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New Pluto images discussed
ngunn
post Feb 2 2010, 10:23 AM
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Telecon announcement (via Jupiter List - thanks)
http://tech.groups.yahoo.com/group/jupiter_list/message/8170
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tasp
post Feb 9 2010, 12:53 AM
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Heating of the surface will certainly be a complex topic (if 'heating' is the right word for discussing objects colder than liquid nitrogen). I have noted around here, that despite the biting winter cold, the ground remains essentially unfrozen beneath the snow drifts, and yet exposed soil is frozen solid to at least 3 feet. So to the texture and 'fluff' if you will on Pluto will factor into the penetration of the cold, or rather, the 'shallowness' of the heat (if any) dissipating from the Plutonian core. I have no idea what the 'R' values of methane snow vs. block methane ice is (or any other likely surface deposits) but the surface colors and the surface textures there will be sigificant variables. Earthly glaciers seem to compactify the snow into ice at relatively shallow depths, but the low grav on Pluto might allow even very slowly accumulating 'snows' to achieve considerable depth (and 'R' value) to occur. But then you would have something potentially quite interesting if the bottom layer flashed to vapor . . .

I am picturing almost ethereal geysers wafting from gossamer drifts, or dunes. The Tritonian analogy might be quite apt.
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- ngunn   New Pluto images discussed   Feb 2 2010, 10:23 AM
- - tedstryk   This is going to be awesome. That's all I...   Feb 2 2010, 02:51 PM
|- - Webscientist   Signs of cryovolcanic activities?   Feb 2 2010, 05:15 PM
- - ElkGroveDan   Discovery of multiple bodies and/or rings?   Feb 2 2010, 06:27 PM
|- - ugordan   I'm starting to really hate this teasing and h...   Feb 2 2010, 06:41 PM
|- - NickF   Penguins?   Feb 2 2010, 07:22 PM
- - Hungry4info   We're told that the HST images will help bette...   Feb 2 2010, 07:51 PM
- - ngunn   You echo my own thoughts exactly there H4I (about ...   Feb 2 2010, 08:01 PM
- - Hungry4info   The dark spots on Pluto were found by watching mut...   Feb 2 2010, 08:02 PM
- - ngunn   Maybe it's those lightcurves that are now in n...   Feb 2 2010, 08:47 PM
- - NGC3314   Odd - the HST archive search doesn't show any ...   Feb 2 2010, 09:01 PM
|- - Hungry4info   QUOTE (NGC3314 @ Feb 2 2010, 03:01 PM) Ma...   Feb 2 2010, 10:04 PM
|- - ngunn   QUOTE (NGC3314 @ Feb 2 2010, 09:01 PM) Un...   Feb 2 2010, 10:13 PM
|- - stevesliva   QUOTE (ngunn @ Feb 2 2010, 06:13 PM) Does...   Feb 2 2010, 10:17 PM
- - alan   I see Mike Brown is involved, my guess: On close ...   Feb 2 2010, 10:08 PM
- - stevesliva   Searched sci.astro.hubble for "Kuiper." ...   Feb 2 2010, 10:25 PM
- - Hungry4info   That, almost certainly, is what this is about.   Feb 2 2010, 10:27 PM
- - ElkGroveDan   I get the feeling that rather than some kind of nu...   Feb 2 2010, 10:49 PM
- - ngunn   Well done stevesliva! (Now, what's going o...   Feb 2 2010, 10:52 PM
- - volcanopele   If the dates covered in that post are the dates th...   Feb 3 2010, 12:05 AM
|- - stevesliva   QUOTE (volcanopele @ Feb 2 2010, 08:05 PM...   Feb 3 2010, 01:07 AM
