Why is the Milky Way oblate?

Because of gravity.

At the most primitive time, there were many galaxies in the Milky Way, and they were all galaxies without shape and state, and without regularity, each galaxy was like dust。As a general concept, under the action of the Milky Way, the mass of matter shrinks towards the center. However, this contraction is prevented due to the centrifugal force generated during the rotation.

Then, when the direction of the centrifugal force is perpendicular to the rotating surface, there is no centrifugal force that hinders the contraction, and due to the presence of centrifugal force, when the contraction reaches a certain level, it will stop, thus forming a contraction. Very flat disks, so the Milky Way has become what we see now.

Why the Milky Way is flat may be due to the center of the Milky Way, or it may be swallowed from other directions。Otherwise, with so many galaxies out there, they may always be walking on planes. As a result, only the center of the Milky Way rotates, and some unknown matter or energy emitted by the equator can keep the Milky Way flat.

Why the Milky Way is flat, we need to discuss the spatial perspective and gravity from two aspects. We know that the mass of a celestial body is very large, so its gravitational pull is also very large. As a result, the surrounding space inevitably has a certain deformation.

Therefore, the object attracted by it cannot fall directly towards the center. Well, spin due to that. Then, gravity produces the aggregation of objects, the distortion of space causes rotation, and the centrifugal force of celestial bodies or the centrifugal force of galaxies, i.e., gravity can only form a sphere.

There is a huge black hole at the center of the galaxy, and its gravitational pull tends to engulf the galaxy as if it were a pool of water. The current will be funnel-shaped, but since the gravitational point of the galaxy is in the center, it is not a funnel and is oblate in shape. Because only in this way can we maintain the dynamic equilibrium of the Milky Way.

The reason why the Milky Way is flat can be explained by the nebula hypothesis, we know that under the action of gravity, the dense matter of the nebula will become larger and larger, and then after reaching a certain level in this way, the particles of the large cluster are at the corner point under the action of momentum, it will move around the center of mass, so there will be a plane, that is, the plane where the air cloud rotates, but there are many particles moving up and down. As a result, the Milky Way forms the flat appearance we see.

This starts with the origin and evolution of the Milky Way, and a large number of observational data roughly give the possible origin and evolution history of the Milky Way

More than 10 billion years ago, there was a huge intergalactic cloud that was in.

It contracted under its own gravitational pull and split into several cloud patches in the process of contraction, one of which formed the later Milky Way, and the others formed the Great, Small Magellanic and other extragalactic galaxies.

Under the action of its own gravity, the large cloud blocks continue to shrink and condense, and gradually form many dense globular clumps inside, that is, the predecessors of globular clusters.

Each globular mass is at least 100,000 times the mass of the Sun, and these clumps shrink further under their own gravitational pull and contract faster than the Milky Way as a whole, eventually breaking up into many smaller fragments – protostars are created.

In the process of shrinking large cloud masses, the density of the cloud center increases the fastest.

Gradually form a central dense area, ie.

Silver Heart. produced. Affected by the gravitational pull of the galactic center, globular clusters move closer to it.

With the contraction of the large clouds, the internal movement gradually became a speech. Due to the conservation of angular momentum, along with the collapse of the gas cloud, the release of gravitational energy accelerates the rotational motion, which forms a collision, loses energy, and flattens into a silver disk, and a large number of stars are gradually formed in the silver disk, which all move around the silver center in a roughly circular orbit.

In addition, the Milky Way is not isolated, and its origin and evolution will be affected by the effects and influences of neighboring galaxies (such as collisions and mergers).

The Milky Way is oblate because of the motion of celestial bodies.

Because they're pulled by gravity, which is gravity.

The reason why the Milky Way is oblate is because that's the only way to maintain the dynamic equilibrium of the Milky Way. In fact, there's a huge black hole at the center of the Milky Way, and its gravitational pull tends to swallow the Milky Way, just like if you let go of a pool of water, yes, the flow of water will be funnel-shaped, but the gravitational point of the Milky Way is in the center, so it's not funnel-shaped, it's oblate. But don't worry about us being swallowed up, because we're far, far away from that giant black hole, tens of thousands of light-years away, and we're closer to the edge of the Milky Way.

The result of the action of gravitation!

