Pluto is a Planet!

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Profile Eldart
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Message 1680171 - Posted: 15 May 2015, 22:58:51 UTC - in response to Message 1679114.  
Last modified: 15 May 2015, 23:10:37 UTC

Pluto and Charon capturing all those moons. They probably have a real strong gravitational pull together acting as a sort of binary system,
since they are so close. There could be more moons, we won't know until the probe gets closer. Odds are Pluto is not boring, planet or not.


I agree Lynn.



Me too. Greetings .
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Message 1680211 - Posted: 15 May 2015, 23:54:24 UTC - in response to Message 1680171.  

Welcome to the boards Eldart!
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Message 1680238 - Posted: 16 May 2015, 0:23:39 UTC - in response to Message 1680211.  

I am delighted to be part of this. Thank you very much Lynn!
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Message 1680943 - Posted: 18 May 2015, 6:34:31 UTC - in response to Message 1680211.  

Welcome to the boards Eldart!


+1
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Message 1680995 - Posted: 18 May 2015, 11:01:42 UTC - in response to Message 1680943.  

Thanks Julie, best regards.


ACK!! ACK!! AAACK!!
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Message 1681010 - Posted: 18 May 2015, 12:13:13 UTC - in response to Message 1680995.  
Last modified: 18 May 2015, 12:13:40 UTC

Welcome.

Maybe Aliens are annoying...

Close Encounters of the Annoying Kind
https://www.youtube.com/watch?v=sGJK5xFqm7Q
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Message 1684942 - Posted: 28 May 2015, 0:58:35 UTC - in response to Message 1681010.  

Pluto in the 3 images has dark patches all over it's surface. Which could indicate, geological processes at work. It also looks like there could be snow/ice, etc to. It doesn't look like it will be dull.


NASA’s New Horizons Sees More Detail as It Draws Closer to Pluto


What a difference 20 million miles makes! Images of Pluto from NASA’s New Horizons spacecraft are growing in scale as the spacecraft approaches its mysterious target. The new images, taken May 8-12 using a powerful telescopic camera and downlinked last week, reveal more detail about Pluto’s complex and high contrast surface.





These images show Pluto in the latest series of New Horizons Long Range Reconnaissance Imager (LORRI) photos, taken May 8-12, 2015, compared to LORRI images taken one month earlier. In the month between these image sets, New Horizons’ distance to Pluto decreased from 68 million miles (110 million kilometers) to 47 million miles (75 million kilometers), as the spacecraft speeds toward a close encounter with the Pluto system in mid-July. The April images are shown on the left, with the May images on the right. All have been rotated to align Pluto’s rotational axis with the vertical direction (up-down), as depicted schematically in the center panel. Between April and May, Pluto appears to get larger as the spacecraft gets closer, with Pluto’s apparent size increasing by approximately 50 percent. Pluto rotates around its axis every 6.4 Earth days, and these images show the variations in Pluto’s surface features during its rotation. These images are displayed at four times the native LORRI image size, and have been processed using a method called deconvolution, which sharpens the original images to enhance features on Pluto. Deconvolution can occasionally add “false” details, so the finest details in these pictures will need to be confirmed by images taken from closer range in the next few weeks. All of the images are displayed using the same linear brightness scale.

http://www.nasa.gov/feature/nasa-s-new-horizons-sees-more-detail-as-it-draws-closer-to-pluto
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Message 1685032 - Posted: 28 May 2015, 7:41:43 UTC

Very interesting images, thank you Lynn!
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Message 1685053 - Posted: 28 May 2015, 8:49:38 UTC

Thank's Lynn that is interesting only 2 months and then we can see what it looks like
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Message 1687491 - Posted: 3 Jun 2015, 23:22:42 UTC - in response to Message 1685053.  
Last modified: 3 Jun 2015, 23:23:47 UTC

Wanted to wait for an update. Julie & Glenn, your welcome.

Pluto's moons tumble in orbit, Hubble measurements reveal

Pluto’s moons have been tracked closely for the first time, showing that they tumble unpredictably rather than keeping one face fixed on their host planet.

Astronomers also observed that Pluto, whose status was downgraded to a dwarf planet in 2006, might be better regarded as a binary dwarf as it is locked in orbit with its largest moon, called Charon.

The twin system creates an imbalanced and shifting gravitational field, which sends the tiny outer moons spinning chaotically, the measurements from the Hubble space telescope showed.

http://www.theguardian.com/science/2015/jun/03/plutos-moons-have-chaotic-orbits-hubble-measurements-reveal
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Message 1687526 - Posted: 4 Jun 2015, 1:06:52 UTC - in response to Message 1687491.  

NASA’s Hubble Finds Pluto’s Moons Tumbling in Absolute Chaos

If you lived on one of Pluto’s moons, you might have a hard time determining when, or from which direction, the sun will rise each day. Comprehensive analysis of data from NASA’s Hubble Space Telescope shows that two of Pluto’s moons, Nix and Hydra, wobble unpredictably.

“Hubble has provided a new view of Pluto and its moons revealing a cosmic dance with a chaotic rhythm,” said John Grunsfeld, associate administrator of NASA’s Science Mission Directorate in Washington. “When the New Horizons spacecraft flies through the Pluto system in July we’ll get a chance to see what these moons look like up close and personal.”

http://www.nasa.gov/press-release/nasa-s-hubble-finds-pluto-s-moons-tumbling-in-absolute-chaos
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Message 1687546 - Posted: 4 Jun 2015, 1:48:15 UTC - in response to Message 1687526.  

