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Neptune Might Have Captured Triton
Space.com on Yahoo ^ | 5/10/06 | Sara Goudarzi

Posted on 05/10/2006 12:31:09 PM PDT by NormsRevenge

Neptune's largest moon, Triton, was originally a member of a duo orbiting the Sun but was kidnapped during a close encounter with Neptune, a new model suggests.

Triton is unique among large moons in that it orbits Neptune in a direction opposite to the planet's rotation, which long ago led scientists to speculate that the moon originally orbited the Sun. But until now, no convincing theory for how Triton paired with Neptune existed.

Gravity might have pulled Triton away from its companion to make it an orbiting satellite of Neptune, researchers report in a new study published in the May 11 issue of journal Nature.

"We've found a likely solution to the long-standing problem of how Triton arrived in its peculiar orbit," said Craig Agnor, a researcher from the University of California, Santa Cruz. "In addition, this mechanism introduces a new pathway for the capture of satellites by planets that may be relevant to other objects in the solar system."

The new model predicts that Triton came from a binary setup much like Pluto and its moon, Charon.

"It's not so much that Charon orbits Pluto, but rather both move around their mutual center of mass, which lies between the two objects," Agnor said.

Binary systems can be pulled apart by gravitation when they encounter large planets like Neptune. The orbital motion of the binary system causes one member to move slower than the other, which can disrupt the system and permanently change the orbital companion.

This mechanism, known as an exchange reaction, could have delivered Triton to any of a variety of different orbits around Neptune, Agnor said.


TOPICS: Astronomy; Science
KEYWORDS: captured; catastrophism; gravity; lunarcapture; lunarorigin; might; moon; neptune; themoon; tomvanflandern; triton; tvf; xplanets

1 posted on 05/10/2006 12:31:09 PM PDT by NormsRevenge
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To: NormsRevenge

Well, if so, what happened to it's "companion" that it originally was a part of?


2 posted on 05/10/2006 12:36:54 PM PDT by theDentist (Qwerty ergo typo : I type, therefore I misspelll.)
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To: theDentist
Well, if so, what happened to it's "companion" that it originally was a part of?

Maybe it's part of Saturn's rings. < /profvndis scientificvs >

3 posted on 05/10/2006 12:38:19 PM PDT by martin_fierro (< |:)~)
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To: NormsRevenge

maybe Triton captured Neptune.


4 posted on 05/10/2006 12:48:07 PM PDT by stylin19a (There's no place like 127.0.0.1)
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To: martin_fierro

stranger things have happened, I'm sure... like where did all the Martians go? I think they moved to Hollywood myself. :-D


5 posted on 05/10/2006 12:48:50 PM PDT by NormsRevenge (Semper Fi)
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To: NormsRevenge

This story is so gay.


6 posted on 05/10/2006 12:49:13 PM PDT by ClearCase_guy (Never question Bruce Dickinson!)
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To: theDentist

Good question. Maybe it's
Nibiru X or whatever
that thing is that is
lurking in dark space.. has a
3600 years cycle or some such.


7 posted on 05/10/2006 12:51:24 PM PDT by NormsRevenge (Semper Fi)
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To: NormsRevenge
I'm sure that the ACLU will file a brief regarding the capture.

Triton was not Mirandized.

Cogito ergo sum. Triton must be released immediately!!!

8 posted on 05/10/2006 2:02:11 PM PDT by Young Werther
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To: Young Werther

The ACLU? yikes.

Oh Great, another FREe Titon FREak advocate. ;-)


9 posted on 05/10/2006 2:08:45 PM PDT by NormsRevenge (Semper Fi)
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To: KevinDavis

Ping


10 posted on 05/10/2006 9:27:54 PM PDT by annie laurie (All that is gold does not glitter, not all those who wander are lost)
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To: NormsRevenge

amusing, but uh, no. Related:

ZetaTalk: Whiplash
ZetaTalk | written Apr 14, 2004 | Nancy Lieder
Posted on 12/30/2005 8:47:27 PM EST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1549609/posts


11 posted on 05/11/2006 7:25:09 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: 75thOVI; AndrewC; Avoiding_Sulla; BenLurkin; Berosus; CGVet58; chilepepper; ckilmer; demlosers; ...
Catastrophism

12 posted on 05/11/2006 7:26:59 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: NormsRevenge
which long ago led scientists to speculate that the moon originally orbited the Sun.

I think it still does.

