Enceladus

[hummingbird69]

Hi everyone,<br /><br />Does anyone have any links or images of some really good close ups of Enceladus?<br /><br />

 

[qso1]

Hope these help.<br /><br />http://www.saturntoday.com/news/viewsr.rss.html?pid=21992<br /><br />http://www.nasa.gov/mission_pages/cassini/media/cassini-20060309.html<br /><br />http://www.nasa.gov/vision/universe/solarsystem/cassini-021805.html<br /><br />A link list on the lower part of this page.<br />http://ciclops.org/index.php?flash=1<br /><br />A couple of 'Click to views" can be seen here at SDC.<br />http://www.space.com/scienceastronomy/060309_cassini_water.html<br /><br />Wiki seems to have the closeups.<br />http://en.wikipedia.org/wiki/Enceladus_(moon) <div class="Discussion_UserSignature"> <p><strong>My borrowed quote for the time being:</strong></p><p><em>There are three kinds of people in life. Those who make it happen, those who watch it happen...and those who do not know what happened.</em></p> </div>

 

[search]

Here you find many<br />http://photojournal.jpl.nasa.gov/target/Enceladus<br />Closest fly by<br />http://photojournal.jpl.nasa.gov/catalog/PIA06205<br />An expanded<br />http://photojournal.jpl.nasa.gov/jpeg/PIA07800.jpg

 

[hummingbird69]

qso1<br /><br />Thanks for the many links! <img src="/images/icons/smile.gif" /> <img src="/images/icons/smile.gif" /><br /><br />I'm a big fan of Enceladus. <br /><br />Before my other computer crashed , had some good pictures , but lost them. <img src="/images/icons/frown.gif" /><br /><br />One I believe I got from here was a very good close up picture. I treasured that one , and hope to find it again!

 

[hummingbird69]

Our search for liquid water has taken a new turn. The type of evidence for liquid water on Enceladus is very different from what we've seen at Jupiter's moon Europa. On Europa the evidence from surface geological features points to an internal ocean. On Enceladus the evidence is direct observation of water vapor venting from sources close to the surface," said Dr. Peter Thomas, Cassini imaging scientist, Cornell University, Ithaca, N.Y. <br /><br />In the spring of 2008, scientists will get another chance to look at Enceladus when Cassini flies within 350 kilometers (approximately 220 miles), but much work remains after Cassini's four-year prime mission is over. <br /><br />"There's no question that, along with the moon Titan, Enceladus should be a very high priority for us. Saturn has given us two exciting worlds to explore," said Dr. Jonathan Lunine, Cassini interdisciplinary scientist, University of Arizona, Tucson, Ariz. <br /><br /> qso1 link cassini mission

 

[qso1]

In planning for a future unmanned mission to Saturn, or even Jupiter for that matter. The best way IMO to investigate priority targets is to send out probes with multiple elements such as landers etc. Especially for distant targets like Saturn which takes years to get to. Microminiarization of electronic and computer components by the time we can launch such probes will make it easier to build multiple unmanned probes which attach to a larger single orbiter. Hopefully a robust low cost access to earth orbit will be in place and a commercial service can take the probes to LEO for checkout before they depart to Jupiter and/or Saturn.<br /><br />At Jupiter, an orbiter with four probes for example, could send one to the four major jovian moons. Or three to jovian moons and one into Jupiters atmosphere.<br /><br />At Saturn, Titan and Enceladus would probably be the top two targets, followed by Mimas and for me anyway, an as yet undertermined moon or maybe co orbit within extreme close proximity to the ring system.<br /><br />Of course, under present conditions, the cost of such a venture would probably force a scaling back to maybe two probes per orbiter which makes selection of targets tougher because the major ones are all worthy of detailed exploration. At Saturn however, I'd be inclined to say Enceladus and Titan would make any list. <div class="Discussion_UserSignature"> <p><strong>My borrowed quote for the time being:</strong></p><p><em>There are three kinds of people in life. Those who make it happen, those who watch it happen...and those who do not know what happened.</em></p> </div>

