kuiper belt map?, does it exist? |
kuiper belt map?, does it exist? |
Dec 17 2009, 03:22 PM
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#16
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
WISE can't detect objects as cold as any of the known Kuiper belt objects. It couldn't detect another Earth if such existed within the Kuiper belt, as an Earth would only be 35 K out there. Read starting from "Moving on to the brown dwarf detections..." in my blog entry on the mission.
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Dec 17 2009, 03:58 PM
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#17
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Senior Member Group: Members Posts: 1887 Joined: 20-November 04 From: Iowa Member No.: 110 |
The papers I've seen discussing Spitzer Space Telescope observations have calculated temperatures for kuiper belt objects of above 50K, still too cold for WISE. WISE may be able to detect some centaurs out to about 15 AU, Chiron for example, was 98K at 13 AU.
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Dec 18 2009, 12:37 AM
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#18
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Junior Member Group: Members Posts: 60 Joined: 3-January 09 Member No.: 4520 |
cassioli, did you read Brown's whole article around that? He makes some great points about how that style depiction of the solar system isn't helpful.
And he provides his own depiction, to boot. |
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Guest_cassioli_* |
Dec 18 2009, 08:45 AM
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#19
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Guests |
Full inline quote removed - ADMIN
yes, indeed I was asking for a solar system poster based on his layout. But being not able to find it, I'm going to create it by myself. |
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Guest_cassioli_* |
Dec 19 2009, 11:02 PM
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#20
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Guests |
This is my "work in progress" solar system:
http://img190.imageshack.us/img190/2881/sistemasolare.jpg Any suggestion? I'd like to add some boxes with details about minor bodies. Maybe I could add major moons of each planet. Text will be clearly visibile in hi-res version (even smallest one). |
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Dec 20 2009, 02:18 AM
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#21
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Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
I like the approach - it is very effective at conveying a sense of the relative scale of the various important bodies in the system.
I'd make a couple of suggestions: Use a solar image of just a fraction of the solar limb as a backdrop, but keep it to the same scale so it is almost a vertical slice to convey just how huge the sun is and keep a solar prominence in the frame, that works very nicely IMO. I'd also prefer to see a presentation that kept the body sequence intact in terms of overlay position - I think the presentation would be better with Uranus, Neptune, Pluto, Eris, Haumea, Makemake clearly positioned "behind" Saturn and the order of the inner planets showing Mercury\Venus\Earth\Mars in that sequence from foreground to background. Also I'd broaden the spatial part of the chart that shows the absolute range from Sol out to the Kuiper belt bodies so that it covers the entire width of the image - the basic idea is excellent though as it fills in the missing impression of distance that the to-scale primary images cannot convey. They are just opinions though - I really do like this approach, excellent work. One final thing - if you can apply some anti-aliasing to the images it would make the full resolution version look _much_ better. |
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Dec 20 2009, 02:42 AM
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#22
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Junior Member Group: Members Posts: 60 Joined: 3-January 09 Member No.: 4520 |
Something to think about is whether you're presenting an image of each planet that's close to what a human might see. For example, Venus looks like more of a cream-colored cue ball in the visible spectrum. You've got a simulated view of what Venus might look like without an atmosphere.
Similarly, Neptune's a bit more dusky-gray. And no one has any idea what the surfaces of Pluto, Eris, Haumea, etc look like, really. All we really have are colored dots (except for Pluto, which has a tiny map, and Haumea, which we know the shape of, roughly). Those are artists' impressions. I think there is a whole thread about this on UMSF. |
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Guest_cassioli_* |
Dec 21 2009, 07:43 PM
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#23
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Guests |
One final thing - if you can apply some anti-aliasing to the images it would make the full resolution version look _much_ better. I cam't understand why my graphic program keep cuting circles in such an imprecise way: the size of each of those "pixels" is actually some dozens of pixels!!! |
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Guest_cassioli_* |
Dec 21 2009, 09:14 PM
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#24
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Guests |
can anybody please suggest a goog&free graphic program to help me completing this poster?
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Dec 21 2009, 09:33 PM
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#25
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Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
A really (really!) good place to start would be to head over to the Planetary Society and Emily's excellent space imagery tutorials..
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