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Earth-sized planet predicted beyond Pluto
Cosmos Magazine ^ | Friday, February 29, 2008 | Agence France-Presse

Posted on 03/20/2008 11:43:43 PM PDT by SunkenCiv

Japanese scientists believe another planet, up to two-thirds the size of Earth, is orbiting in the far reaches of the Solar System... "Because of the very cold temperature, its surface would be covered with ice, icy ammonia and methane," said lead researcher Tadashi Mukai. The study by Mukai and co-worker Patryk Lykawka will be published in the April issue of the Astronomical Journal. "The possibility is high that a yet unknown, planet-class celestial body, measuring 30 per cent to 70 per cent of the Earth's mass, exists in the outer edges of the Solar System," says a statement released by the University. "If research is conducted on a wide scale, the planet is likely to be discovered in less than 10 years," it claims. This Planet X -- so called by scientists as it is yet unfound -- would have an oblong elliptical solar orbit and circle the sun every thousand years, the team said, estimating its radius was 15 to 26 billion km... "In coming up with an explanation for the celestial bodies, we thought it would be most natural to assume the existence of a yet unknown planet," Mukai said. "Based on our hypothesis, we calculated how debris moved over the past four billion years. The result matched the actual movement of the celestial bodies we can observe now."

(Excerpt) Read more at cosmosmagazine.com ...


TOPICS: Astronomy; Science
KEYWORDS: astronomy; catastrophism; davidraup; johnmatese; nemesis; nibiru; planet10; planet12; science; tadashimukai; tyche; xplanets
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http://www.nineplanets.org/hypo.html#nemesis


21 posted on 03/21/2008 7:53:25 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/______________________Profile updated Saturday, March 1, 2008)
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To: SunkenCiv

Given that it was only within the last 15 years when telescopes with “larger” mirror sizes than the Hale telescope on Mount Palomar started to find planets beyond Pluto at least Pluto’s size, we’re still only at the beginning to finding a potential brown dwarf companion to our Sun. With new, more advanced satellites going up within the next few years, we may finally get the technology to find it.


22 posted on 03/21/2008 6:42:35 PM PDT by RayChuang88
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To: RayChuang88

The problem with finding it used to be that the various hypothesized locations were surveyed and nothing was found. IRAS covered quite a bit of the sky and didn’t find any telltale infrared. If the companion is in a polar orbit, it probably would be missed, an idea which came from the discoverer of Pluto, who continued to survey the skies for years after his discovery. Perhaps the construction of those big scopes in the Andes (the southern hemisphere having much less landmass and population, some of the sky had been neglected) and these orbital observatories will find something. Hey, if everything was known, there’d be no reason to build stuff like that.


23 posted on 03/22/2008 8:40:05 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/______________________Profile updated Saturday, March 1, 2008)
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To: ForGod'sSake

http://www.nineplanets.org/hypo.html#nemesis

[snip] This hypothetical “death companion” of the Sun was suggested in 1985 by Daniel P. Whitmire and John J. Matese, Univ of Southern Louisiana. It has even received a name: Nemesis. One awkward fact of the Nemesis hypothesis is that there is no evidence whatever of a companion star of the Sun. It need not be very bright or very massive, a star much smaller and dimmer than the Sun would suffice, even a brown or a black dwarf (a planet-like body insufficiently massive to start “burning hydrogen” like a star). It is possible that this star already exists in one of the catalogues of dim stars without anyone having noted something peculiar, namely the enormous apparent motion of that star against the background of more distant stars (i.e. its parallax). If it should be found, few will doubt that it is the primary cause of periodic mass extinctions on Earth... However, since the examination of the entire sky in the far IR by IRAS with no “Nemesis” found, the existence of “Nemesis” is not very likely. [end]

http://www.freerepublic.com/focus/news/1962278/posts?page=46#46

http://muller.lbl.gov/teaching/Physics10/Nemesis%20book/


24 posted on 03/22/2008 11:43:17 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/______________________Profile updated Saturday, March 1, 2008)
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To: SunkenCiv

Could that be the origin of Farrakahn’s mother ship?


25 posted on 03/22/2008 11:44:52 AM PDT by Hot Tabasco (Monkey spanking is cruel......)
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To: Hot Tabasco

Not sure where that’s supposed to come from. :’)


26 posted on 03/22/2008 11:46:12 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/______________________Profile updated Saturday, March 1, 2008)
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http://muller.lbl.gov/


27 posted on 03/22/2008 11:46:47 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/______________________Profile updated Saturday, March 1, 2008)
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To: trumandogz
Mine is not doing good today but last week I had a bad case of asstroids.

