A ring for Rhea? - Unmanned Spaceflight.com

A ring for Rhea?

Patteroast View Member Profile	Mar 6 2008, 07:24 PM Post #1
Junior Member Group: Members Posts: 43 Joined: 31-May 05 From: Bloomington, Minnesota Member No.: 397	Space.com article If this pans out, there goes Rhea being the most boring moon...

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nprev View Member Profile	Jul 7 2010, 04:09 AM Post #2
Merciless Robot Group: Admin Posts: 8791 Joined: 8-December 05 From: Los Angeles Member No.: 602	Hmm. I don't know. Why would a magnetic field be required to produce a symmetrical gas distribution around any random body of sufficient mass? This is not a perfect analogy by any means, but Triton has an exceedingly thin atmosphere & (IIRC) no field. -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.

Posts in this topic

Patteroast A ring for Rhea? Mar 6 2008, 07:24 PM

ugordan QUOTE Scientists detected hints of the rings when ... Mar 6 2008, 07:42 PM

Juramike If indeed there was a ring system around Rhea, wou... Mar 6 2008, 07:52 PM

Superstring The article below goes into more detail: http://ww... Mar 6 2008, 07:52 PM

Juramike Now also on the NASA Cassini-Huygens website: htt... Mar 6 2008, 07:56 PM

elakdawalla I'll have an article later but have to board a... Mar 6 2008, 08:03 PM

ugordan N1516373983_1.IMG appears to be by far the longest... Mar 6 2008, 08:20 PM

jasedm A couple of years is a long time to check and re-c... Mar 6 2008, 08:52 PM

djellison I'm reminded of : http://www.the-reel-mccoy.co... Mar 6 2008, 10:50 PM

elakdawalla Well, thanks to absolutely awful weather in Texas ... Mar 7 2008, 12:41 AM

nprev Great article, Emily! Sounds pretty strong ... Mar 7 2008, 01:36 AM

elakdawalla No, Dallas/Fort Worth. March is actually usually ... Mar 7 2008, 05:10 AM

tasp When the word 'ring' is used in regards to... Mar 7 2008, 05:28 AM

edstrick At an arm-waving speculative level.... As previou... Mar 7 2008, 08:09 AM

AndyG QUOTE (edstrick @ Mar 7 2008, 08:09 AM) A... Mar 7 2008, 10:35 AM

ngunn QUOTE (AndyG @ Mar 7 2008, 10:35 AM) Comm... Mar 7 2008, 01:21 PM

ugordan QUOTE (ngunn @ Mar 7 2008, 02:21 PM) How ... Mar 7 2008, 01:35 PM

Patteroast QUOTE (ugordan @ Mar 7 2008, 07:35 AM) ..... Mar 7 2008, 01:54 PM

Juramike QUOTE (Patteroast @ Mar 7 2008, 08:54 AM)... Mar 7 2008, 02:00 PM

nprev ...Gordan, you're killin' me! Almo... Mar 7 2008, 02:06 PM

ngunn QUOTE (nprev @ Mar 7 2008, 02:06 PM) How ... Mar 7 2008, 02:43 PM

ugordan Are there any ideas on the total mass in the putat... Mar 7 2008, 03:04 PM

IM4 QUOTE (ugordan @ Mar 7 2008, 03:04 PM) Ar... Mar 7 2008, 05:13 PM

ugordan I can't access that link, unfortunately. 1 par... Mar 7 2008, 05:24 PM

Juramike QUOTE (IM4 @ Mar 7 2008, 12:13 PM) ISS no... Mar 7 2008, 06:30 PM

charborob QUOTE (Juramike @ Mar 7 2008, 01:30 PM) S... Mar 7 2008, 07:06 PM

Gsnorgathon QUOTE (Juramike @ Mar 7 2008, 06:30 PM) T... Mar 7 2008, 08:07 PM

JRehling This is counterintuitive to me... If a noticeable... Mar 7 2008, 08:47 PM

djellison Where would metaphorical Lagrangian points be for ... Mar 7 2008, 03:02 PM

Greg Hullender For Rhea, L1, I get 5,810 km from the center of Rh... Mar 7 2008, 04:33 PM

MarcF Sorry, this might be stupid, but if the ring indee... Mar 7 2008, 07:47 PM

ugordan QUOTE (MarcF @ Mar 7 2008, 08:47 PM) A ch... Mar 7 2008, 07:49 PM

elakdawalla Hi all....way too tired after the trip cum toddler... Mar 8 2008, 05:31 AM

rlorenz QUOTE (elakdawalla @ Mar 8 2008, 12:31 AM... Mar 8 2008, 03:45 PM

zvezdan I have no problems with seeing with electrons. Bu... Mar 10 2008, 01:23 AM

tasp Thanks for posting the graph. Clearly something i... Mar 8 2008, 02:13 PM

elakdawalla QUOTE (tasp @ Mar 8 2008, 06:13 AM) Thank... Mar 8 2008, 08:09 PM

nprev Ah. So, it doesn't take very much material at ... Mar 8 2008, 04:05 PM

tasp Do we have any magnetospheric images of the Rhean... Mar 8 2008, 07:37 PM

tasp Yes, I covet having another instrument detect thi... Mar 9 2008, 01:21 AM

IM4 By the way, central ring period exactly equals the... Mar 9 2008, 10:16 AM

Elias Hi everyone, Just to make some more issues on the... Mar 9 2008, 03:49 PM

Greg Hullender Wow! Thanks a lot! So, to eliminate dou... Mar 9 2008, 04:54 PM

elakdawalla Cool, it didn't occur to me to check the PDS f... Mar 10 2008, 04:49 AM

