Jupiter Impact 2009 |
Jupiter Impact 2009 |
 Jul 19 2009, 08:13 PM
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 The Poet Dude  Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60  |
Very interesting observation of a dark mark on Jupiter... it's starting to ripple out across Twitter...
http://www.irishastronomy.org/cms/forum?fu...;id=79644#79647 More info: http://www.acquerra.com.au/astro/ObsReport...ter-impact.html -------------------- |
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Jul 21 2009, 08:39 PM
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#2
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 Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Obviously, the quick comment that can be answered here (meaning not kooky), the impact scar is the ~ the size of Earth, NOT the impactor. Somehow there is some confusion about that among the commenters. The impactor was at best 1-2 km across, a faint object to observe from that distance. Not impossible by any means, we have observed outer moons of Jupiter that small, but we have no indication at this point that the impactor went through a period were it was temporarily captured by Jupiter, like SL9.
I think a lot of people in the general public extrapolate the fact that we have found nearly all the earth-orbit crossing asteroids of that size to mean that we have found all the objects in the Solar system of that size. That maybe another source of confusion. -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Jul 21 2009, 09:25 PM
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#3
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 Member Group: Members Posts: 813 Joined: 8-February 04 From: Arabia Terra Member No.: 12 |
Interestingly, there was a paper published in 1997 which said that the mean interval between impacts of comets >0.3km on Jupiter is on the order of 500 years. I guess the real figure might be a lot less than that.
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Jul 21 2009, 09:39 PM
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#4
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 Interplanetary Dumpster Diver Group: Admin Posts: 4405 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
QUOTE (SFJCody @ Jul 21 2009, 09:25 PM)  Interestingly, there was a paper published in 1997 which said that the mean interval between impacts of comets >0.3km on Jupiter is on the order of 500 years. I guess the real figure might be a lot less than that. Some put the size of she SL/9 parent body at 1-3 km. Given that many of the fragments made bigger marks than this, it is quite possible that this object is significantly smaller than .3 km. -------------------- |
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Stu Jupiter Impact 2009 Jul 19 2009, 08:13 PM
ugordan Precisely 15 years after Shoemaker-Levy 9 barrage.... Jul 19 2009, 08:23 PM
SFJCody QUOTE (ugordan @ Jul 19 2009, 09:23 PM) I... Jul 19 2009, 08:36 PM dvandorn I daresay it wasn't a cometary impact, as a co... Jul 19 2009, 08:26 PM Floyd Now picked up by astronomy. Jul 19 2009, 08:48 PM tasp Maybe we are getting another Venus ?? Jul 19 2009, 09:48 PM nprev Interesting! It does look quite a bit like one... Jul 19 2009, 09:59 PM volcanopele Very cool. Given how much Jupiter eats comets and... Jul 19 2009, 11:06 PM john_s I started my own topic, but then nprev pointed out... Jul 20 2009, 02:42 AM nprev QUOTE (john_s @ Jul 19 2009, 06:42 PM) ..... Jul 20 2009, 03:02 AM tedstryk They have already done one science observation (a ... Jul 20 2009, 04:57 AM volcanopele No problem. This topic belongs in the Telescope O... Jul 20 2009, 02:50 AM Sunspot QUOTE (Stu @ Jul 19 2009, 09:13 PM) Very ... Jul 20 2009, 07:38 AM Stu Universe Today... Bad Astronomer... sites like tha... Jul 20 2009, 07:52 AM djellison I'm wondering if the fact that Hubble is still... Jul 20 2009, 08:15 AM SFJCody I think the forum might enjoy this, one of my favo... Jul 20 2009, 08:19 AM Stu Some more pix here...
http://jupiter.samba.org/ju... Jul 20 2009, 08:32 AM volcanopele Yeah, some of those other images have really convi... Jul 20 2009, 09:02 AM 4th rock from the sun Hi,
A nice place to check for updated daily plane... Jul 20 2009, 09:14 AM Stu QUOTE (4th rock from the sun @ Jul 20 2009, 1... Jul 20 2009, 10:00 AM 4th rock from the sun Yes, the ALPO Japan Planetary Section it's ful... Jul 20 2009, 10:23 AM Sunspot I've often wondered why we see so few planetar... Jul 20 2009, 10:20 AM Stu From Twitter: "Glenn Orton from JPL is imagin... Jul 20 2009, 11:51 AM Sunspot can you give me the link the the twitter sites you... Jul 20 2009, 12:40 PM Hungry4info Die! Die! Watch them die!
