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New Pluto images discussed
elakdawalla
post Feb 3 2010, 06:59 PM
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Here is a comparison of Hubble camera FOV and pixel sizes, but it doesn't take into account things like point spread and SNR.


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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, 07:29 PM
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I just saved this link a while back, but it is clearly a blurred version of the right hand inset in this image.

http://hubblesite.org/newscenter/archive/r...rmat/small_web/


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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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Stu
post Feb 4 2010, 05:41 PM
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Here's a link to the site covering the teleconference...

http://www.nasa.gov/news/media/newsaudio/index.html



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ElkGroveDan
post Feb 4 2010, 05:45 PM
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Does anyone know if there is a companion page where we might observe images, charts etc?


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Stu
post Feb 4 2010, 05:48 PM
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Haven't found one yet... maybe a link will pop up on the audio page at the start of the tc...


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elakdawalla
post Feb 4 2010, 05:58 PM
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They usually give the link when the conference starts. Alan Boyle just tweeted this link.


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Stu
post Feb 4 2010, 06:04 PM
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Pix... http://hubblesite.org/newscenter/archive/releases/2010/06


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ElkGroveDan
post Feb 4 2010, 06:04 PM
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Wow! Got the video - nice!


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elakdawalla
post Feb 4 2010, 06:09 PM
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I think I'm going to ask what the magnitude of the albedo change was (assuming maps are stretched) -- anybody got any other question suggestions?


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ElkGroveDan
post Feb 4 2010, 06:26 PM
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Ask if they were able to also make observations of Charon and/or its color? Could similar processes be taking place there as well?

EDIT: every time I think of a question he answers it


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MahFL
post Feb 4 2010, 06:31 PM
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Wow he noticed the colour change in 2002 and is only telling it now ?
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MahFL
post Feb 4 2010, 06:40 PM
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She just asked the question.
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Stu
post Feb 4 2010, 06:42 PM
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He already explained he doubted what he saw and had to be v v sure it was real. Would you rather people just announced things like this before they were sure and ended up looking stoopid? Sheesh. A HUGE discovery, Pluto unveiled, at last, we've all got front row seats, and you're not happy? rolleyes.gif


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