- - NGC3314   The archive lists 472 observations to date on prog...   Feb 3 2010, 02:22 AM
- - Hungry4info   Doing a little research, I find that HST has alrea...   Feb 3 2010, 01:22 PM
- - ElkGroveDan   Dark spots indeed. As we are a day away still, I...   Feb 3 2010, 02:15 PM
- - Hungry4info   This image has my vote for "the best so far....   Feb 3 2010, 02:39 PM
|- - tedstryk   Here is a more natural take on one of the 1996 ima...   Feb 3 2010, 05:36 PM
|- - tedstryk   I just saved this link a while back, but it is cle...   Feb 3 2010, 07:29 PM
- - elakdawalla   Ted and Hungry4info, what are the sources of those...   Feb 3 2010, 05:48 PM
- - Hungry4info   Ted's is HST (And was posted by ElkGroveDan as...   Feb 3 2010, 05:55 PM
- - machi   QUOTE (ElkGroveDan @ Feb 3 2010, 03:15 PM...   Feb 3 2010, 06:47 PM
- - Hungry4info   Are you sure? Comparing the images of Jupiter from...   Feb 3 2010, 06:49 PM
- - elakdawalla   Here is a comparison of Hubble camera FOV and pixe...   Feb 3 2010, 06:59 PM
- - machi   QUOTE (Hungry4info @ Feb 3 2010, 07:49 PM...   Feb 3 2010, 07:28 PM
|- - tedstryk   The ACS HRC had a far, far superior signal to nois...   Feb 3 2010, 07:31 PM
- - Stu   Here's a link to the site covering the telecon...   Feb 4 2010, 05:41 PM
- - ElkGroveDan   Does anyone know if there is a companion page wher...   Feb 4 2010, 05:45 PM
- - Stu   Haven't found one yet... maybe a link will pop...   Feb 4 2010, 05:48 PM
- - elakdawalla   They usually give the link when the conference sta...   Feb 4 2010, 05:58 PM
- - Stu   Pix... http://hubblesite.org/newscenter/archive/re...   Feb 4 2010, 06:04 PM
- - ElkGroveDan   Wow! Got the video - nice!   Feb 4 2010, 06:04 PM
- - elakdawalla   I think I'm going to ask what the magnitude of...   Feb 4 2010, 06:09 PM
- - ElkGroveDan   Ask if they were able to also make observations of...   Feb 4 2010, 06:26 PM
|- - MahFL   Wow he noticed the colour change in 2002 and is on...   Feb 4 2010, 06:31 PM
|- - MahFL   She just asked the question.   Feb 4 2010, 06:40 PM
|- - MahFL   Lots of unknowns..........   Feb 4 2010, 06:43 PM
- - Stu   He already explained he doubted what he saw and ha...   Feb 4 2010, 06:42 PM
|- - AndyG   QUOTE (Stu @ Feb 4 2010, 06:42 PM) A HUGE...   Feb 5 2010, 05:33 PM
- - stevesliva   QUOTE The Hubble images are a few pixels wide. But...   Feb 4 2010, 06:44 PM
- - elakdawalla   Yes, Pluto is the closest of the big ones and the ...   Feb 4 2010, 06:51 PM
- - volcanopele   I added the new map to my copy of Celestia, and he...   Feb 4 2010, 10:15 PM
- - Astro0   The surfaces changes between 1994 and 2002-03 are ...   Feb 4 2010, 10:37 PM
- - ngunn   It would be nice to add into that animation the ea...   Feb 4 2010, 10:42 PM
- - Ian R   Here's a fascinating "behind the scenes...   Feb 4 2010, 10:46 PM
|- - tedstryk   Marc Buie has posted the full paper, including the...   Feb 5 2010, 04:28 AM
- - Stu   http://www.dailymail.co.uk/sciencetech/art...arf-p...   Feb 5 2010, 12:57 PM
|- - Hungry4info   QUOTE (Stu @ Feb 5 2010, 06:57 AM) Pluto ...   Feb 5 2010, 03:17 PM
||- - tedstryk   About 70 days out.   Feb 5 2010, 03:28 PM
||- - tasp   QUOTE (tedstryk @ Feb 5 2010, 09:28 AM) A...   Feb 5 2010, 05:50 PM
|- - Greg Hullender   QUOTE (Stu @ Feb 5 2010, 04:57 AM) http:/...   Feb 6 2010, 04:39 AM
