More on the "Planet X" controversy.

Solar System Surprise: A New View of What's Out There.
By Robert Roy Britt
Senior Science Writer
posted: 22 November 2004
06:24 am ET
"Given that our survey has covered almost the entire region of the
Kuiper Belt, I'm willing to bet these days that nothing larger than
Pluto will be found in the Kuiper Belt," says Caltech astronomer Mike
Brown."
....
"Brown, who now bets against finding Planet X in the Kuiper Belt,
thinks his group's discovery of Sedna portends an even more compelling
scenario.
"I'd also be willing to bet that there are many objects larger than
Pluto out in the region of space where Sedna lives," Brown said last
week. Out to about 1,000 AU, he speculates that there could be 10 or
20 Pluto-sized objects, "and a handful of larger things, too.' Some of
these suspected worlds could be as big as Mercury or even Mars, he
said."
"I asked Brown if there might be worlds larger than Pluto clear out at
the edge of the Oort Cloud, 1.5 light-years away and nearly half the
distance to the Alpha Centauri star system.
"Absolutely," he said. "Probably even likely."
http://www.space.com/scienceastronom...ay_041122.html


Bob Clark

On 26 Nov 2004 06:16:21 -0800, (Robert Clark)
wrote:

Solar System Surprise: A New View of What's Out There.
By Robert Roy Britt
Senior Science Writer
posted: 22 November 2004
06:24 am ET
"Given that our survey has covered almost the entire region of the
Kuiper Belt, I'm willing to bet these days that nothing larger than
Pluto will be found in the Kuiper Belt," says Caltech astronomer Mike
Brown."
...
"Brown, who now bets against finding Planet X in the Kuiper Belt,
thinks his group's discovery of Sedna portends an even more compelling
scenario.
"I'd also be willing to bet that there are many objects larger than
Pluto out in the region of space where Sedna lives," Brown said last
week. Out to about 1,000 AU, he speculates that there could be 10 or
20 Pluto-sized objects, "and a handful of larger things, too.' Some of
these suspected worlds could be as big as Mercury or even Mars, he
said."
"I asked Brown if there might be worlds larger than Pluto clear out at
the edge of the Oort Cloud, 1.5 light-years away and nearly half the
distance to the Alpha Centauri star system.
"Absolutely," he said. "Probably even likely."
http://www.space.com/scienceastronom...ay_041122.html

At what distance does the Suns gravational effect end?



Christopher
+++++++++++
"Never take anything for granted."

Benjamin Disraeli

Christopher wrote:

At what distance does the Suns gravational effect end?

It never ends. Do you mean at what distance do orbits
around the Sun become unstable due to influence of
other objects? IIRC, that distance is about 1 light
year.

Paul

On Fri, 26 Nov 2004 11:30:40 -0600, "Paul F. Dietz"
wrote:

Christopher wrote:

At what distance does the Suns gravational effect end?

It never ends. Do you mean at what distance do orbits
around the Sun become unstable due to influence of
other objects? IIRC, that distance is about 1 light
year.

Yep that is what I ment. In that case the Ort Cloud is 1 light year
from the sun.

Christopher
+++++++++++
"Never take anything for granted."

Benjamin Disraeli

On Fri, 26 Nov 2004 18:48:52 GMT, Christopher
wrote:

On Fri, 26 Nov 2004 11:30:40 -0600, "Paul F. Dietz"
wrote:

Christopher wrote:

At what distance does the Suns gravational effect end?

It never ends. Do you mean at what distance do orbits
around the Sun become unstable due to influence of
other objects? IIRC, that distance is about 1 light
year.

Yep that is what I ment. In that case the Ort Cloud is 1 light year
from the sun.

Christopher
+++++++++++
"Never take anything for granted."

Benjamin Disraeli

Bop. approx 80 AU. That is 80 * radious of the earth orbiting the sun
Take a calculator and compare the distances!

--
Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/

On Mon, 29 Nov 2004 17:31:31 +0100, "John Thingstad"
wrote:

On Fri, 26 Nov 2004 18:48:52 GMT, Christopher
wrote:

On Fri, 26 Nov 2004 11:30:40 -0600, "Paul F. Dietz"
wrote:

Christopher wrote:

At what distance does the Suns gravational effect end?

It never ends. Do you mean at what distance do orbits
around the Sun become unstable due to influence of
other objects? IIRC, that distance is about 1 light
year.

Yep that is what I ment. In that case the Ort Cloud is 1 light year
from the sun.

Christopher
+++++++++++
"Never take anything for granted."

Benjamin Disraeli

Bop. approx 80 AU. That is 80 * radious of the earth orbiting the sun
Take a calculator and compare the distances!

It's 7,440,000,000 miles, or double the distance to Pluto from the Sun
approx. How thick is the Ort cloud?




Christopher
+++++++++++
"Never take anything for granted."

Benjamin Disraeli

"
At what distance does the Suns gravational effect end?

Infinity.





Christopher
+++++++++++
"Never take anything for granted."

Benjamin Disraeli

That is your idea of a controversy? Boy, you live a sheltered life.

Earl Colby Pottinger

--
I make public email sent to me! Hydrogen Peroxide Rockets, OpenBeos,
SerialTransfer 3.0, RAMDISK, BoatBuilding, DIY TabletPC. What happened to
the time? http://webhome.idirect.com/~earlcp

On Fri, 26 Nov 2004 18:15:36 -0600, Earl Colby Pottinger
in accordance with The Prophecy scribed:

That is your idea of a controversy? Boy, you live a sheltered life.

Earl Colby Pottinger


Well, it has been a while since NutterNan graced us with
her presence.






--
Dr.Postman USPS, MBMC, BsD; "Disgruntled, But Unarmed"
Member,Board of Directors, afa-b, SKEP-TI-CULT® #15-51506-253.
AFA-B Official Pollster & Hammer of Thor winner - August 2004
You can email me at: DrPostman(at)gmail.com

"Again, think type and _them_ make sure that your babble is understood in
the common ENGLISH language."
-ExcrementOne displays his familiarity with irony

Robert Clark wrote:
Solar System Surprise: A New View of What's Out There.
By Robert Roy Britt
Senior Science Writer
posted: 22 November 2004
06:24 am ET
"Given that our survey has covered almost the entire region of the
Kuiper Belt, I'm willing to bet these days that nothing larger than
Pluto will be found in the Kuiper Belt," says Caltech astronomer Mike
Brown."
...
"Brown, who now bets against finding Planet X in the Kuiper Belt,
thinks his group's discovery of Sedna portends an even more compelling
scenario.
"I'd also be willing to bet that there are many objects larger than
Pluto out in the region of space where Sedna lives," Brown said last
week. Out to about 1,000 AU, he speculates that there could be 10 or
20 Pluto-sized objects, "and a handful of larger things, too.' Some of
these suspected worlds could be as big as Mercury or even Mars, he
said."
"I asked Brown if there might be worlds larger than Pluto clear out at
the edge of the Oort Cloud, 1.5 light-years away and nearly half the
distance to the Alpha Centauri star system.
"Absolutely," he said. "Probably even likely."
http://www.space.com/scienceastronom...ay_041122.html


Bob Clark

Out to 1.5 light years out, who knows? I'm hoping for some brown dwarfs
in the neighborhood.

WISE is a mission I'm excited about:
http://wise.ssl.berkeley.edu/
If there are brown dwarfs nearby, I think WISE will find them.

I am hoping WISE will give us lots of info on asteroids as well.


--
Hop David
http://clowder.net/hop/index.html