American Kuiper constellation satellite _ American Kuiper constellation satellite map HD

Is it possible to find another planet greater than or equal to Pluto in the Kuiper Belt?

The Kuiper Belt refers to a hollow disc-shaped area with dense celestial bodies in the solar system within the thickness range of 10 degrees above and below the ecliptic plane outside Neptune's orbit. Its width extends from 30 astronomical units (the distance between the sun and the earth) to 55 astronomical units, but the main part extends from 39.5 astronomical units to 48 astronomical units, and the inclination angle with the ecliptic plane is 65438 0.86 degrees.

The Kuiper Belt has only attracted the attention of scientists in recent decades. Astronomical observation here also found that it contains many dwarf planets and asteroids, among which Pluto, once listed as one of the nine planets, belongs to the Kuiper Belt, thus becoming the most famous Kuiper Belt object, and now it is listed as a ghostly planet among dwarf planets.

In fact, we know very little about the objects in the Kuiper Belt. They are far away from the sun and the light is very weak. Even with a large telescope, it is difficult to observe the celestial bodies there, but even so, scientists have discovered many dwarf planets in the Kuiper Belt like Pluto, such as Sedna, Bird God and Pregnant Star. It is estimated that there are more than 200, but the total mass is very small. Only about110 of the earth, and there is a dwarf planet called Venus (A Qin), which is about the size of Pluto and only a few tens of kilometers smaller in diameter, but its mass has surpassed Pluto, but it has not surpassed Pluto. Therefore, it is generally believed that the largest celestial body in the Kuiper Belt is Venus.

Traditionally, objects in the Kuiper Belt are fragments of protoplanetary disks around the sun. Because it has not been successfully combined into a planet, only smaller celestial bodies can be formed, so the maximum diameter is less than 3000 kilometers. However, by simulating the formation process of the solar system, scientists found that celestial bodies in the Kuiper Belt are extremely rare, and the largest star here cannot exceed 1 1,000 km, so there are many large stars with a diameter exceeding 1 1,000 km. Scientists seek the simulation of the formation of the solar system, and find that the large stars in the Kuiper Belt were not originally here, but formed in the solar system with Neptune's orbit, but they were influenced by the gravity of Jupiter, Saturn, Uranus and Neptune, and then they were thrown into the outer solar system before they came to the Kuiper Belt.

So there are no large objects in the Kuiper Belt that can surpass Pluto? Not really! Scientists have found that there is likely to be a large star with a mass equivalent to 0/0 times that of the Earth/Kloc (for example, the mass of Mars) outside the Kuiper Belt, because the orbits of some dwarf planets are obviously influenced by the gravity of this massive planet. Now astronomers are looking for this mysterious celestial body and may find it in the near future. Once it appears, a lot of data about the Kuiper Belt will have to be rewritten.

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Yes, it is a "planet" that is 27% bigger than Pluto. Pluto was pulled down from the altar of nine planets because of it, and was reduced from one planet to a dwarf planet.

The Kuiper Belt is a dense area of meteorites and asteroids along the outer edge of the solar system. It is disk-shaped beside Neptune's ecliptic plane, just like a loose doughnut around the solar system. The distance from the sun is 4.48796 12× 10? 9 kilometers (30 astronomical units).

1930, William Tombaugh, a staff member of Lowell Observatory in the United States, found a moving celestial body while searching for astronomical photos taken in the past. He sent a report to Harvard Observatory. The news caused a sensation in the world, thinking that he had discovered the ninth largest planet in the solar system. The Lowell Observatory named the planet Pluto, and later discovered its five moons. The mass of Pluto is 1.473× 10? 22kg, with a diameter of 2370km, is an icy planet.

But Pluto, the ninth largest planet, was deprived of its throne 75 years later. After 1992, some icy celestial bodies with mass and volume similar to Pluto were discovered in the Kuiper Belt, and then astronomers discovered a celestial body with mass 27% larger than Pluto in the Kuiper Belt in 2005. Its surface is methane ice like Pluto, but its mass is 1.66× 10? 22 kilograms. It is "Zena".

Therefore, in the second year, the International Astronomical Society officially defined Pluto as a dwarf planet, no longer the ninth largest planet in the solar system. Since then, there have been only eight planets in the solar system.

There is also a huge celestial body hidden in the Kuiper Belt, which has not yet appeared but has fascinated countless experts.