Elias QUOTE (elakdawalla @ Mar 10 2008, 05:49 A... Mar 10 2008, 01:00 PM

ynyralmaen QUOTE (Elias @ Mar 10 2008, 01:00 PM) Not... Mar 10 2008, 02:03 PM

ilbasso Elias, looking at your description of fields aroun... Mar 10 2008, 02:12 PM

Rob Pinnegar QUOTE (ilbasso @ Mar 10 2008, 07:12 AM) I... Mar 12 2008, 02:03 AM

Elias Accurate definitions are always hard to achieve. I... Mar 10 2008, 03:39 PM

ynyralmaen If I may stick my oar in... I think at a minimum, ... Mar 10 2008, 03:49 PM

zvezdan Thanks Emily for the dates. There are indeed very ... Mar 11 2008, 12:49 AM

ynyralmaen QUOTE (zvezdan @ Mar 11 2008, 12:49 AM) T... Mar 11 2008, 09:07 AM

zvezdan QUOTE (ynyralmaen @ Mar 11 2008, 03:07 AM... Mar 11 2008, 06:44 PM

ynyralmaen Good point... yep, looks like it was just outside ... Mar 11 2008, 07:07 PM

zvezdan Tethys flyby geometry (Hill sphere radius is only ... Mar 11 2008, 12:59 AM

zvezdan And Dione flyby: Cassini went directly over the s... Mar 11 2008, 01:19 AM

tasp (My apologies if I didn't get the calculations... Mar 6 2009, 02:56 PM

ngunn QUOTE (tasp @ Mar 6 2009, 02:56 PM) Divyi... Mar 6 2009, 03:13 PM

jasedm QUOTE (tasp @ Mar 6 2009, 02:56 PM) Looks... Mar 6 2009, 08:34 PM

Rob Pinnegar QUOTE (tasp @ Mar 6 2009, 07:56 AM) Looks... Mar 7 2009, 01:07 AM

ngunn No. What started us up again was this nice CHARM p... Mar 6 2009, 08:53 PM

tasp Yeah, finding accurate numbers, and then being abl... Mar 7 2009, 03:52 AM

Rob Pinnegar QUOTE (tasp @ Mar 6 2009, 08:52 PM) If th... Mar 8 2009, 12:25 AM

ngunn Audio and transcript of the CHARM have now been po... Mar 9 2009, 01:19 PM

ugordan QUOTE (ngunn @ Mar 9 2009, 02:19 PM) Audi... Mar 9 2009, 01:38 PM

Floyd Ugordan--Way to spot something out of the ordinary... Mar 9 2009, 03:14 PM

jasedm I second Floyd's comment Gordan - very credita... Mar 9 2009, 04:21 PM

ugordan Floyd: wow, my first virtual Mars bar! jased... Mar 9 2009, 05:01 PM

remcook Rhea stellar occultation to look for the ring? (pl... Apr 28 2009, 02:30 PM

ugordan If it were a stellar occultation, they'd want ... Apr 28 2009, 02:37 PM

jasedm QUOTE (ugordan @ Apr 28 2009, 03:37 PM) S... Jul 11 2009, 05:00 PM

ugordan Unfortunately, if the rings are comprised of bould... Jul 11 2009, 05:19 PM

Rob Pinnegar QUOTE (ugordan @ Jul 11 2009, 11:19 AM) I... Jul 12 2009, 06:02 PM

ugordan Coincidentally, Anne Verbiscer wrote about the ecl... Jul 12 2009, 06:10 PM

remcook good point. But who knows, that star might turn ou... Apr 28 2009, 02:40 PM

tasp IIRC, as an object darkens in visible light, it br... Jul 11 2009, 11:45 PM

jasedm Thanks for the responses - it does appear that rem... Jul 13 2009, 08:44 AM

Drkskywxlt http://news.sciencemag.org/sciencenow/2010...never... Jul 1 2010, 07:18 PM

Hungry4info I know it sounds silly, but could a Rhean magnetic... Jul 7 2010, 03:15 AM

nprev Doubt it. My bet is that there's a low-yield g... Jul 7 2010, 03:44 AM

Hungry4info Would that explain the observed symmetrical struct... Jul 7 2010, 03:48 AM

nprev Hmm. I don't know. Why would a magnetic field ... Jul 7 2010, 04:09 AM

tedstryk QUOTE (nprev @ Jul 7 2010, 05:09 AM) but ... Jul 12 2010, 11:24 PM

Hungry4info I don't really think a magnetic field sufficie... Jul 7 2010, 04:19 AM

nprev Me neither! Looking forward to what the p... Jul 7 2010, 05:10 AM

tasp {not claiming to be a pro, just a coincidence this... Jul 7 2010, 06:22 AM

Antdoghalo young fracture on Rhea There's no visible crat... Jul 12 2010, 04:14 PM

nprev Ah- didn't know that. Thanks, Ted! It was ... Jul 12 2010, 11:50 PM

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