Some gal in the UK just recently went in for leg surgery and had an anal transplant instead...........just a thought.

28 posted on 03/22/2008 11:49:02 AM PDT by Hot Tabasco (Congress needs to investigate the increasing disappearance of socks from washers)
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To: SunkenCiv

In Peter Thompkins book on the pyramids of Mexico, he says the complex is a model of the solar system with pyramids marking the location of the sun, moon earth and other planets.

There are ten planets so marked. The planet positions are scaled as I recall.

The old ones knew what we are now learning anew.

The book is Mysteries of the Mexican Pyramids.


29 posted on 03/22/2008 11:54:31 AM PDT by bert (K.E. N.P. +12 . Never say never (there'll be a VP you'll like))
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To: SunkenCiv
The European Southern Observatory (ESO) was built at the Atacama Desert in Chile for these reasons: 1) They needed a modern observatory to cover the southern sky, 2) the location had some of the lowest interference from the refraction of the atmosphere due its high altitude and extremely low humidity and 3) the observatories could be reached from Europe in under a day's flight time. In fact, they're building even more telescopes at that location.

But now that new telescopes that can scan the entire sky from one location will come online within the next decade, and the launches of the Wide-Field Infrared Survey Explorer satellite, the ESA Herschel infrared satellite, and the James Webb Space Telescope should finally get the tools to prove or disprove if we have a brown dwarf companion to our Sun.

30 posted on 03/22/2008 8:10:02 PM PDT by RayChuang88
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To: bert

:’) Were the glyphs deciphered at the time PT wrote his book? Because it sounds like he was just speculating. There are Mayan glyphs for Venus, the Moon, the Sun, hmm, perhaps others; I don’t think there was any Mayan interest in or even knowledge of Uranus or Neptune, let alone Pluto.


31 posted on 03/22/2008 8:16:01 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/______________________Profile updated Saturday, March 1, 2008)
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To: RayChuang88

Even if it’s not found, a bigger, better instrument will always be in the works. :’) There’s data suggesting the existence of a large unknown outer planet or more distant companion to the Sun, but the various theorists cite different data depending on what they theorize. ;’) In Britain I think it’s in vogue to just dump on all of it — one astronomer I think from there went so far to write that the planet X problem was psychological. And the Brits (and some NE US academics) also resist the idea of sudden mass extinctions due to impact, and there’s some overlap between that and Nemesis.


32 posted on 03/22/2008 8:26:35 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/______________________Profile updated Saturday, March 1, 2008)
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To: SunkenCiv

He was writing about Teotihuacan.

I don’t know about the timing with the Mayan glyphs.

The first edition is 1976.

I just looked on amazon and it is available used , hardcover cheap. I’m going to buy it, It is a great companion to his other book Secrets of the great Pyramid.

I bought the book Blam recommended Voyages of the Pyramid Builders. Tompkins books will be good paralllel reading.

I’m especially interested in the Thompkins treatment of the great pyramid and the very detailed measurements and theory of mensuration.


33 posted on 03/23/2008 4:57:33 AM PDT by bert (K.E. N.P. +12 . Never say never (there'll be a VP you'll like))
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from the “tvf” keyword.

http://www.freerepublic.com/tag/tvf/

Long-Destroyed Fifth Planet May Have Caused Lunar Cataclysm, Researchers Say
SPACE dot COM | 18 March 2002 | by Leonard David, Senior Space Writer
Posted on 03/25/2002 2:42:10 PM PST by vannrox
http://www.freerepublic.com/focus/f-news/653287/posts

Far-out worlds, just waiting to be found
New Scientist | 23 July 2005 (issue date) | Stuart Clark
Posted on 07/20/2005 10:54:18 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1447339/posts

We’re going on a planet hunt
EurekAlert | 04/05/06 | Claire Bowles
Posted on 04/05/2006 7:53:38 PM PDT by KevinDavis
http://www.freerepublic.com/focus/f-bloggers/1610016/posts

Neptune Might Have Captured Triton
Space.com on Yahoo | 5/10/06 | Sara Goudarzi
Posted on 05/10/2006 3:31:09 PM EDT by NormsRevenge
http://www.freerepublic.com/focus/f-chat/1630007/posts

An Unknown Planet Orbits in the Outer Solar System
Great Neck Record (Anton Community Newspapers) | April 13, 2007 | Julian Kane
Posted on 08/05/2007 6:22:36 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1876853/posts

Jupiter Increases Risk Of Comet Strike On Earth
New Scientist | 8-24-2007 | David Shiga
Posted on 08/24/2007 1:21:38 PM PDT by blam
http://www.freerepublic.com/focus/f-news/1886116/posts

