What's the most interesting thing u know about Pluto?<the planet>?
596182
the NASA scientists found steam rising from underground and that might only mean one thing that there should be water underneath the frozen ice.  And.... whereever there is water there is life so there might be a possibility of having life in Pluto<the planet>
998637
My favourtie planet is Jupiter because it's the largest and yet made up of a lot of gas. I actually like it because of its moons. The 4 main moons are really cool. It's one moon, Io, is the most active object in our solar system. Also, because it's soo close to Jupiter, as it rotates around it fluctuates thus making it's shape change. The other cool moon, Europa is covered in a thin layer of ice and it is believed to have H2O water underneath that ice which would make it the only other place than earth in our Solar System to have H2O. Ganymede and Callisto are two really cool moons to look at.
492540
It all depends where you draw the line.\n\nThe planet Pluto has the most eccentric orbit of all of the planets, but Pluto's orbit takes it to 49.5 Astronomical Units, 7.4 billion kilometers, at the farthest point from the Sun. \n\nThe Oort cloud is an immense spherical cloud surrounding the planetary system and extending approximately 3 light years, about 30 trillion kilometers from the Sun. This vast distance is considered the edge of the Sun's orb of physical, gravitational, or dynamical influence.
820302
Given that pluto has been demoted from the premier league of solar bodies, and no-one else has been promoted to replace it, the most recent planet discovered in our solar system is Neptune on September 23, 1846.\n\nHowever, planets have been discovered orbiting distant stars, 28 have been discovered in 2006, according to the list on the second website below. But these don't have very exciting names - things like HD 86081 b, with HD 86081 being the name of the star, and 'b' denoting the second body in that system (the first being the star itself)
1178690
Right now the international convention in astronomy is debating on how a planet is defined... Pluto appears to be just one of the thousands of objects in the Kuiper belt which is believed to contain objects more massive than Pluto, 2003 ub313 is one prime example and is classified as a Trans-Neptunian object... I have already debated this topic with all the other webdatedotcom friends I have and the arguments are pretty interesting..
281130
Features of Pluto and Charon\n\nPluto is the only planet that has not been visited by a spacecraft. It is so tiny, and so far away that even the Hubble space telescope has trouble resolving any surface features on the planet. With a diameter of only 1412 miles (2274 km, Pluto is the smallest planet in the solar system. Because of its small size, many astronomers believe that it should be classified as an asteroid instead of a planet. In fact, Pluto represents one of the great mysteries of our solar system. No one knows why this small, rocky  planet can be found among the giant gas planets of the outer solar system. Some believe that Pluto and Charon may be asteroids or comets that somehow got locked into an orbit around the Sun. Many astrononers now believe that they are actually part of the Kuiper belt and should not be classified as planets. The Kupier belt is a ring of rocky, icy objects located beyond the orbit of Pluto. Serious consideration has been given to removing Pluto from the list of planets, but the the public's fondness for this lonely wanderer will probably keep it there for some time to come. Between 1985 and 1990, the Earth was aligned with the orbits of Pluto and Charon in such a way that a series of eclipses would take place. Astronomers were able to take advantage of this situation to accurately determine the size of both Pluto and Charon, and to create the first image of Pluto showing some of its larger surface features. This revealed that Pluto is the second most contrasty body in the solar system. Astronomers are hoping that a future space probe may one day be able to show us the surface of this strange and distant world. But until then, every new discovery will bring with it a long list of new questions.\n\n\nStatistics for Pluto\nDiscovered by ...... Clyde W. Tombaugh\nYear of Discovery ...... 1930\nDiameter ...... 1412 miles (2274 km)\nNumber of Natural Satellites ...... 1\nMean Distance from the Sun ...... 3,673,537,000 miles (5,913,520,000 km)\nRotational Period ...... 6.3 days\nOrbital Period ...... 248 years\nOrbital Eccentricity ...... 0.250\nOrbital Inclination ...... 17.14 degrees\nInclination of Axis ...... 122.5 degrees\nMean Surface Temperature ...... -382° F (-230° C)\nMain Atmospheric Component ...... Methane\nApparent Magnitude ...... 15.12
389936
Nope.  That's my professional (astronomer) opinon.  Here is why:\n\nPluto is a member of a large collection of similar sized objects that orbit the sun in the same region as it.  This is the same situation that Ceres, the largest asteroid is in.  Pluto was simply the first of these icy bodies to be found, we have since found almost 1000 other objects that share orbital space with Pluto.  Many of them are almost the same sice as it, and one (2003 UB313) is in fact larger than Pluto.\n\nNo good defination of planet exists that allows for pluto to be a planet without admitting about 10-100 other objects in as planets as well, unless you simple state that Pluto is a planet in an ad hoc manner.\n\nThe definition that I generally use in my work is that a planet is an object that has cleared it's orbital space of all other small bodies.  All of the main 8 planets satisfy the criteria.  Pluto, 2003 UB313, Ceres and other small bodies do not.