Great read.
I would also say the the only reason we see chaos in these moons is our measurements and modeling power are not up to the scale of solving these observations using the Kepler model.
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Message 1687562 - Posted: 4 Jun 2015, 3:40:52 UTC - in response to Message 1687546.  

Great read.
I would also say the the only reason we see chaos in these moons is our measurements and modeling power are not up to the scale of solving these observations using the Kepler model.

I think you misread it. It isn't the orbits of the moons that they were describing as chaotic (Kepler's law), but their rotation on their axis. Like our moon is tidally locked so one side faces earth, these moons can't lock because Pluto and Charon are orbiting each other, constantly shifting the center of mass and hence the point at which they could lock.

As to their orbits, three were described as in resonance, so they have settled down for long term. This isn't unexpected given the large mass difference between the small moons and Pluto / Charon. If they (Pluto / Charon / moons) were all about the same mass, the orbits would be chaotic enough to eject several.
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Message 1689759 - Posted: 10 Jun 2015, 11:58:46 UTC - in response to Message 1687491.  

Wanted to wait for an update. Julie & Glenn, your welcome.

Pluto's moons tumble in orbit, Hubble measurements reveal

Pluto’s moons have been tracked closely for the first time, showing that they tumble unpredictably rather than keeping one face fixed on their host planet.

Astronomers also observed that Pluto, whose status was downgraded to a dwarf planet in 2006, might be better regarded as a binary dwarf as it is locked in orbit with its largest moon, called Charon.

The twin system creates an imbalanced and shifting gravitational field, which sends the tiny outer moons spinning chaotically, the measurements from the Hubble space telescope showed.

http://www.theguardian.com/science/2015/jun/03/plutos-moons-have-chaotic-orbits-hubble-measurements-reveal


Might say that sounds about right as Charon's size is rather large compared to the size of Pluto.
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Message 1689795 - Posted: 10 Jun 2015, 14:03:01 UTC - in response to Message 1689759.  

Might say that sounds about right as Charon's size is rather large compared to the size of Pluto.

Charon and Pluto. What next? Hel:) http://en.wikipedia.org/wiki/Hel_(being)
http://sv.wikipedia.org/wiki/Pluto#/media/File:Pluto_Charon_Moon_Earth_Comparison.png
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Message 1694115 - Posted: 20 Jun 2015, 23:19:53 UTC - in response to Message 1689795.  

Fuzzy pictures. NASA not much better. In living color.


Pluto in Color: Movie Shows Dwarf Planet's Orbital Dance With Moon Charon

Pluto and its moon Charon have been captured in full color and, well, slightly jerky motion by NASA's New Horizons probe. At a distance of around 30 million miles (50 million kilometers), the duo are little more than a handful of pixels wide, but already the color and shape of each can be discerned, as well as the complex orbital dance they perform every week or so.

Because Charon is nearly an eighth of Pluto's mass, the two worlds are locked in an orbit around a shared center of gravity in space. They both rotate once every 6.4 Earth days. New Horizons is designed to study the particulars of that pattern and address many other questions about mysterious Pluto and its surroundings.

https://youtu.be/wrqjsM-QBY4
Color Video.

http://www.nbcnews.com/science/space/pluto-color-movie-shows-dwarf-planets-orbital-dance-moon-charon-n378856
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Message 1694225 - Posted: 21 Jun 2015, 7:46:01 UTC

Thank you for the update, Lynn :)
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Message 1694378 - Posted: 21 Jun 2015, 17:23:37 UTC

Both Earth and Pluto have large moons, in proportion to their own diameters, which lie notably close to their primaries. In both cases this seems to be the result of a primordial collision with another sizable body.
It is sometimes suggested that that such a large moon is necessary for a stably rotating planet that could foster complex life, and further, that the collisions that produce such moons are rare.
As we have two apparent examples of such moon-planet parings in our own solar system, I submit that, on this basis, the conditions favorable for advanced forms of life in the universe need not be rare.
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Message 1694513 - Posted: 22 Jun 2015, 6:11:03 UTC - in response to Message 1694378.  
Last modified: 22 Jun 2015, 6:12:14 UTC

Both Earth and Pluto have large moons, in proportion to their own diameters, which lie notably close to their primaries. In both cases this seems to be the result of a primordial collision with another sizable body.
It is sometimes suggested that that such a large moon is necessary for a stably rotating planet that could foster complex life, and further, that the collisions that produce such moons are rare.
As we have two apparent examples of such moon-planet parings in our own solar system, I submit that, on this basis, the conditions favorable for advanced forms of life in the universe need not be rare.


If we have two of these systems in our solar system only, and as there are a quintillion or even more solar systems in our universe, how can ETI be rare throughout the cosmos, I should wonder.
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Message 1694538 - Posted: 22 Jun 2015, 8:48:29 UTC - in response to Message 1694537.  

If we have two of these systems in our solar system only, and as there are a quintillion or even more solar systems in our universe, how can ETI be rare throughout the cosmos, I should wonder.

You would be about right that statistically there probably is other life out there somewhere, and most people accept that. But given the sheer distances involved, millions & billions of light years, we and they are unlikely to know that each other exist.


I miscomprehended Michael's post. I thought he meant finding life would be rare, looked over the word 'not' oops
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