13 posted on 05/11/2006 7:32:33 PM PDT by AndrewC (Darwinian logic -- It is just-so if it is just-so)
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related topics (okay, in some of these, you really have to look):

When the Days Were Shorter
Alaska Science Forum (Article #742) | November 11, 1985 | Larry Gedney
Posted on 10/04/2004 1:31:59 PM EDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1234919/posts

First Neptune Trojan Discovered
Lowell Observatory | January 8, 2003 | Kristi Phillips, Manager of Media Relations and Public Affairs
Posted on 12/28/2005 6:40:34 PM EST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1548366/posts

Astronomers poised to apply novel way to look for comets beyond Neptune
EurekAlert | 7-Jan-2003 | Anne Stark
Posted on 11/08/2005 1:41:04 AM EST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1517866/posts

Neptune-Size Planet Orbiting Common Star Hints at Many More
space.com | 11/30/05 | Robert Roy Britt
Posted on 11/30/2005 10:21:39 PM EST by KevinDavis
http://www.freerepublic.com/focus/f-news/1531709/posts

Red Planet's Ancient Equator Located
Scientific American (online) | April 20, 2005 | Sarah Graham
Posted on 04/24/2005 11:18:25 PM EDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1390424/posts

New Theory: Catastrophe Created Mars' Moons
space.com | 29 Jul 03 | Leonard David
Posted on 07/29/2003 8:56:47 AM PDT by RightWhale
http://www.freerepublic.com/focus/news/954539/posts


14 posted on 05/13/2006 7:10:30 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: annie laurie; garbageseeker; Knitting A Conundrum; Viking2002; Ernest_at_the_Beach; mikrofon
from May:

· X-Planets ping list · join · view topics · view or post blog · bookmark ·

15 posted on 10/20/2006 10:11:59 AM PDT by SunkenCiv (Dhimmicrati delenda est! https://secure.freerepublic.com/donate/)
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To: NormsRevenge
Neptune Might Have Captured Triton

I call BS, it's had it for years and hasn't released a tape to AlJazzera with it's demands yet.

16 posted on 10/20/2006 10:17:24 AM PDT by Tijeras_Slim (Dancing through life like a street mime with tourettes syndrome.)
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To: Tijeras_Slim

I Triton tell him.


17 posted on 10/20/2006 7:21:04 PM PDT by SunkenCiv (Dhimmicrati delenda est! https://secure.freerepublic.com/donate/)
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Triton may have been the larger of the two/three/five:

http://www.nineplanets.org/triton.html

Triton ("TRY ton") is the seventh and by far the largest of Neptune's satellites:

orbit: 354,760 km from Neptune
diameter: 2700 km
mass: 2.14e22 kg

http://www.nineplanets.org/pluto.html

Pluto is smaller than seven of the solar system's moons (the Moon, Io, Europa, Ganymede, Callisto, Titan and Triton).

orbit: 5,913,520,000 km (39.5 AU) from the Sun (average)
diameter: 2274 km
mass: 1.27e22 kg

The unusual nature of the orbits of Pluto and of Triton and the similarity of bulk properties between Pluto and Triton suggest some historical connection between them. It was once thought that Pluto may have once been a satellite of Neptune's, but this now seems unlikely. A more popular idea is that Triton, like Pluto, once moved in an independent orbit around the Sun and was later captured by Neptune. Perhaps Triton, Pluto and Charon are the only remaining members of a large class of similar objects the rest of which were ejected into the Oort cloud.

http://metaresearch.org/solar%20system/origins/original-solar-system.asp

The Original Solar System
Tom Van Flandern, Meta Research
[Reprinted from Meta Research Bulletin, Vol. 6 p. 17 -- 97/06/15]

Neptune, of course, has a highly disrupted satellite system. But the close resemblance between Pluto and Triton has been noted by many astronomers. They surely qualify as “twins” as well as any pair of solar system bodies. The fission theory tells us that Pluto (with smaller mass) must have been exterior to Triton in the original configuration, which is consistent with results obtained nearly two decades ago and reviewed in Chapter 17.

[also see "On the Origin of Pluto and Triton", Meta Research Bulletin, Vol. 10 (2001), p. 59


18 posted on 10/20/2006 7:30:54 PM PDT by SunkenCiv (Dhimmicrati delenda est! https://secure.freerepublic.com/donate/)
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Hit-and-Run as Planets Formed
Written by G. Jeffrey Taylor
Hawai’i Institute of Geophysics and Planetology
November 27, 2006
http://www.psrd.hawaii.edu/Nov06/hit-and-run.html
http://www.psrd.hawaii.edu/WebImg/Fastlight-collision.jpg


19 posted on 04/06/2008 8:57:06 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_____________________Profile updated Saturday, March 29, 2008)
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Catastrophism
 
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
 

20 posted on 03/13/2010 9:10:14 AM PST by SunkenCiv (Freedom is Priceless.)
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