There are a large number of celestial bodies in the universe, including various types of celestial bodies such as stars, planets, moons, dwarf planets, asteroids, comets, nebulae, interstellar dust, etc., and due to the mutual attraction between celestial bodies and around each other, different levels of celestial bodies have been formed, including the Earth-celestial system, from childhood, to the moon, the solar system, the cosmic system, the metagalaxies, and the universe. Relatively much is known about the Earth-Moon system, the solar system, and the Milky Way, but relatively little is known about the system and the universe as a whole.

<> celestial bodies in the Milky Way galaxy are in the universe, there are multiple celestial bodies together and form a certain shape at the same time, such as the moon system is composed of two celestial bodies, the earth and the moon, and the shape of the earth-moon system can be understood as a "plane shape" with the earth as the center and the moon's orbit around the earth as the plane. Our solar system has the Sun as its celestial center, with eight planets and other celestial bodies revolving around the Sun. The orbits of these eight planets are coplanar, so the shape of the solar system can also be considered a "planar shape".

Side view of the Milky Way, so what is the shape of our Milky Way? The Milky Way is a giant bar-shaped spiral galaxy, a spiral galaxy that is a huge system of celestial bodies made up of about 120 billion stars. The structure of the Milky Way is much more complex than that of the Earth-Moon or Solar System, but morphologically, the Milky Way resembles a huge disk with a "flat shape" The center of the Milky Way is the silver nucleus, which is the region with the highest star density in the Milky Way.

Stars are so dense that they look like a bright mass of matter from far away in outer space. Four spiral arms extend outward from the center, forming a spiral shape. The four arms of the Milky Way are roughly located in the same plane, and when viewed from the side, it is a flat shape.

The Moon, Solar and Milky Way are flat, and so is our universe? Our current understanding of the universe is very superficial, but it may be a "sphere" rather than a flat shape like the Milky Way. In fact, flat spiral galaxies account for only a small fraction of the total number of galaxies.

There are other types of galaxies like ellipsoidal galaxies, irregular galaxies, and lenticular galaxies.

So far, neither humans nor unmanned spacecraft have left the solar system (although five unmanned spacecraft are heading), let alone the Milky Way. So we don't have the reality of the Milky Way**. But our understanding of the structure of the Milky Way is very close.

The Epaku and Gaia satellites have observed hundreds of millions of stars in the Milky Way, measuring their bearings, distances, and movements. Using this data, astronomers can map the structure of the Milky Way with relative precision.

This is because not all stars have the same gravitational pull, so this imbalance of forces causes the Milky Way to be flattened.

It is very likely that under the action of gravity, the matter shrinks to the middle, and when it rotates, it produces centrifugal force, and when the contraction reaches a certain extent, it forms a very flat disk, so it is not round.

Because of gravity, in the most primitive time, there were many galaxies in the Milky Way, but they were all galaxies without shape and state, without regularity, and each galaxy was like dust.

The solar system and the Milky Way are subordinate. The solar system is a collection of all celestial bodies centered on the Sun and subject to the Sun's gravitational pull. The Milky Way is the galaxy where the solar system is located and belongs to the barred spiral galaxy.

The Milky Way is oblate in shape because this is the only way to maintain the dynamic equilibrium of the Milky Way. In fact, there is a huge black hole at the center of the Milky Way.

The most different thing about point 1 is that the direction of the whole galaxy is different, and the difference between the solar system and the Milky Way in point 2 is that the direction and orientation of the whole galaxy are different, the Milky Way is flattened, and its shape is not very good.

The affiliation is different, the galaxy is different, the stars are different, the star clusters are different, and the constraints are different. This is due to the oblate and circular state, which can maintain the dynamic equilibrium of the Milky Way and maintain the normal operation of the Milky Way.

How is the solar system different from the Milky Way? Why is the Milky Way flat and not round? The Milky Way is a huge system of celestial bodies containing thousands of galaxies, and the Solar System is an ordinary galaxy at the edge of the Milky Way.

At its primitive, there were many planets in the Milky Way, and they were shapeless planets, and there was no periodicity, and each planet was like dust。As a general definition, under the influence of the starry sky, the mass of matter converges towards the core. However, because of the centripetal force generated during the rotation, this kind of convergence was intercepted.