932496
http://en.wikipedia.org/wiki/Pluto\nhttp://www.iau.org/fileadmin/content/pdfs/Resolution_GA26-5-6.pdf\n\non 24 august 2006, the international astronomical union reclassified pluto.\n\npluto does orbit the sun, is ball-shaped and is not a satellite, but it does not have an isolated orbit (a bunch of other similar bodies have similar orbits.) so it is not a planet.  for the time being, the iau classifies it as a "dwarf planet".\n\ni have been waiting for this since i was about ten when i learned that pluto didn't fit the pattern set by the major bodies in the solar system so it was an anomaly. it just felt "out of place". now that astronomers have found hundreds of other bodies with similar orbits, classifying "134340 pluto" as a planet is even more irrational. i feel somewhat satisfied, but i don't know how long this will drag on tho. many planetary astronomers are satisfied that the definition is rigorous enuf. i can accept that the definition is flawed, but i can not accept that "134340 pluto" is a planet.\n\nthis was the right thing to do, believe me. this does not change anything about pluto or the solar system. this just corrects the mistake of classifying pluto as a planet initially.\n\nthis same thing happened has happened before.  in 1800, an astronomer found a body orbiting between the orbits of mars and jupiter and thought it was a planet.  astronomers finally stopped classifying them as planets after they found several other bodies with similar orbits, and no one thinks ceres, pallas, juno, and vesta are planets today.\n\nmany astronomers consider pluto and charon to be a binary system, but two small bodies orbit that system. they are called nix and hydra.\n\nincidentally, "134340 pluto" was never a moon of neptune. neptune did capture triton. this is why triton has a retrograde orbit
830407
Pluto\nFrom Wikipedia, the free encyclopedia\nJump to: navigation, search\nFor other uses, see Pluto (disambiguation).\nPluto   \nDiscovery \nDiscovered by Clyde W. Tombaugh \nDiscovered on February 18, 1930 \nOrbital characteristics (Epoch J2000) \nSemi-major axis 5,906,376,272 km\n39.481 686 77 AU \nOrbital circumference 36.530 Tm\n244.186 AU \nEccentricity 0.248 807 66 \nPerihelion 4,436,824,613 km\n29.658 340 67 AU \nAphelion 7,375,927,931 km\n49.305 032 87 AU \nOrbital period 90,613.3055 d\n(248.09 a) \nSynodic period 366.73 d \nAvg. Orbital Speed 4.666 km/s \nMax. Orbital Speed 6.112 km/s \nMin. Orbital Speed 3.676 km/s \nInclination 17.141 75°\n(11.88° to Sun's equator) \nLongitude of the\nascending node 110.303 47° \nArgument of the\nperihelion 113.763 29° \nNumber of satellites 3 \nPhysical characteristics \nDiameter 2390 km [1]\n(19% of Earth, or\n1485 mi) \nSurface area 1.795×107 km²\n(0.033 Earths) \nVolume 7.15×109 km³\n(0.0066 Earths) \nMass (1.305±0.007)×1022 kg [2]\n(0.0021 Earths) \nMean density 2.03±0.06 g/cm³ [3] \nEquatorial gravity 0.58 m/s²\n(0.059 gee) \nEscape velocity 1.2 km/s \nRotation period −6.387230 d\n(6 d 9 h 17 m 36 s) \nRotation velocity 47.18 km/h (at the equator) \nAxial tilt 119.59° (to orbit)\n112.78° (to the ecliptic) \nRight ascension\nof North pole 133.045±0.02°\n(8 h 52 min 11 s) [4] \nDeclination -6.145±0.02° \nAlbedo 0.49–0.66 (varies by 35%) [5] [6] \nSurface temp. min mean max \n33 K 44 K 55 K \n \nAdjective Plutonian \nAtmospheric characteristics \nAtmospheric pressure 0.30 pascals (summer maximum) \nComposition nitrogen, methane \nNote: This article contains special characters. \nPluto (IPA: /ˈpluːtəʊ/), designated (134340) Pluto in the Minor Planet Center catalogue, is the second-largest known dwarf planet in the solar system. It orbits between 29 and 49 AU from the Sun, and was the first Kuiper Belt Object to be discovered. Approximately one-fifth the mass of the Earth's Moon, Pluto is primarily composed of rock and ice. It has an eccentric orbit that is highly inclined with respect to the planets and takes it closer to the Sun than Neptune during a portion of its orbit. Pluto and its largest satellite, Charon, could be considered a binary system because they are closer in size than any of the other known planetoid/moon combinations in the solar system, and because the barycentre of their orbits does not lie within either body. However, the International Astronomical Union (IAU) has yet to formalize a definition for binary dwarf planets, so Charon is regarded as a moon of Pluto. Two smaller moons, Nix and Hydra, were discovered in 2005. Pluto is smaller than several of the natural satellites or moons in our solar system (see the list of solar system objects by radius).