The 287th issue of the popular science section of the Depth of the Impression of the Universe reported that it took 10 years for NASA's New Horizon probe to reach Pluto, and it flew nearly 3 billion miles. Now it has a new goal, exploring the Kuiper Belt at the edge of the solar system. This is a cold region, containing trillions of celestial bodies from the early solar system. Recently, NASA released a photo of the celestial body 1994JA 1, which is located in the Kuiper belt, with a diameter of 90 miles (145 km) and a distance of 3 billion miles (5 billion miles) from the sun. Nasa announced that the celestial body 1994JA 1 will be used as a warm-up for a possible extended mission, and New Horizon has been observed in deep space 1994JR 1 twice.

Scientists from NASA believe that there is still a huge celestial body hidden in the Kuiper Belt, and the observation of 1994JA 1 celestial body may reveal some clues to the hidden celestial body. New Horizon's long-range reconnaissance camera imaged it at1110,000 kilometers from April 7 to 8. When the detector of New Horizon observed JA 1 at a distance of 280 million kilometers, it also broke the recent observation of 20 15438+0.

Members of the "New Horizon" scientific team said that these observations have many valuable discoveries. For example, the observation results of April 20 15 1 1 and April 20 16 show that we can accurately locate JA 1 within 1000 km, which is smaller than any other small Kuiper Belt object. The more accurate orbit allowed the scientific team to overturn the theory that JA 1 was a Pluto quasi-satellite many years ago. According to the more favorable observation position in April of 20 16, scientists determined that the rotation period of JA 1 was 5.4 hours by observing the surface albedo change. This rate is a little faster than other celestial bodies in the Kuiper Belt.

For the mission of exploring 1994JA 1, if approved by NASA, these observations will be advanced in the next few years and extended to 20 objects in the older Kuiper Belt. New horizons flew over Pluto on July 20 15 14, and observed Pluto and its five satellites at close range for the first time. Now, it is observing another object in the Kuiper Belt at a very close distance. There are signs that there is still a huge celestial body hidden in the surface Kuiper Belt, which has never appeared so far and is much larger than 1994JA 1. If this discovery is confirmed, then history will be rewritten.

First, when I was studying in K, BTYgin, M, E, BRWN, orstrom, J,151.22.2016 last year, I learned that there is a Hui Cang 6-15 billion kilometers away from the sun, which is Guinard.

Secondly, Pluto Peuto runs on the inner edge of the Kuiper Belt, so scientists calculate and simulate according to Newton's law, and predict that there should be a star bigger than Pluto outside the Kuiper Belt.

The earth turns around the sun once, which is an earth year of 365 days.

When the sun shines directly on the Tropic of Cancer, what constellations are there in the eastern sky in the evening during that time? Because at this time, the sun and the earth constellation are in a straight line, record the name of this constellation and record the time, year, month and day. When the sun shines directly on the tropic of Capricorn, can you see this constellation in the same direction in the evening? Tropic of Capricorn: Tropic of Capricorn turns once every six months ... so when the sun shines directly in the south or north, you only need to record the position and time of the constellation in the sky and space ... after half a year, there will be results. If you can see your own constellation in the evening after 6 months? It is proved that it only takes six months for the earth to revolve around the sun 360 degrees, 182.5 days.

Please participate in the verification [it only takes 182.5 days for the earth to make a 360-degree rotation around the sun]. Determine the coordinates of the solar system constellation galaxies at any night ...? Record time. After half a year, you can see this constellation galaxy in the south or north of that position, which proves to be correct.

Pluto's demotion is the representative of scientific and technological progress. Among the discovered Pluto, it is bigger than Pluto. At present, only Eris. Pluto was the tenth largest star before its demotion, but it was located on the ecliptic disk. However, none of the celestial bodies in the Kuiper Belt is bigger than Pluto, only the bird god is slightly close, but there are some differences in size. Then the pregnant star. Then the Death Star, MS4 in 2002, Death Star and Creation Star.

As for whether we can find big planets in the solar system in the future. This probability is extremely low. With today's astronomical telescopes and space telescopes, we can already observe the distant deep space, reaching the level of extragalactic galaxies, far exceeding the scope of the solar system, so the probability of the emergence of big planets is very small.

This belt really looks like Saturn's rings! Don't people think that the eight planets are just massive asteroids in this ring? There may be a real planetary system with the sun as the star outside this belt! Kind of like Saturn's massive satellite outside Saturn's ring! forehead

It is out of the gravitational range of the sun, and a planet cannot be said to be a planet of the sun.

There may be planets greater than or equal to Pluto outside the Kuiper Belt.