Mystery of Saturn’s Two-Faced Moon Solved
space.com via Yahoo news | Tue Oct 9, 8:45 AM ET | Jeanna Bryner
Posted on 10/09/2007 3:31:36 PM EDT by martin_fierro
http://www.freerepublic.com/focus/f-chat/1908803/posts

Did an ancient impact bowl Pluto over?
New Scientist | October 5, 2007 | Maggie McKee
Posted on 10/30/2007 7:29:02 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1918724/posts

Ancient impact may have bowled the Moon over
New Scientist | April 17, 2007 | David Powell
Posted on 10/30/2007 10:39:35 PM EDT by SunkenCiv
http://www.freerepublic.com/focus/chat/1918728/posts

Rethinking Jupiter
Astrobio.net | Monday, November 12, 2007 | Lee Pullen
Posted on 11/12/2007 9:59:25 AM PST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1924617/posts


34 posted on 04/06/2008 8:43:07 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_____________________Profile updated Saturday, March 29, 2008)
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Title: An Outer Planet Beyond Pluto and Origin of the Trans-Neptunian Belt Architecture

Authors: Patryk Sofia Lykawka, Tadashi Mukai
(Submitted on 13 Dec 2007)
Abstract: Trans-Neptunian objects (TNOs) are remnants of a collisionally and dynamically evolved planetesimal disk in the outer solar system. This complex structure, known as the trans-Neptunian belt (or Edgeworth-Kuiper belt), can reveal important clues about disk properties, planet formation, and other evolutionary processes. In contrast to the predictions of accretion theory, TNOs exhibit surprisingly large eccentricities, e, and inclinations, i, which can be grouped into distinct dynamical classes. Several models have addressed the origin and orbital evolution of TNOs, but none have reproduced detailed observations, e.g., all dynamical classes and peculiar objects, or provided insightful predictions. Based on extensive simulations of planetesimal disks with the presence of the four giant planets and massive planetesimals, we propose that the orbital history of an outer planet with tenths of Earth's mass can explain the trans-Neptunian belt orbital structure. This massive body was likely scattered by one of the giant planets, which then stirred the primordial planetesimal disk to the levels observed at 40-50 AU and truncated it at about 48 AU before planet migration. The outer planet later acquired an inclined stable orbit (>100 AU; 20-40 deg) because of a resonant interaction with Neptune (an r:1 or r:2 resonance possibly coupled with the Kozai mechanism), guaranteeing the stability of the trans-Neptunian belt. Our model consistently reproduces the main features of each dynamical class with unprecedented detail; it also satisfies other constraints such as the current small total mass of the trans-Neptunian belt and Neptune's current orbit at 30.1 AU. We also provide observationally testable predictions.
Comments: 80 pages, 24 figures, 7 tables. Accepted for publication in The Astronomical Journal
Subjects: Astrophysics (astro-ph)
Journal reference: Astron.J.135:1161-1200,2008
DOI: 10.1088/0004-6256/135/4/1161
Cite as: arXiv:0712.2198 [astro-ph]
  (or arXiv:0712.2198v1 [astro-ph] for this version)

Submission history

From: Patryk Sofia Lykawka [view email]
[v1] Thu, 13 Dec 2007 17:18:20 GMT (2795kb)

35 posted on 10/26/2013 4:15:19 PM PDT by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: SunkenCiv

Up to two-thirds the size of Earth is not “Earth-sized”

Predicted? Meaning they don’t really have any evidence


36 posted on 10/26/2013 4:18:05 PM PDT by GeronL
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To: notdownwidems
Makes me wonder about Uranus!

Nothing but problems since the last alien probe.........

37 posted on 10/26/2013 4:18:27 PM PDT by Hot Tabasco (Make sure you have removed the kleenex from your pockets before doing laundry)
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To: samtheman

*facepalm*

really, an exploding star is a “big bully”?

is this science for third graders?


38 posted on 10/26/2013 4:20:03 PM PDT by GeronL
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Japanese scientists eye mysterious ‘Planet X’
Scientists at a Japanese university said Thursday they believed another planet up to two-thirds the size of the Earth was orbiting in the far reaches of the solar system.
By AFP February 28, 2008 (same story, apparently)
http://www.canada.com/topics/technology/science/story.html?id=ad663127-e12a-4050-a59c-12c3253f99b6


39 posted on 10/26/2013 4:20:22 PM PDT by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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Waiting in the wings: An artist's illustration showing a planet two-thirds the size of the Earth, which is believed by Japanese researchers to be in the outer reaches of the Solar System. Image: KOBE UNIVERSITY
Earth-sized planet predicted beyond Pluto

40 posted on 10/26/2013 4:22:19 PM PDT by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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