\n\nFrom its discovery by Clyde Tombaugh in 1930, Pluto was considered the ninth planet from the Sun. In the late 20th and early 21st century, many similar objects were discovered in the outer solar system, most notably the Trans-Neptunian object Eris which is slightly larger than Pluto. In August 2006 the IAU redefined the term "planet", and classified Pluto, Ceres, and Eris as dwarf planets.[1] Pluto is also classified as the prototype of a family of trans-Neptunian objects.[2][3] After the reclassification, Pluto was added to the list of minor planets and given the number 134340.[4][5]\n\nContents [hide]\n1 Discovery \n1.1 Relations to Neptune and Uranus \n1.2 Percival Lowell's influence \n1.3 Naming \n1.4 Symbol \n2 Physical characteristics \n2.1 Appearance \n2.2 Mass and size \n2.3 Atmosphere \n2.4 Composition \n2.5 Orbit \n2.5.1 Heliocentric distance \n2.6 Trans-Neptunian object \n2.7 Comet comparison \n3 Moons \n3.1 Charon \n3.2 Nix and Hydra \n3.3 Distribution \n3.4 Additional moons? \n4 Exploration of Pluto \n5 Planetary status controversy \n5.1 Omission from museum models \n5.2 Commemoration as a planet \n5.3 New discoveries ignite debate \n5.4 IAU Decisio
464949
My guess would be Pluto
642319
Wll the 10th planet is sedna.It has a vast amt. of ice on it.\nThe first detection of the long-hypothesized Oort cloud came in March 2004 when astronomers reported the discovery of a planetoid about 1,700 km (about 1,000 mi) in diameter.Pluto is about 2,360 km (1,475 mi) in diameter.\n\nThey named it Sedna, after a sea goddess in Inuit mythology in Greek Language.\nSedna was found about 13 billion km (about 8 billion mi) from the Sun. \n\nAt its farthest point from the Sun, Sedna is the most distant object in the solar system and is about 130 billion km (about 84 billion mi) from the Sun.
937727
http://en.wikipedia.org/wiki/Pluto\n\non 24 august 2006, the international astronomical union reclassified pluto.\n\npluto does orbit the sun, is ball-shaped and is not a satellite, but it does not have an isolated orbit (a bunch of other similar bodies have similar orbits.) so it is not a planet.\n\ni have been waiting for this since i was about ten when i learned that pluto didn't fit the pattern set by the major bodies in the solar system so it was an anomaly. it just felt "out of place". now that astronomers have found hundreds of other bodies with similar orbits, classifying "134340 pluto" as a planet is even more irrational. i feel somewhat satisfied, but i don't know how long this will drag on tho. many planetary astronomers are satisfied that the definition is rigorous enuf. i can accept that the definition is flawed, but i can not accept that "134340 pluto" is a planet.\n\nthis was the right thing to do, believe me. this does not change anything about pluto or the solar system. this just corrects the mistake of classifying pluto as a planet initially.\n\nthis same thing happened has happened before.  in 1800, an astronomer found a body orbiting between the orbits of mars and jupiter and thought it was a planet.  astronomers finally stopped classifying them as planets after they found several other bodies with similar orbits, and no one thinks ceres, pallas, juno, and vesta are planets today.\n\nmany astronomers consider pluto and charon to be a binary system, but two small bodies orbit that system. they are called nix and hydra.\n\nincidentally, "134340 pluto" was never a moon of neptune. neptune did capture triton. this is why triton has a retrograde orbit
919486
All of the above are incorrect in terms of the semantics of what "officially" makes a planet a planet. You need to look at the IAU (International Astronomical Union) definition of planet to see why Pluto is now defined as a dwarf planet\n\nFirst, why does Pluto not fit the IAU planet defintion?\n\n(1) A "planet"1 is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.\n\nPluto fails in "c".  Personally, I think "neighborhood" should be definined in terms of an orbital dynamics phase space since it never comes close to Neptune due to the 3:2 resonance  of their  orbits: my opinion and $3.95 will get you decaf latte at Starbucks. (Hmm... Neptune has not cleared Pluto out of ITS orbit either. . . maybe they know about some other icy bodies in Pluto's orbit?)\n\nPluto DOES meet the qualifications  for a dwarf planet.\n(2) A "dwarf planet" is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape2, (c) has not cleared the neighbourhood around its orbit, and (d) is not a satellite.
