"surprise discovery" in the outer Solar System |
"surprise discovery" in the outer Solar System |
Mar 26 2014, 06:18 AM
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#16
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
from the buzz over twitter, I think I will monitor asteroid Chariklo today
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Mar 26 2014, 06:36 AM
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#17
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
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Mar 26 2014, 06:50 AM
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#18
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
So, no chance a wily research group added then deleted a red herring post to wiki?
Still, the polite thing would be to act surprised. |
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Mar 26 2014, 07:58 AM
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#19
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Rover Driver Group: Members Posts: 1015 Joined: 4-March 04 Member No.: 47 |
These people do stellar occultations, so I'm thinking..TNO with atmosphere?
edit - ah I'm apparently not up to date with the rumours |
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Mar 26 2014, 02:07 PM
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#20
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
It looks that we can expect two big discoveries from the outer solar system!
One is from the ESO and one from the Carnegie Institution. -------------------- |
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Mar 26 2014, 02:49 PM
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#21
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Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
<taps foot impatiently>…<waits for OFFICIAL press releases>…<will zap any rumors or unofficial releases>...
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Mar 26 2014, 04:17 PM
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#22
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Well, the embargo has officially broken on one of the discoveries: A second Sedna! Here's the MPEC.
This is a big deal for people who care about the formation and evolution of the solar system. I am really terrible at understanding and visualizing orbits. I would love to have a diagram showing the orbits of Neptune, Pluto, Eris, Sedna, and 2012 VP113. I am going to go try to make it myself, but if someone beats me to it, well, I wouldn't be sad -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Mar 26 2014, 04:24 PM
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#23
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Senior Member Group: Members Posts: 2082 Joined: 13-February 10 From: Ontario Member No.: 5221 |
Here's an article about this second one:
http://www.astrobio.net/components/com_new...ail.php?id=6082 QUOTE New work from Carnegie’s Scott Sheppard and Chadwick Trujillo of the Gemini Observatory reports the discovery of a distant dwarf planet, called 2012 VP113, which was found beyond the known edge of the solar system. This is likely one of thousands of distant objects that are thought to form the so-called inner Oort cloud. What’s more, their work indicates the potential presence of an enormous planet, perhaps up to 10 times the size of Earth, not yet seen, but possibly influencing the orbit of 2012 VP113, as well as other inner Oort cloud objects. Yikes! That would make this other embargoed discovery tame by comparison! |
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Mar 26 2014, 04:46 PM
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#24
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Solar System Cartographer Group: Members Posts: 10151 Joined: 5-April 05 From: Canada Member No.: 227 |
Nooooooo! Surely a planet that big would have been found already in IR, and its gravity would have been obvious for decades. There can't be anything that big out there.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Mar 26 2014, 04:54 PM
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#25
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
The news is online, if you want to search around. It is rather surprising.
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Mar 26 2014, 04:55 PM
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#26
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Nooooooo! Surely a planet that big would have been found already in IR, and its gravity would have been obvious for decades. There can't be anything that big out there. Phil Not at all. WISE has eliminated things bigger than Saturn, but there's plenty of room for a Neptune or smaller; and it's (as far as I'm concerned) always been the most parsimonious explanation for the presence of Sedna. But the other options are still in play, I think (passing star, cluster star birth, etc). I need to talk to Hal Levison. -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Mar 26 2014, 04:57 PM
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#27
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Junior Member Group: Members Posts: 24 Joined: 11-February 07 From: College Station, TX Member No.: 1709 |
Emily,
Have you tried the JPL small-body database browser? http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2012...log=0;cad=0#orb It's a little hard to zoom out properly, but if you're happy with showing most of the orbit, this could be good enough for now... I've attached a screenshot. |
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Mar 26 2014, 05:09 PM
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#28
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Senior Member Group: Members Posts: 1887 Joined: 20-November 04 From: Iowa Member No.: 110 |
Here's an article about this second one: http://www.astrobio.net/components/com_new...ail.php?id=6082 QUOTE ...What’s more, their work indicates the potential presence of an enormous planet, perhaps up to 10 times the size of Earth, not yet seen, but possibly influencing the orbit of 2012 VP113, as well as other inner Oort cloud objects. Yikes! That would make this other embargoed discovery tame by comparison! This was predicted a couple of years ago, from the 2012 DDA abstracts QUOTE ...a PMSC has an important effect on objects at inner Oort cloud distances, say between 300 AU and 2000 AU, to make their perihelion distances to continually oscillate with a large enough amplitude to account for objects both inside and outside Neptune's orbit. This naturally produces an extra amount of TNO's with semimajor axes between 300 and 2000 AU and perihelion inside Neptune's orbit, like 2006 SQ372 and 2000 OO67.... ... With the results from the numerical simulator we compare the model with and without the PMSC with observations. We conclude that a PMSC is compatible with the existence of 2006 SQ372 and 2000 OO67 and, in fact, although not conclusively, we can also claim that the observations of 2006 SQ372 and 2000 OO67, compared to all other scattered objects, would be lucky events if no PMSC exists. http://adsabs.harvard.edu/abs/2012DDA....43.0501G |
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Mar 26 2014, 06:03 PM
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#29
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
According to my watch the embargo should be over now.
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Mar 26 2014, 06:05 PM
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#30
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
ESO release: rings around Chariklo http://www.eso.org/public/news/eso1410/ I am supposed to be acting surprised, right?
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