what is "pluto" ? Explatation of pluto?

Answer 1

maybe, what you are looking for may be found here:
http://en.wikipedia.org/wiki/Pluto

pluto does orbit the sun, is ball-shaped, does not have an isolated orbit (a bunch of other similar bodies have similar orbits.), and is not a satellite so it is not a planet. this does not change anything about the solar system or pluto. it just corrects the mistake of classifying pluto as a planet initially. i don't know how long this will drag on tho. many planetary astronomers are not satisfied that the definition is rigorous enuf. i can accept that the definition is flawed, but i can not accept that pluto is a planet.

many astronomers consider pluto and charon to be a binary system, but two small bodies orbit that system. they are called nix and hydra.

i have been waiting for this since i was about twelve. i feel somewhat satisfied. i knew 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. this was the right thing to do, believe me.

incidental, "134340 pluto" was never a moon of neptune. neptune did capture triton. this is why triton has a retrograde orbit.

Answer 2

Pluto, the last planet to join the heavenly pantheon, became the first to leave it. The status of Pluto had been under discussion for some time, but with the discovery of 2003 UB313, nicknamed Xena, the question became acute, for it seemingly had as much right as Pluto to be called a planet.

On August 24, 2006, the International Astronomical Union surprised the world by voting in a new definition of planet, one that would exclude Pluto and bring the total number down to eight. (There had previously been been strong speculation that the redefinition would bring the total up to 12 instead of down.)

Pluto was instead classified as a dwarf planet, along with Ceres and the aforementioned Xena. The main difference between a dwarf planet and the real thing is that the dwarf variety has not cleared the area of its orbital path.

This redefinition met with a wave of protests from those who wanted to see the ninth planet grandfathered in, including but not limited to supporters of the late Clyde Tombaugh, who discovered Pluto in 1930. His widow, however, said he would have been accepting of the IAU's decision since "he was a scientist" and understood that astronomers had to take into account newly discovered objects in the Kuiper Belt (where Pluto is located).

But opponents of Pluto's demotion remain unconsoled and have generated a thriving industry in T-shirts, mugs and other memorabilia. Among the many slogans of this movement was one which played on the mnemonic for the names of the erstwhile nine:

Answer 3

Pluto, officially designated 134340 Pluto, is the second-largest 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, have often been considered a binary system because they are more nearly equal 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 planet, therefore Charon is regarded as a moon of Pluto for now. Two smaller moons, Nix and Hydra, were discovered in 2005.

Answer 4

pluto? a planet pluto or pluto, a disney character? (lol)

Pluto orbits beyond the orbit of Neptune (usually). It is much smaller than any of the official planets and now classified as a "dwarf planet". 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
Pluto is too faint to be seen with the naked eye. When viewed through a telescope, it looks like a star.
Stellar occultations have revealed a tenuous atmosphere on Pluto composed primarily of nitrogen and methane gas.
Pluto is cold: -233° C (-390 ° F), just 40° C (72 ° F) above absolute zero. At this temperature, all elements would be frozen but neon, hydrogen, and helium.
Measurements indicate Pluto is the smallest planet, 2320 kilometers (1440 miles) in diameter. It is smaller than Earth's Moon.

Pluto, officially designated 134340 Pluto, is the second-largest 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, have often been considered a binary system because they are more nearly equal 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 planet, therefore Charon is regarded as a moon of Pluto for now. 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).

From 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. Pluto is also classified as the prototype of a family of trans-Neptunian objects.After the reclassification, Pluto was added to the list of minor planets and given the number 134340.

Answer 5

Poor Pluto used to be one of the planets in the solar system. Because of its dwarfism, Pluto has been declassified in 2006, as such, a dwarf planet.. Hence, is no longer considered among the 8 planets..

Answer 6

pluto used to be a planet. i'm not sure why its not considred a planet anymore. but then again some scientists say its a planet so untill we land on pluto and conduct some experiments pluto is just pluto

Answer 7

pluto was a plannet, but it is considered not to be anymore due to the fact that it has an irregular orbit and its really small, it doesnt fit in with the rest of the planets

Answer 8

Pluto is Goofy's dog...for an explanation ask Walt Disney productions;)

Answer 9

Pluto is one of the stars, it's no more a planet becoz it is much smaller than many of the stars

Answer 10

Pluto is not a "planet" anymore coz it's very small