)Extended confirmed users, Pending changes reviewers1,788 editsmNo edit summary← Previous edit |
Latest revision as of 13:01, 10 July 2024 edit undoQwerfjkl (bot) (talk | contribs)Bots, Mass message senders4,012,453 editsm Removed deprecated parameters in {{Talk header}} that are now handled automatically (Task 30)Tag: paws [2.2] |
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{{Talk header}} |
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English pronunciation . |
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{{Article history |
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|action1date=18:02, 17 April 2006 |
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|action1link=Misplaced Pages:Peer review/Enceladus (moon)/archive2 |
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|action2=FAC |
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|action2date=09:46, 2 June 2006 |
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|action2link=Misplaced Pages:Featured article candidates/Enceladus (moon) |
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== Atmosphere == |
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|action3date=2016-07-26 |
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|action3link=Misplaced Pages:Featured article review/Enceladus/archive1 |
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|maindate=July 20, 2006 |
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An atmosphere exists around every larger body of the solar system. The substantial information which is missing here is the pressure / density of the atmosphere. ] 18:52, 18 Mar 2005 (UTC) |
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|currentstatus=FA |
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:The press release announcing the discovery gave no information on the atmospheric properties, only that it is "substantial", whatever that means. --] 20:13, Mar 18, 2005 (UTC) |
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|itn1date=5 April 2014|itn1link=Misplaced Pages:Main_Page_history/2014_April_5 |
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}} |
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{{WikiProject banner shell|class=FA|vital=yes|1= |
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{{WikiProject Astronomy|object=yes|importance=Top|solar_system=yes|ss-importance=High}} |
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{{WikiProject Volcanoes|importance=Low}} |
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{{WikiProject Spoken Misplaced Pages}} |
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{{WikiProject Weather|importance=Low |space-weather-task-force=yes}} |
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}} |
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{{old move|date=16 June 2022|destination=Enceladus (moon)|result=not moved|link=Special:Permalink/1095314267#Requested move 16 June 2022}} |
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== False color image == |
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{{Annual readership}} |
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==Cassini flyby of plume == |
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The data gathered by Cassini in her final flybys in October (E21) and December 2015 (E22) are expected to yield some clues regarding the chemistry of the moon's ocean and prospects for some form of biochemistry. The data may not be published until December 2016, it seems.... |
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: Cassini did a final flyby of Enceladus in late October that targeted the chemistry of the plumes directly. The INMS team, which includes Glein, is searching for molecular hydrogen in that plume, which would be chemical evidence of active serpentinization. An absence of molecular hydrogen would be a sign that the serpentinization is extinct. The data analysis from this flyby may be completed in time for the American Geophysical Union's fall meeting in December. Glein added that the planned NASA mission to Europa includes advanced descendants of both the CDA and INMS instruments, meaning that in a decade or two, scientists can start to make these same measurements at Europa. This will allow us to better understand the importance of serpentinization across the Solar System. |
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I definitely prefer the old picture over the new false color image. I will revert, if nobody objects! ] 13:15, 27 Apr 2005 (UTC) |
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http://www.space.com/32021-how-life-friendly-is-enceladus-ocean.html |
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Done. ] 13:55, 28 Apr 2005 (UTC) |
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:Yes, on ] the concensus was that the main image of a body should look as realistic as possible. Specifically, false-colour images were considered inferior. In fact, apparently you were the one who reverted that one. :-) --] 17:52, Apr 28, 2005 (UTC) |
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::I'm not at all sure that the current image has true colors whatever that means. Enceladus, with its extremely high albedo, is actually bright white or gray, not brown like in this image which looks like a colorized one. But I've to admit that the current image looks much better.--] 19:45, Apr 28, 2005 (UTC) |
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Yes, there should be a better picture, since this is an old Voyager image, I believe. I will take a look at the JPL/Cassini image archive. ] 19:58, 28 Apr 2005 (UTC) |
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I can only find raw images, close-up images of the surface, or false color images that are better than the Voyager image. All other visible light images from the whole moon have less resolution. However, those pictures show a white surface! Should we replace? ] 20:14, 28 Apr 2005 (UTC) |
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== Mass and Density Figures == |
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I have updated the mass and density numbers for Enceladus based on a given by Zibi Turtle last month (not my only source of that information, but it is the only public mention of the change that I am aware of). The density figure is now 1.6 g/cm<sup>3</sup>, compared to the previous value of 1.3. This update is based on the Cassini NAV team's assessment of the reconstructed trajectory of Cassini following two recent flybys. This makes Enceladus denser than the other Saturnian mid-sized icy satellites, suggesting that it is composed of more iron and silicates that those other moons. I'm planning on making a mention of this in the article itself. ] 10:06, 01 Jun 2005 (UTC) |
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The data gathered by Cassini in her final flybys in October (E21) and December 2015 (E22) are expected to yield some clues regarding the chemistry of the moon's ocean and prospects for some form of biochemistry. The data may not be published until December 2016, it seems....
level-4 vital article is rated FA-class on Misplaced Pages's content assessment scale..jpg){kind=small}
