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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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machi
post Feb 3 2010, 07:28 PM
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QUOTE (Hungry4info @ Feb 3 2010, 07:49 PM) *
Are you sure? Comparing the images of Jupiter from WFPC2 and 3, it sure looked a whole lot more detailed.


Yes, but Pluto images were taken by FOC camera. But I looked at pixel sizes in Emily's article and ACS HRC is quite comparable to FOC in term of resolution and spectral range. Now I don't know precisely resolution of original FOC images of Pluto, but when I say ~0.25 arcsec, it's very close to it (FOC pixel size was 0.014 arcsec and original images was taken at wavelength 278 nm). ACS HRC has 0.028 x 0.025 arcsec pixel size and UV capability, so images with approximately same resolution and better contrast are possible.


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tedstryk
post Feb 3 2010, 07:31 PM
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The ACS HRC had a far, far superior signal to noise ration compared to the FOC. Also, the observations it made use dithering to improve resolution, a technique also used with Triton.


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Posts in this topic
- 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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