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134340 Pluto is just a largest Kuiper belt object like 1 Ceres is the largest main-belt asteroid. 134340 Pluto is just the first TNO that was discovered. It was found in 1930 by Clyde Tombaugh... The second TNO 15760 (1992 QB1) was found decades later. It was discovered in 1992 by David Jewitt and Jane Luu.

Pluto was called a planet only because astronomers expected to find a planet. They thought that were something perturbing Neptune's motion by its gravity, an object about a size of Neptune itself but father away. (Neptune itself was found when astronomers realised that something perturbing Uranus.) Later it was realised that "perturbations" in Neptune's orbit didnt exist, they were just errors in calculations.

134340 Pluto is just one icy object in 2:3 mean motion resonance with Neptune. These are called "plutinos" and other large plutinos include 90482 Orcus, 28978 Ixion and 38628 Huya. They have orbits similar to Pluto (Crossing Neptunes orbit for example.). Pluto's composition size and orbitar characteristics are similar to the other Kuiper belt TNO:s so it is definitely a TNO and a KBO (Kuiper belt object). Other large Kuiper belt objects are 136472 Makemake, 136108 Haumea, 50000 Quaoar and 20000 Varuna. Many KBO:s (and also many asteroids) have moons. Some like main-belt asteroid 45 Eugenia have even two moons.

134340 Pluto's fate is not unique. The first main-belt asteroids that were discovered: 1 Ceres, 2 Pallas, 3 Juno and 4 Vesta were called planets for decades until discovery of other objects between Jupiter and Mars (first was 5 Astraea found in 1845) eventually led their reclassification as minor planets or asteroids and the serial numbers were added to their names. The area between Mars and Jupiter were named "the asteroid belt" also known as "main-belt".

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Related Questions

Is Pluto is the largest member of the Kuiper Belt?

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What types of objects would you find in the Kuiper Belt?

In the Kuiper Belt, you would find a variety of icy objects such as dwarf planets, comets, asteroids, and small moons. Some of the most well-known objects in the Kuiper Belt include Pluto, Eris, Makemake, and Haumea.


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Pluto's orbit is more elliptical than most Kuiper belt objects, it has a higher inclination relative to the plane of the solar system, and its composition is different from the typical Kuiper belt objects.


which is true of pluto ?

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Was Pluto the biggest object in the Kuiper Belt?

The answer To Your Question Is Yes.


What planets is the kuiper belt located between?

The Kuiper belt is not between any planets. It is far beyond the orbits of Neptune and Pluto.