QUOTE (... Jul 20 2009, 12:44 PM ElkGroveDan Too bad it wasn't Saturn. Jul 20 2009, 07:58 PM Decepticon RE: Jupiter Impact 2009 Jul 20 2009, 08:08 PM Phil Stooke EGD: "Too bad it wasn't Saturn. "
... Jul 20 2009, 08:19 PM Stu Interesting Twitter site to follow re this story..... Jul 20 2009, 08:26 PM ugordan Would we be able to measure the temperatue and cro... Jul 20 2009, 08:40 PM tedstryk Yes, but Cassini would undoubtedly serendipitously... Jul 20 2009, 08:59 PM ugordan QUOTE (tedstryk @ Jul 20 2009, 10:59 PM) ... Jul 20 2009, 09:08 PM PFK QUOTE (ugordan @ Jul 20 2009, 09:40 PM) 1... Jul 23 2009, 11:33 AM tedstryk http://archive.stsci.edu/proposal_search.p...st... Jul 24 2009, 12:11 AM Sunspot QUOTE (tedstryk @ Jul 24 2009, 01:11 AM) ... Jul 24 2009, 07:17 AM Sunspot QUOTE (Stu @ Jul 20 2009, 09:26 PM) Inter... Jul 20 2009, 10:59 PM nprev Re Saturn vs. Jupiter impacts: Another thing to re... Jul 20 2009, 09:35 PM Floyd JPL new release In part:
Scientists have found ev... Jul 20 2009, 11:10 PM ugordan It would have been nice if they actually mentioned... Jul 20 2009, 11:20 PM Sunspot QUOTE (ugordan @ Jul 21 2009, 12:20 AM) I... Jul 20 2009, 11:24 PM tedstryk It may be that the public relations office nazis a... Jul 20 2009, 11:32 PM ugordan Someone should email them about that, to be honest... Jul 20 2009, 11:32 PM ynyralmaen QUOTE (ugordan @ Jul 21 2009, 12:32 AM) W... Jul 21 2009, 06:33 AM volcanopele http://photojournal.jpl.nasa.gov/catalog/PIA12148 Jul 20 2009, 11:16 PM nprev Agreed.
Again, I find it hard to even describe... Jul 20 2009, 11:31 PM Sunspot There is contact info at the bottom of the press r... Jul 20 2009, 11:32 PM Floyd I just e-mailed her Jul 20 2009, 11:34 PM nprev Thanks, Sunspot. I just left her a very polite voi... Jul 20 2009, 11:37 PM stevesliva Just name the deceased impactor after him. Heck,... Jul 20 2009, 11:38 PM nprev QUOTE (stevesliva @ Jul 20 2009, 04:38 PM... Jul 20 2009, 11:43 PM Sunspot http://www.newscientist.com/article/dn1749...rom-i... Jul 20 2009, 11:41 PM ugordan Wow, the Keck image really shows some interesting ... Jul 20 2009, 11:47 PM john_s QUOTE (ugordan @ Jul 20 2009, 11:47 PM) W... Jul 21 2009, 02:23 AM nprev Yes, it does indeed, Gordan!
