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No Need for Planet Nine? Small Objects' Gravity Could Explain Weird Orbits
Space.com ^ | Nola Taylor Redd,

Posted on 06/05/2018 12:03:18 PM PDT by BenLurkin

The Kuiper Belt, the region immediately beyond Neptune, harbors TNOs of many sizes. The largest is Pluto, which was discovered more than 60 years before any of the others.

Some TNOs are "detached objects," which orbit so far from the sun that they're not appreciably affected by the gravity of Neptune or any other known planet. Perhaps the most famous of these is Sedna, which takes 11,400 years to make a single orbit and never comes closer to the sun than 20 times farther out than Pluto.

In 2016, astronomers Konstantin Batygin and Mike Brown announced that a distant undiscovered planet could have created the unusual signatures of some TNO orbits in the Kuiper Belt and sent Sedna and other detached objects out to even more distant realms. Batygin and Brown calculated that this world, dubbed Planet Nine, may be 10 times more massive than Earth and orbit the sun about 20 times farther away than Neptune does.

But not everybody is on board with the Planet Nine hypothesis. The skeptics include Madigan and Fleisig, who, along with study co-author Alexander Zderic, a UC Boulder graduate student, think they've found an alternate solution to the weird orbital signatures.

According to the researchers' simulations, the TNOs move like hands on a clock, with the most massive objects moving slowly, like the hour hand, and the smaller ones ticking along quickly, like the minute hand. The result is that the smaller bodies pile up quickly — and their accumulated gravity is strong enough to reshape the paths of larger TNOs that get close.

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


TOPICS: Astronomy
KEYWORDS: catastrophism; konstantinbatygin; mikebrown; xplanets
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1 posted on 06/05/2018 12:03:18 PM PDT by BenLurkin
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To: BenLurkin

Things were much simpler when the sun rotated around the earth.


2 posted on 06/05/2018 12:05:24 PM PDT by TexasGator (Z1)
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To: BenLurkin

Planet 9 From Outer Space!................


3 posted on 06/05/2018 12:10:06 PM PDT by Red Badger (When Obama and VJ go to prison for treason, will Roseanne get her show back?...)
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To: BenLurkin

It’s turtles all the way down.


4 posted on 06/05/2018 12:10:17 PM PDT by Mr. K (No consequence of repealing Obamacare is worse than Obamacare itself.)
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To: KevinDavis; annie laurie; Knitting A Conundrum; Viking2002; Ernest_at_the_Beach; Mmogamer; ...
Thanks BenLurkin.
 
X-Planets
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
Google news searches: exoplanet · exosolar · extrasolar ·

5 posted on 06/05/2018 12:11:07 PM PDT by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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To: 75thOVI; Abathar; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; ...
Thanks BenLurkin.

6 posted on 06/05/2018 12:11:30 PM PDT by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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To: BenLurkin

Many races believe that the creation of the Universe involved some sort of God, though the Jatravartid people of Viltvodle VI believe that the entire Universe was in fact sneezed out of the nose of a being known as the Great Green Arkleseizure. The Jatravartids live in perpetual fear of the time they call “the Coming of the Great White Handkerchief”


7 posted on 06/05/2018 12:11:42 PM PDT by Mr. K (No consequence of repealing Obamacare is worse than Obamacare itself.)
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To: BenLurkin

This is why they need bigger infrared telescopes in space. There may be a big object orbiting around the Sun with a very low infrared signature that could explain all the orbit irregularities—possibly a very faint brown dwarf that may even be about the size of Neptune.


8 posted on 06/05/2018 12:12:00 PM PDT by RayChuang88 (FairTax: America's Economic Cure)
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To: BenLurkin

I heard that Planet Nine was caused by global warming...

...and republicans.


9 posted on 06/05/2018 12:14:54 PM PDT by WayneS (An appeaser is one who feeds a crocodile, hoping it will eat him last. - Winston Churchill)
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To: BenLurkin

Large objects and small objects will orbit at the same rate as long as they are at the same distance. This is the same principle demonstrated by Galileo that objects accelerate at the same rate. Orbiting is basically falling if just takes longer. Now there is some difference in rate because relativity and all but the difference between the postulated little objects and big objects is not enough. Unless one of the big objects is a planet. So they almost would have to say that planets aren’t planets to make the theory work.


10 posted on 06/05/2018 12:16:15 PM PDT by webheart (Grammar police on the scene.)
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To: Mr. K

Are they the same people who have fifty arms each and who invented aerosol deodorant before the wheel?


11 posted on 06/05/2018 12:16:48 PM PDT by WayneS (An appeaser is one who feeds a crocodile, hoping it will eat him last. - Winston Churchill)
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To: webheart

“and all but the difference between the postulated little objects and big objects is not enough. “

I think the article says that lots of little objects have the same influence as one big object.


12 posted on 06/05/2018 12:29:50 PM PDT by TexasGator (Z1)
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To: RayChuang88

“possibly a very faint brown dwarf “

I think if we had a brown dwarf in our solar system we would know it.


13 posted on 06/05/2018 12:30:32 PM PDT by TexasGator (Z1)
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To: Red Badger

I was thinking of that (Plan 9 from Outer Space) also.


14 posted on 06/05/2018 12:34:48 PM PDT by ChessExpert (NAFTA - Not A Free Trade Agreement)
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To: ChessExpert

The movie that was so bad it was good!...................


15 posted on 06/05/2018 12:37:06 PM PDT by Red Badger (When Obama and VJ go to prison for treason, will Roseanne get her show back?...)
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To: TexasGator

Yes that is what they are saying. First the orbital periods of objects beyond Neptune are going to be on the order of hundreds to thousands of years. Second randomness would put those objects roughly evenly around the sun at least at the beginning and they would resemble a very sparse asteroid belt. Thus the gravitational pull of the little objects would be distributed over large distances.

The article was trying to say that somehow the little objects would cluster together in a smaller area where they would exert a combined force. I think if one were trying to infer such a thing happening one should look at similar systems to see how they behave. I suggest planetary ring systems and the asteroid belt.


16 posted on 06/05/2018 12:40:39 PM PDT by webheart (Grammar police on the scene.)
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To: BenLurkin

This just in.....

Earth to be destroyed by a pile up of small objects.


17 posted on 06/05/2018 12:40:47 PM PDT by DannyTN (Daniel Ollis)
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To: BenLurkin

all these scientists have to do
in order to get their equations to work right
is
to enter in the fact
that the earth is flat


18 posted on 06/05/2018 12:51:18 PM PDT by faithhopecharity ("Politicans aren't born, they're excreted." -Marcus Tillius Cicero (3 BCE))
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To: TexasGator

“I think if we had a brown dwarf in our solar system we would know it.”

There’s some living in a hole in my garden.


19 posted on 06/05/2018 12:54:09 PM PDT by WKUHilltopper
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To: TexasGator
I think if we had a brown dwarf in our solar system we would know it.

The infrared Webb space telescope has ruled that out.

It easily would have picked up a brown or red dwarf.

Jury is still out on a earth sized or superearth.

20 posted on 06/05/2018 12:54:15 PM PDT by Snickering Hound
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