New Pluto images discussed |
New Pluto images discussed |
Feb 3 2010, 06:59 PM
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#31
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
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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Feb 3 2010, 07:28 PM
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#32
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
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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Feb 3 2010, 07:29 PM
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#33
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
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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Feb 3 2010, 07:31 PM
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#34
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
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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Feb 4 2010, 05:41 PM
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#35
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Here's a link to the site covering the teleconference...
http://www.nasa.gov/news/media/newsaudio/index.html -------------------- |
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Feb 4 2010, 05:45 PM
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#36
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
Does anyone know if there is a companion page where we might observe images, charts etc?
-------------------- If Occam had heard my theory, things would be very different now.
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Feb 4 2010, 05:48 PM
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#37
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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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Feb 4 2010, 05:58 PM
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#38
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
They usually give the link when the conference starts. Alan Boyle just tweeted this link.
-------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Feb 4 2010, 06:04 PM
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#39
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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Feb 4 2010, 06:04 PM
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#40
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
Wow! Got the video - nice!
-------------------- If Occam had heard my theory, things would be very different now.
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Feb 4 2010, 06:09 PM
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#41
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
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?
-------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Feb 4 2010, 06:26 PM
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#42
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
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 -------------------- If Occam had heard my theory, things would be very different now.
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Feb 4 2010, 06:31 PM
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#43
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
Wow he noticed the colour change in 2002 and is only telling it now ?
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Feb 4 2010, 06:40 PM
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#44
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
She just asked the question.
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Feb 4 2010, 06:42 PM
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#45
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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?
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