Is there any progress in the search for the tenth planet in the solar system?

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Observations made by the Hubble Space Telescope on 2003 UB313 on December 9-10 last year showed that the so-called "tenth planet" was 1,490 miles (2,398 kilometers) in diameter and 60 miles (97 kilometers) in error. Pluto, on the other hand, was measured by Hubble to be 1,422 miles (2,288 kilometers) in diameter.

Therefore, it is certain that 2003 UB313 is definitely larger than Pluto!

There are eight planets in the solar system, which are called:

Mercury. Venus.

Earth. Mars.

Jupiter. Saturn.

Uranus. Neptune.

Definition of planets: first, celestial bodies that must orbit stars; Second, the mass is large enough to rely on its own gravity to make the celestial body spherical; The third is that there should be no other objects near this orbit. According to this division, there are only eight planets in the solar system: water, metal, earth, fire, wood, and earth, plus Uranus and Neptune.

In contrast to the concept of nine planets mentioned before 2006, Pluto was classified as a dwarf planet and removed from the list of nine 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. It must be a celestial body orbiting the star - Pluto coincides. The mass is large enough to rely on its gravitational pull to make the celestial body appear spherical, but Pluto has not been able to clear other objects in its orbit and is therefore downgraded to a dwarf planet.

8 large planets + asteroids in the asteroid belt (about 500,000, the exact number has not been counted) The eight planets and their respective moons are:

1. Mercury - 0 moons.

2. Venus - 0 moons.

3. Earth - 1 satellite.

4. Mars - 2 moons.

5. Jupiter – 61 moons.

6. Saturn – 31 moons.

7. Uranus – 21 moons.

8. Neptune – 11 moons.

Note: Originally, there was another large planet that was Pluto, but on August 24, 2006, according to the resolution of the General Assembly of the International Astronomical Civil Federation, it was adopted by 4%, and Pluto was considered a dwarf planet of the solar system and is no longer considered a large planet.

Eight, from the closest to the Sun, are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

Astronomers believe they have discovered a new world orbiting Proxima Centauri. Proxima Centauri is the closest star to our solar system. It is about 4 light-years away.

As such, it has long been at the center of speculation, and if we have the opportunity to explore places beyond the solar system, we plan to go there. Now, with the discovery of a third world orbiting Proxima Centauri, the fire of people's imagination may have been ignited again.

The discovery of this new world called Proxima Centauri was purely accidental. Jo O Faria is the lead author of a new study on the world, and he and his team are working to prove that another planet called Proxima Centauri B actually exists. The team used the European Southern Observatory's Very Large Telescope (VLT) to search for the planet.

In their search for Proxima Centauri, they found evidence that another planet orbited Proxima Centauri.

It might surprise you at first," Faria said. After the discovery, the team continued to observe the star from 2019 to 2021. What's more, the team observed the oscillation that Proxima Centauri experienced.

This contributed to the discovery of Proxima Centauri B in 2016. Because planets have a gravitational pull on their stars, their presence often causes the stars to shake slightly. This is usually a pattern for astronomers to observe stars from Earth.

Based on the data they found, Faria and his team determined that Proxima D might exist. It is also thought that it may be at the same distance from Proxima Centauri as Mercury from the Sun.

Of course, this finding is not absolute. We don't have any actual evidence that a new world orbiting Proxima Centauri actually exists. So all we can do is keep watching it. Hopefully, one day we'll be able to see these planets directly from this star.

Of course, Proxima Centauri D is not the only candidate that this star offers us. As mentioned above, Proxima B is a candidate discovered in 2016. The planet is located in Proxima Centauri's "habitable zone".

This means that the temperature can be stable enough for water to gather on the planet's surface. Aside from astronomers' observations, we have no evidence of its existence, though.

A few years after Proxima Centauri, astronomers discovered another planet orbiting Proxima Centauri. They named the planet Proxima Centauri. Faria believes that this latest discovery, Proxima Centauri D, is likely to be an exoplanet.

These planets are particularly difficult to spot. They are often overwhelmed by the light of the surrounding stars, making them difficult to spot. Therefore, we can only infer that the world exists, at least for now.

There are about 500,000 known asteroids (some say more than a million), and between the orbits of Mars and Jupiter, the so-called asteroid belt. In recent years, a group of asteroids has been discovered outside the orbit of Neptune, known as the Kuiper Belt, and Pluto is the largest known object in the Kuiper Belt.

There are now eight major planets in the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

Previously, it was thought that the solar system had nine planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Some scientists have also suggested that there are some disagreements about whether Pluto is a planet or not.

Pluto has long been a controversial celestial object.

At the 26th session of the International Astronomical Union, held in Prague on 24 August 2006, resolution V was adopted to classify Pluto as a dwarf planet.

And in June 2008, the International Astronomical Society (IAA) re-designated Pluto as the prototype of a subtaxonomic plutoid.

Outside of Pluto, there is another celestial body, which is also highly controversial.

In October 2003, a team led by Professor Michael Brown of the California Institute of Technology observed a nova called 2003-UB313 (Zena). Its furthest distance from the Sun is three times that of Pluto, it is gray in color, cold on the surface, and has an elliptical orbit, but it is larger than Pluto.