Subsequently, when the direction of the centripetal force is perpendicular to the rotation of the surface, there is no centripetal force that will block the convergence, and due to the emergence of the centripetal force, when the convergence reaches a certain level, this will be terminated, and the convergence will eventually be formed. Very flat hard drives, so the Milky Way became what we see now.

The flatness of the Milky Way may be due to the Milky Way's core, or it may be swallowed up by chemicals in some other direction。Otherwise, because there are so many planets out there, there's a good chance they've been walking around on the plane. As a result, only the center of the Milky Way rotates, and the Earth's equator emits some unknown chemicals or kinetic energy to keep the Milky Way flat.

Why the Milky Way is flat, we should discuss the spatial perspective and forces from two aspects. We all know that the middle star is very massive, and therefore very attractive. In conclusion, the surrounding space inevitably has a certain deformation.

As a result, the objects attracted to it cannot fall directly to the core. Okay, because of this cause of rotation. Subsequently, the force causes an object to agglomerate, the distortion of the region causes rotation, and the inertial force of the star or the centripetal force of the planet, i.e., the force of action, only forms a sphere.

There is a huge super-black hole at the center of the galaxy, and its attraction is focused on devouring the planet as if it were a pool of water. The amount of current will be funnel-shaped, but since the attraction point of the planet is located in the core, it is not a Brinell funnel, but an oblate shape. So that's the only way to keep the galaxy in a stable balance.

We all know that under the influence of attraction, the denser chemicals of the orbit will become larger, and then after reaching a certain point in this way, the particles of the large star cluster will be located at the corner point under the influence of the momentum moment, which will move around the center of shape, so that there will be a planar map, that is, the plane of rotation of the air cloud, but there will be a lot of particles moving from side to side. As a result, the Milky Way forms the flat shape that everyone sees.

According to our current understanding of the universe, generally massive celestial bodies are spherical. Celestial systems, no matter how large or small, seem to follow a pattern of revolving around the center of mass in a flat space. So the universe is three-dimensional, why don't they revolve around the center of mass in spherical space, and have a soft spot for flat shapes?

It has to do with how they are formed. In our solar system, for example, the planets we see today are almost all located on the same plane, orbiting the sun in a near-perfect circular orbit. In fact, the formation of the solar system was also very chaotic at the beginning.

We go back to the time when the solar system was formed 4.6 billion years ago, when the solar system was just a random nebula that spread through space, and due to the gravitational waves generated by the explosion of nearby supernovas, the example of nebulae changed, and they converged and merged with each other to form a high-density molecular cloud molecular cloud, and the internal pressure was under the influence of vibration waves. He lost his balance and began to shrink and collapse, and a large number of gas particles continued to pull into the clouds. Under the action of angular momentum, the cloud rotates faster and faster, and the centrifugal force generated by the rotation flattens the cloud.

As a large amount of matter gathers towards the center, the temperature and pressure of the center are getting higher and higher, and when the temperature and density are high enough, nuclear fusion will be triggered, and stars will be formed, that is, the sun will be formed and the sun will be very chaotic around the sun, and a large number of particles are doing irregular thermal motion, they collide with each other, and their motion energy and direction will cancel each other out. Since they do not have enough force to escape the gravitational pull, they will gradually be attracted by the gravitational pull and fall into the sun. And near the equatorial plane of the Sun, where the examples are all moving in the direction of the rotation of the clouds, the energy and gravitational pull of their motion reach a balance, and only then can they be preserved, forming a disc-shaped zone, which we manage.

This zone is called the planetary disk, and over time, the sun incorporated most of the material into the rain, and the material of the planetary disk, under the action of its own gravity, collided and condensed with each other, gradually forming planets, moons, asteroids and other celestial bodies, and finally evolved into the solar system we see now. The way the solar system is formed also applies to galaxies. All galaxies originally originated from nebulae, and as nebulae shrink toward the center, they rotate faster and faster.

In the case of a handful of particles outside the plane of rotation that collide with each other to cancel out their motion, and inhale the plane of rotation in the center, the centrifugal force is balanced with the gravitational force and is preserved, so that the galaxy appears flat rather than spherical. Now that we know that the shape of the celestial system is related to its travel, let's make a bold guess if the universe was formed in this way, would it also be flat and revolve around the center? Will it be in **?