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Pluto and dwarf planets have different meanings
The reason why Pluto is not included in the nine planets is because Pluto has gone out of orbit on its own for an unknown number of years and is no longer a major planet.
Because Pluto is inherently small.
Dwarf planets are a new group of independent objects added to the International Astronomical Union's reclassification of objects within the solar system on 24 August 2006, and this definition applies only to the inner solar system. In simple terms, dwarf planets fall somewhere between planets and small solar system bodies, but the definition of such objects is still debated by astronomers after the conference.
So Pluto is in the range of dwarf planets, but dwarf planets don't just represent Pluto, it's the same as the one on the second floor.
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It won't change, it's just a code name. Pluto was just removed from the original nine planets, but Pluto is still Pluto, so why change its name?
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In Roman mythology, Pluto (the Greeks called the leader of the underworld Hades) was the leader of the underworld. The planet got its name (and nothing else) because it was so far from the sun that it remained silent in endless darkness, and it just so happened that the first two letters of Pluto were the initials of the discoverer, Percival Lowell.
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Why do you want to change it? Pluto is not one of the nine planets, but it still revolves around the sun.
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Pluto is a dwarf planet in the Kuiper Belt. Pluto, or asteroid 134340, was discovered by Clyde Tombaugh in January 1930 based on calculations by American astronomer Lowell and named after Pluto, the king of Pluto in Roman mythology. It was once one of the nine planets in the solar system, but was later downgraded to a dwarf planet with an average distance of 5.9 billion kilometers from the Sun.
Peculiarities of PlutoOne of the biggest characteristics of Pluto is that it is relatively small in size and has a very small mass. It is not comparable to all the planets in the solar system, smaller than the Earth, and smaller than the Moon. Pluto also has one of the biggest characteristics is cold, because the temperature above Pluto is relatively low, the average temperature is minus 203 degrees, because Pluto is very cold, so it is called an ice dwarf by astronomers.
Therefore, Pluto also stands out among all the planets.
The orbits of the other planets of the solar system are mostly close to circular, but Pluto's orbit is elongated and elliptical. The value that indicates the degree of difference between an elliptical and a perfect circle is the eccentric rate. The greater the eccentricity, the more elongated the ellipse.
The eccentricity of the Earth's orbit is that Pluto's orbit is also skewed by 17 degrees on the ecliptic plane, making it the most deviated planet in the solar system.
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In Roman mythology, Pluto (Greek: Hades) was the god of the underworld (the underworld). The reason why the planet accepted the title (after many other suggestions) may be due to the fact that it is farthest from the Sun and is particularly dim.
Another possible reason is that Pluto's PL is exactly the first letter of the name of American astronomer Percival Lowell. Kailong ("kair en") is the only known moon of Pluto. Tracks:
19,640 km from Pluto Diameter: 1,172 km Mass: kg Named after a mythological figure who ferried the spirits of the dead across the River Styx into Hades (the underworld).
Paddle a boat for the undead across the River Styx and let Hades reward the boatmen of Hades. It is based on the mythological figure, but the discoverer of Kai Long was named Karin Charlene at the same time in honor of its wife. )
The composition of Pluto is not yet known, but its density (about 2 grams per cubic centimeter) suggests that Pluto may have been made of 70 rocks and 30 ice water, like Triton. The bright part of the Earth's surface may be covered with some solid nitrogen and small amounts of solid methane and carbon monoxide, and the composition of the dark part of Pluto's surface is not yet known but may be some basic organic matter or a photochemical reaction triggered by cosmic rays. >>>More
It used to be. Even our high school geography teacher summed up the distance between the nine planets and the sun in this way: water, gold, earth, fire, wood, earth, heaven, sea, and underworld.
Pluto loses planetary status and becomes a "dwarf planet" - CCTV International. >>>More
Now it seems that Pluto's orbit is not on the ecliptic plane, mainly because it forms differently than the other 8 planets. The other eight planets were formed from dust that rotated close to the Sun. Although there are many hypotheses about the formation of Pluto, each of them can indicate that it does not operate on the ecliptic plane. >>>More