VERY interesting... Jul 20 2009, 11:54 PM Floyd Just received the following:
Hi Floyd,
We were ru... Jul 21 2009, 12:03 AM nprev Well done, Floyd!!!!! Jul 21 2009, 12:04 AM rogelio Why not honor the discoverer by referring to this ... Jul 21 2009, 12:42 AM nprev Problem is that it's extremely transient, Roge... Jul 21 2009, 12:47 AM nprev Hmm. I see what you mean, John. If this is the cau... Jul 21 2009, 03:18 AM Pertinax Saw a mention of this on SpaceWeather this morning... Jul 21 2009, 03:58 AM dtolman This has been picked up on the NY Times breaking n... Jul 21 2009, 03:21 PM SFJCody QUOTE (dtolman @ Jul 21 2009, 04:21 PM) F... Jul 21 2009, 03:59 PM imipak QUOTE (dtolman @ Jul 21 2009, 04:21 PM) .... Jul 21 2009, 08:03 PM Mongo Will it be possible to determine the bulk nature o... Jul 21 2009, 09:23 PM volcanopele Wasn't that based on two data points, Shoemake... Jul 21 2009, 09:38 PM SFJCody QUOTE (volcanopele @ Jul 21 2009, 10:38 P... Jul 21 2009, 09:51 PM Juramike Here's a paper putting the impact rate of 2 km... Jul 21 2009, 11:43 PM 4th rock from the sun QUOTE (Juramike @ Jul 22 2009, 12:43 AM) ... Jul 22 2009, 09:19 AM Juramike QUOTE (4th rock from the sun @ Jul 22 2009, 0... Jul 22 2009, 02:21 PM 4th rock from the sun Regarding lesser known amateur planetary observati... Jul 22 2009, 03:03 PM tedstryk To be fair, given the bright background and having... Jul 22 2009, 04:26 PM ugordan QUOTE (tedstryk @ Jul 22 2009, 06:26 PM) ... Jul 22 2009, 04:29 PM dvandorn It occurs to me that the most massive objects in t... Jul 22 2009, 01:03 AM djellison Two points - one is the "Friend or Foe" ... Jul 22 2009, 07:30 AM nprev QUOTE (djellison @ Jul 22 2009, 12:30 AM)... Jul 22 2009, 12:29 PM Sunspot Hubble will be observing the spot in the next coup... Jul 22 2009, 08:25 AM djellison Also shows how damn good the amateurs have got usi... Jul 22 2009, 09:03 AM nprev Is that a restricted-access page, Ted? I get nothi... Jul 24 2009, 12:32 AM tedstryk It did that for me on the first few tries.
BTW, G... Jul 24 2009, 12:45 AM Hungry4info Definitely looking forward to this first example o... Jul 24 2009, 11:26 AM Sunspot QUOTE (Hungry4info @ Jul 24 2009, 12:26 P... Jul 24 2009, 12:12 PM tedstryk They repaired the ACS HRC, but it is much more com... Jul 24 2009, 01:45 PM Hungry4info QUOTE (tedstryk @ Jul 24 2009, 07:45 AM) ... Jul 24 2009, 02:11 PM tedstryk OK, I see that now, I didn't realize the HRC h... Jul 24 2009, 02:42 PM nprev Good SpaceflightNow article re yesterday's Hub... Jul 24 2009, 05:07 PM stevesliva Yup! http://hubblesite.org/newscenter/archive/... Jul 24 2009, 07:10 PM nprev YESSSSS!!!
Wow. Obviously these are... Jul 24 2009, 07:22 PM PDP8E Man, I love the Hubble! That picture is incred... Jul 24 2009, 07:34 PM lyford Sweet Fancy Moses!!!!! Jul 24 2009, 07:40 PM ugordan Also, Surprise Collision on Jupiter Captured by Ge... Jul 24 2009, 09:05 PM ElkGroveDan That downrange disturbance almost looks like the m... Jul 24 2009, 10:26 PM nprev You know, if we keep seeing these things happen on... Jul 24 2009, 10:33 PM Stu QUOTE (nprev @ Jul 24 2009, 11:33 PM) we... Jul 24 2009, 11:30 PM Sunspot I sharpened the BW image slightly... this new came... Jul 24 2009, 10:52 PM nprev Just don't put ME in charge of that...doubt th... Jul 24 2009, 11:57 PM dvandorn I think in the case of impacts onto gas giants, th... Jul 25 2009, 12:27 AM nprev Yeah, I was thinking about "astrobleme" ... Jul 25 2009, 12:44 AM |
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