 

[ldyaidan]

I would like to see us launch multiple probes, on the same launch. Seems we would save money, by launching several probes, similar to the mars probes, then have them separate and go to their individual destinations.<br /><br />Rae

 

[qso1]

ldyaidan:<br />I would like to see us launch multiple probes, on the same launch...<br /><br />Me:<br />Unfortunately, with todays technology. Probe launches are restricted to the orbital mechanics in question. An example being that the right launch and Jupiter orbit entry opportunity may exist for Jupiter but not for Saturn. Planetary flyby availability is another factor.<br /><br />Fortunately, money for unmanned flight is not nearly as big an issue as it is with manned flight. Most of the complaining about spending is directed towards manned missions. Launching a couple of probes on a single LV is a good idea. Launching much more may not be so good if the LV fails. Of course, by the time we launch such probes, the LV question may be rendered moot by the availability of a private industry/enterprise LEO solution. <div class="Discussion_UserSignature"> <p><strong>My borrowed quote for the time being:</strong></p><p><em>There are three kinds of people in life. Those who make it happen, those who watch it happen...and those who do not know what happened.</em></p> </div>

 

[ldyaidan]

I was thinking more of launching multiple probes at once to the moons that we've been discussing: Enceladus and Europa. Sorry I wasn't very clear.<br /><br />Rae<br />

 

[CalliArcale]

<blockquote><font class="small">In reply to:</font><hr /><p>One I believe I got from here was a very good close up picture. I treasured that one , and hope to find it again! <p><hr /></p></p></blockquote><br /><br />Was it this one? This is the closest picture ever taken of Enceladus. It reveals a very strange surface. <div class="Discussion_UserSignature"> <p> </p><p><font color="#666699"><em>"People assume that time is a strict progression of cause to effect, but actually from a non-linear, non-subjective viewpoint it's more like a big ball of wibbly wobbly . . . timey wimey . . . stuff."</em>  -- The Tenth Doctor, "Blink"</font></p> </div>

 

[hummingbird69]

<br />CalliArcale<br /><br />It was even more detailed and it was colored darker in coloration. I believe it was an image closer to the Moon than in the files from Cassini.

 

[telfrow]

For everyone's reference, there was a rather extensive thread on the subject, "Enceladus, the Europa of Saturn," that can be found here. <div class="Discussion_UserSignature"> <strong><font color="#3366ff">Made weak by time and fate, but strong in will to strive, to seek, to find and not to yeild.</font> - <font color="#3366ff"><em>Tennyson</em></font></strong> </div>

 

[telfrow]

Enceladus from the September 9th Cassini encounter. <div class="Discussion_UserSignature"> <strong><font color="#3366ff">Made weak by time and fate, but strong in will to strive, to seek, to find and not to yeild.</font> - <font color="#3366ff"><em>Tennyson</em></font></strong> </div>

 

[hummingbird69]

cool! Got some good links on that thread.

 

[dragon04]

My favorite one was the false color image that had the blue hues in the southern hemisphere. <div class="Discussion_UserSignature"> <em>"2012.. Year of the Dragon!! Get on the Dragon Wagon!".</em> </div>

 

[bonzelite]

<font color="yellow"><br />In planning for a future unmanned mission to Saturn, or even Jupiter for that matter. The best way IMO to investigate priority targets is to send out probes with multiple elements such as landers etc. Especially for distant targets like Saturn which takes years to get to. Microminiarization of electronic and computer components by the time we can launch such probes will make it easier to build multiple unmanned probes which attach to a larger single orbiter. Hopefully a robust low cost access to earth orbit will be in place and a commercial service can take the probes to LEO for checkout before they depart to Jupiter and/or Saturn. </font><br /><br />700% agree. <br /><br />btw, link to superclose pic of Enceladus is amazing.