126086
The average temperature of Pluto is 44 K, -229 degrees C, or -380 degrees F.  The coldest ever there was 33 K, -240 degrees C, or -400 degrees F.  The hottest ever there was 55 K, -218 degrees C, or -361 degrees F.
63676
These are good questions. I do not think anyone knows exactly, but I have heard the conjecture often that Pluto is an escaped moon or a captured planet from somewhere else, and was not present at the formation of the Solar System. Also it is possible that Pluto's strange orbit is the result of some collision. \n\nThe rotational angular momentum of Uranus is quite different from the other planets. It's rotational axis is tilted significantly from the orthogonal to the ecliptic (plane of orbits of most planets), and it is said to rotate in the "opposite" sense to earth and the sun and some of the other planets. However, since the tilt of Uranus' rotational axis is roughly 97.92 degrees, I do not know how strongly I would want to assert that it rotates in the opposite or retrograde sense to most of the other bodies in the solar system. Again, this could be caused by a collision. In one of the attached references, it is claimed that this could be caused by a tidal effect, but it is hard for me to understand how. \n\nIt turns out that both Pluto and Venus also rotate in a retrograde sense, so it is not that uncommon, although theories of the origin of the solar system imply that one would not expect a lot of deviations of angular momentum from the major direction of angular momentum in the system. In the case of our system, especially given the orbits of the planets with small inclinations to the ecliptic, and the very large angular momenta of the Sun, Jupiter and Saturn, this is basically correct. \n\nNeptune is probably called the blue planet because it is blue, although of course Uranus and Earth are blue as well (for different reasons). Neptune's blue is at least partly caused by the presence of methane in its atmosphere.
800316
http://en.wikipedia.org/wiki/Pluto\n\non 24 august 2006, the international astronomical union reclassified pluto.\n\npluto does orbit the sun, is ball-shaped and is not a satellite, but it does not have an isolated orbit (a bunch of other similar bodies have similar orbits.) so it is not a planet.\n\ni have been waiting for this since i was about ten when i learned that pluto didn't fit the pattern set by the major bodies in the solar system so it was an anomaly. it just felt "out of place". now that astronomers have found hundreds of other bodies with similar orbits, classifying "134340 pluto" as a planet is even more irrational. i feel somewhat satisfied, but i don't know how long this will drag on tho. many planetary astronomers are satisfied that the definition is rigorous enuf. i can accept that the definition is flawed, but i can not accept that "134340 pluto" is a planet.\n\nthis was the right thing to do, believe me. this does not change anything about pluto or the solar system. this just corrects the mistake of classifying pluto as a planet initially.\n\nthis same thing happened has happened before. in 1800, an astronomer found a body orbiting the sun between the orbits of mars and jupiter and thought it was a planet. astronomers finally stopped classifying them as planets after they found several other bodies with similar orbits, and no one thinks ceres, pallas, juno, and vesta are planets today.\n\nmany astronomers consider pluto and charon to be a binary system, but two small bodies orbit that system. they are called nix and hydra.\n\nincidentally, "134340 pluto" was never a moon of neptune. neptune did capture triton. this is why triton has a retrograde orbit
785248
http://en.wikipedia.org/wiki/Pluto\nhttp://www.iau.org/fileadmin/content/pdfs/Resolution_GA26-5-6.pdf\n\non 24 august 2006, the international astronomical union reclassified pluto.\n\npluto does orbit the sun, is ball-shaped and is not a satellite, but it does not have an isolated orbit (a bunch of other similar bodies have similar orbits.) so it is not a planet.\n\ni have been waiting for this since i was about ten when i learned that pluto didn't fit the pattern set by the major bodies in the solar system so it was an anomaly. it just felt "out of place". now that astronomers have found hundreds of other bodies with similar orbits, classifying "134340 pluto" as a planet is even more irrational. i feel somewhat satisfied, but i don't know how long this will drag on tho. many planetary astronomers are satisfied that the definition is rigorous enuf. i can accept that the definition is flawed, but i can not accept that "134340 pluto" is a planet.\n\nthis was the right thing to do, believe me. this does not change anything about pluto or the solar system. this just corrects the mistake of classifying pluto as a planet initially.\n\nthis same thing happened has happened before.  in 1800, an astronomer found a body orbiting the sun between the orbits of mars and jupiter and thought it was a planet.  astronomers finally stopped classifying them as planets after they found several other bodies with similar orbits, and no one thinks ceres, pallas, juno, and vesta are planets today.\n\nmany astronomers consider pluto and charon to be a binary system, but two small bodies orbit that system. they are called nix and hydra.\n\nincidentally, "134340 pluto" was never a moon of neptune. neptune did capture triton. this is why triton has a retrograde orbit