|- - tedstryk   Also, there was a set taken with WF/PC2 and NICMOS...   Feb 6 2010, 06:02 AM
- - Julius   Any plans for viewing Pluto between now and pluto ...   Feb 5 2010, 01:21 PM
|- - tedstryk   Yes - it says so in the press release, last senten...   Feb 5 2010, 01:57 PM
- - ngunn   Anybody know at what range and how long before clo...   Feb 5 2010, 03:11 PM
- - ngunn   Thanks. (I think I heard Mike say that future Hubb...   Feb 5 2010, 03:48 PM
|- - tedstryk   They will likely be somewhat poorer in spatial res...   Feb 5 2010, 05:07 PM
- - elakdawalla   I think Buie mentioned during the briefing that it...   Feb 6 2010, 04:09 PM
|- - tedstryk   Quoting the abstract for the WFC3 observations, ...   Feb 7 2010, 12:19 AM
|- - tedstryk   It is worth noting that there was some darkening o...   Feb 7 2010, 12:30 AM
- - nprev   Guess the big question here is whether we're s...   Feb 7 2010, 05:27 AM
|- - Webscientist   Why are the presumed deposits so globally asymmetr...   Feb 7 2010, 08:48 AM
- - hendric   I think the slightest albedo difference would tend...   Feb 7 2010, 05:44 AM
|- - ngunn   QUOTE (hendric @ Feb 7 2010, 05:44 AM) I ...   Feb 7 2010, 08:04 AM
|- - AndyG   QUOTE (hendric @ Feb 7 2010, 05:44 AM) .....   Feb 7 2010, 09:54 PM
|- - ugordan   QUOTE (AndyG @ Feb 7 2010, 10:54 PM) All ...   Feb 7 2010, 09:59 PM
|- - AndyG   QUOTE (ugordan @ Feb 7 2010, 09:59 PM) Da...   Feb 8 2010, 11:55 PM
- - nprev   Ah! Yes, true; interesting how such a recent d...   Feb 7 2010, 05:53 AM
- - Phil Stooke   Charon and Pluto are tidally locked. Regarding ...   Feb 7 2010, 01:19 PM
|- - tedstryk   Yes, although Triton has much more subdued albedo ...   Feb 7 2010, 01:24 PM
|- - Juramike   QUOTE (Phil Stooke @ Feb 7 2010, 08:19 AM...   Feb 7 2010, 03:01 PM
- - Julius   I wouldnt be surprised if Pluto has geysers like T...   Feb 7 2010, 02:08 PM
- - Hungry4info   With as close as Pluto and Charon are, I would pre...   Feb 7 2010, 07:12 PM
- - nprev   Re residual tidal energy dissipation: That's a...   Feb 7 2010, 08:06 PM
- - Fran Ontanaya   I guess the mass displaced by the seasonal changes...   Feb 8 2010, 01:20 AM
|- - Mixer   Has anybody got a link to listen to the audio of t...   Feb 8 2010, 02:46 AM
- - hendric   Where is the sub-Charon point on the map? My gues...   Feb 8 2010, 03:34 AM
- - volcanopele   Anti-Charon hemisphere...   Feb 8 2010, 04:03 AM
- - imipak   QUOTE (ugordan @ Feb 7 2010, 09:59 PM) Da...   Feb 8 2010, 09:48 PM
- - nprev   All these comments certainly illuminate the potent...   Feb 9 2010, 12:19 AM
- - tasp   Heating of the surface will certainly be a complex...   Feb 9 2010, 12:53 AM
- - remcook   "Well, not during the three+ days of darkness...   Feb 9 2010, 07:40 AM
- - JohnVV   just something i have been working on while taking...   Feb 12 2010, 08:25 AM
- - imipak   Terrestrial climatology's a banned topic here;...   Feb 13 2010, 07:48 PM
|- - Juramike   QUOTE (imipak @ Feb 13 2010, 02:48 PM) Do...   Feb 20 2010, 02:22 PM
- - PhilCo126   I'm trying to get an idea of Pluto's ...   Feb 20 2010, 11:01 AM
|- - djellison   QUOTE (PhilCo126 @ Feb 20 2010, 11:01 AM)...   Feb 20 2010, 04:02 PM
- - JohnVV   "surely there's no "yellow" in ...   Feb 20 2010, 06:21 PM
- - Lunik9   Most NASA artist's impressions show a red-colo...   Sep 20 2010, 03:59 PM


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