Are the nine planets going to be 12 big, and why are the nine planets becoming the eight planets?

I also think that Pluto should not be counted among the nine major planets, in terms of size and orbital direction, it should be the moon of a large planet such as Neptune.

Yes, it has been found that there is a strong gravitational pull around Pluto that is pulling Pluto outward, and if the Sun's gravitational pull is enough, it will become 10 large, if not enough, it will become 8. Big 12? It doesn't seem to have been announced.

It may turn into 14 planets later! Scientists say:"Probably let the moon compare with one"Xena"Also far away as the 13th and 14th planets!

I think Pluto should exit the big planet! Become a second-class planet, it is a planet! Pluto is only 3000-3600 kilometers longitudinal!

There is this news, and there are a lot of reports on the paper recently.

Personally, I don't accept it emotionally, maybe I'm used to it, and I think the names of the nine planets are very mysterious and beautiful, and now I add something "Xena" and "Charon", which feels out of place.

Yes, three new "Ceres", "Charon", and "Xena" have been added.

I don't know

I've heard that, too

But it's not impossible, the current nine planets are also developed from the sun + earth + moon!

Right

At the moment, astronomers are in a meeting, and it has been proposed that the drug become 12 large, but there is no final decision...

Pay attention to the news.

Yes. News from the Chinese Academy of Sciences.

There's such a thing, but it doesn't seem to have been decided yet, right?

But I like the name Pluto very much, it's evil but imposing.

Here's why:

Nine planets used to be a popular term, but since the International Astronomical Union in 2006, when it voted to downgrade Pluto as a dwarf planet, there have only been eight planets in the solar system.

In Resolution 5, adopted at the 26th session of the International Astronomical Union held in Prague on 24 August 2006, Pluto was classified as a dwarf planet and removed from the list of nine planets in the solar system. Dozens of other planets larger and heavier than Pluto did not crowd the ranks of the stars, and the solar system became eight planets, while Pluto was relegated to a dwarf planet.

Characteristics of the Eight Planets:

Jupiter-like planets, including Jupiter and Saturn, are mainly composed of liquefied gas, are much larger in volume and mass than terrestrial planets, are farther from the Sun, less dense, are located outside the asteroid belt, and have halos.

Perihelio-solar planets, including Uranus and Neptune, are between the first two in volume and mass, the furthest from the Sun, are composed mainly of solidified gases, are also densely so, have lower surface temperatures, and have halos.

Jupiter is the largest of the eight planets, enough to fit the other seven. Neptune is the farthest of the eight planets from the Sun and has a pale blue light. Venus is the second closest planet to the Sun.

Because it never rains on Venus, the entire planet is covered in dust and very arid throughout the year.

Following the International Astronomical Union Assembly on 24 August 2006, Pluto was downgraded to a dwarf planet by a vote, leaving only eight planets in the solar system. The "Nine Planets" statement has become history, replaced by the "Eight Planets".

Pluto is the smallest of the nine planets, and much smaller than those eight. Pluto is only about 2,300 kilometers in diameter, which is smaller than Earth's moons. Its orbit is also very special, having an angle to the orbits of the other eight planets.

Especially after the discovery of Xena in 2003, Pluto's status was further shaken.

1.Brief introduction.

Since ancient times, people have had a strong interest in and desire to explore the planets in the sky. As a member of our solar system, the change in the number of planets is not only surprising, but also further promotes the study of the mysteries of the universe. In this, the process of changing from nine planets to eight closed trembling planets is also a striking event in the process of exploring the mysteries of the universe.

2.Nine planets.

There are nine planets in the solar system, from the Sun outwards: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.

3.The loss of Pluto.

In 2006, the International Astronomical Union (IAU) announced a reclassification of Pluto due to the issue of new planetary conditions. After discussion and voting, Pluto was finally classified as a "dwarf planet" rather than a "planet". Because of its irregular circumferential orbit and the presence of multiple celestial bodies in the area formed around Uranus and Neptune, these violated the IAU's rules for defining planets, and therefore were removed from planetary status.

4.Pluto becomes a dwarf planet.

IAU defines a "dwarf planet" as "a planet with enough mass in its orbit around the sun that its gravity and swiftness can make it an almost spherical body, but not enough to remove objects of any insect size", the most representative of which is Pluto. Although no longer a planet, Pluto still has a separate identity and is classified as a "dwarf planet" similar to other objects of its kind.

5.Later generations have a view of Pluto's loss of planetary gear.

Pluto, which has lost its planetary status, has caused opposition and controversy among many enthusiasts, who believe that Pluto should still be one of the nine planets. Some scientists have even proposed a new way of categorizing, requiring a new distinction between dwarf planets and symbols other than planets. However, this only changes the definition and criteria, and has no effect on the physical state of Pluto.

6.The evolution of the solar system and the opening of a new era.

The evolution of the solar system continues over time. Although the nine planets have become eight planets, we are able to better understand the laws of the universe and the solar system through such changes. Pluto's loss of planetary status also means a new era in which future scientists and astronomers will continue to explore, research, and discover.

7.Summary.

The changes in the solar system have always been an important research direction, and the changes in the number of planets have allowed us to study the laws of the solar system more deeply. Pluto's loss of planetary status but still in our field of vision is also an important reminder and inspiration for our exploration of the universe, allowing us to see a wider and infinite world.

The nine planets used to be more popular, including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto, but since the International Astronomical Union held in 2006, it voted to downgrade Pluto as a dwarf planet, and since then there are only eight planets in the solar system. <

The nine planets used to be more popular, including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto, but since the International Astronomical Union held in 2006, it voted to downgrade Pluto as a dwarf planet, and since then there are only eight planets in the solar system.

As a planet needs to meet the motion around the sun; The mass is large enough to overcome gravity to make itself approximately a sphere; There are several conditions that there can be no larger celestial bodies in the vicinity of the orbit. Although Pluto was satisfied with the first two of them, it was not until the discovery of Eris that Pluto had to be "expelled" from the planetary class.

The reason for this is that Pluto's orbital angle is very different from that of the other eight planets, and Pluto is in the Kuiper Belt, where there are many small bodies, and Eris is located in the Kuiper Belt, of which the mass of Eris is greater than that of Pluto, so Pluto is no longer a planet.