 

[qso1]

I've always found the ridge like structures fascinating because they run into each other and sort of blend in at the seams so to speak. I can't think of anything on earth like them. The conelike features are pretty wild looking as well. <div class="Discussion_UserSignature"> <p><strong>My borrowed quote for the time being:</strong></p><p><em>There are three kinds of people in life. Those who make it happen, those who watch it happen...and those who do not know what happened.</em></p> </div>

 

[hummingbird69]

qso1<br /><br />Yes the features of a close up are pretty wild looking. You will see overlapping of these ridge like structures that just continue on in scriss crossing fashion. Like tree's growing horizontally without leaves, branches growing out and on top of each other. <img src="/images/icons/smile.gif" />

 

[qso1]

Good description. <div class="Discussion_UserSignature"> <p><strong>My borrowed quote for the time being:</strong></p><p><em>There are three kinds of people in life. Those who make it happen, those who watch it happen...and those who do not know what happened.</em></p> </div>

 

[phumanchuzi]

I have a question for anyone who wants to answer. I am new to the space sciences so don't get to technical. The question is, how does the orbital resonance of Dione affect Enceladus? And what is the correlation between the cassini mission findings on Enceladus and orbital resonance?

 

[3488]

Welcome, phumanchuzi.<br /><br />Some things about Enceladus you might be interested in.<br /><br />Orbital Distance from Saturn: 238,000 KM.<br /><br />Orbital Period: 1 Day, 8 Hours & 53 minutes.<br />Rotation: Same as above. Keeps same face turned towards Saturn.<br /><br />Dimensions.<br />Equatorial Diameter, east to west: 495 KM.<br />Longest Axis towards Saturn: 512 KM.<br />Polar Diameter: 488 KM.<br /><br />Average Density: 1.2 Grams Per Cubic Centimetre.<br /><br />Escape Velocity: 200 Metres per second.<br /><br />Enceladus appears to be mostly made of ice, but has at least 25% by mass of silicate <br />rock & perhaps a little metal.<br /><br />Enceladus is an active world, quite surprising owing its smallish size & fairly low mass.<br /><br />One explanation, is that Enceladus is in orbital resonance with Dione, two major <br />moons out (Tethys orbits Saturn between Enceladus & Dione).<br /><br />Dione is much larger, is considerably more massive than Enceladus (approx by 14.28 times) &<br />is also denser approx 1.4 Grams Per <br />Cubic Centimetre.<br /><br />Enceladus is not heavily cratered & the distribution of craters is not random.<br /><br />The northern TRAILING hemisphere of the Saturn FACING hemisphere of Enceladus is <br />the most heavily cratered (this suggests Enceladus may have rolled over at some point).<br /><br />The LEADING hemisphere of Enceladus is almost crater free, a very UNLIKELY scenario, <br />as the leading hemisphere of a planetary moon, is most likely to be cratered, as that part of the<br />body, faces head on into potential impactors, further evidence of Enceladus rolling <br />over & also the area looks recently resurfaced.<br /><br />Please see this excellent image of the leading hemisphere of Enceladus, taken<br />by Cassini & processed by another SDC member Anthmartian. <br /><br />Also other views <div class="Discussion_UserSignature"> <p><font color="#000080">"I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before".</font> <em><strong><font color="#000000">Linda Morabito </font></strong><font color="#800000">on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.</font></em></p><p><font size="1" color="#000080">http://www.launchphotography.com/</font><br /><br /><font size="1" color="#000080">http://anthmartian.googlepages.com/thisislandearth</font></p><p><font size="1" color="#000080">http://web.me.com/meridianijournal</font></p> </div>

 

[alokmohan]

What is special about Enceladus?These days news of moon are very trite.

 

[alokmohan]

What is special about Enceladus?These days news of mon are very trite.

 

[alokmohan]

What is special about enceladus|Moons of Jupiter are getting more coverage and most of these go back to voyager days.Young men should know details of voyager .

 

[phumanchuzi]

I am trying to learn about all of the different moons with potential for life. Enceladus just happens to be one of them.