The most nearest galaxy to the ground. Neighboring Galaxy Andromeda

\u003e The nearest galaxy to us

What a galaxy is closest to the Milky Way: Spiral Andromeda, dwarf galaxy in a large ps, distance, map of galaxies, research with a photo.

It is worth understanding that our galaxy is not unique in terms of its formation. That is, there are still many similar, combined into specific groups. The Milky Way shelted the local group (54 of the galaxies), which acts as part. So we are not alone.

Many believe that the Galaxy Andromeda is located closest, because they are moving through the process of collision and merger. But if we talk more scientifically, then this is the nearest spiral representative. The fact is that the dwarf was open not so long ago, therefore it's time to reconsider my knowledge.

What a galaxy is closer than all

Now the dwarf galaxy in the large ps is the nearest galaxy to the Milky Way. It is distinguished from the center for 42,000 light years and on 25,000 light years from the system.

Characteristics Nearest Galaxy

It is believed that she accommodates a billion stars, many of which were transferred to the phase of the Red Giant. Formed in the form of an ellipse. In addition, a whole star thread flashes behind it. This is a complex ring-shaped structure - a ring of a unicorn, wrapped around three times.

During the study of the ring and showed this dwarf galaxy in the large ps. It is assumed that she "ate". A ball clusters approximate to its center (NGC 1851, NGC 1904, NGC 2298 and NGC 2808), once belonged to the absorbed galaxy.

Examples of galactic mergers captured by a Hubble telescope

Opening the nearest land of the Galaxy

Prior to that, they believed that the dwarf elliptic galaxy in (70,000 light years from the Earth) was in the first place in (70,000 light years). It's closer than (180000 years).

The dwarf galaxy in a large ps seemed for the first time in 2003. Astronomers checked 70% of the sky using All-Sky Survey and discovered about 5,700 celestial sources of infrared radiation. Infrared technology is incredibly important, as the red light is not blocked by gas and dust. Thus, it was possible to find a set of M-type giants in the constellation of a large PSA. Some structures formed weak arcs.

A large number of M-type stars was the reason for which the layer was found. Red dwarfs with low temperatures are inferior in brightness, so they will not be able to notice without the use of technology. But they are clearly visible in the infrared range.

The data fueled the thoughts that galaxies are capable of growing due to the absorption of smaller neighbors. Thus, our galaxy appeared Milky Way, which now continues to do it. And since the former stars of the dwarf galaxy in the big ps are now our, we can say that it is located closest.

Former winner found in 1994 (dwarf in Sagittarius). Among the nearest spirals - (m31), which hurries to us with an acceleration of 110 km / s. After 4 billion light years, a merger will occur.

What awaits the galaxy nearest to us?

Now you know that the nearest galaxy to the Milky Way is the dwarf galaxy in the large ps. But what happens to her? Scientists believe that as a result, it will break the force of the Milky Way gravity. It is noticeable that her main body was already distorted and it does not stop. Accretion will end the fact that objects are completely solved, submitting 1 billion stars to our Galaxy to 200-400 billion, which moved earlier. So a small distance to the nearest galaxy played a cruel joke with her.

Big Encyclopedic Dictionary

Overgalactic nebulae or island universes, giant star systems containing also interstellar gas and dust. The solar system enters our Milky Way Galaxy. All outer space to the limits where can penetrate ... ... Encyclopedia Color

Giant (up to hundreds billion stars) Star systems; These include, in particular, our galaxy. Galaxies are divided into elliptical (E), spiral (S) and incorrect (IR). Nearest clouds (IR) and nebula, nearest clouds and nebula ... ... encyclopedic Dictionary

Giant Star Systems, similar to our Galaxy Star System (see Galaxy), which includes a solar system. (The term "galaxies", unlike the term "Galaxy", write from the lowercase letters.) Outdated name G. ... ...

Giant (up to hundreds billion stars) star systems; These include, in particular, our galaxy. Galaxies are divided into elliptical (E), spiral (S) and incorrect (IR). Nearest clouds (IR) and nebula, nearest clouds and nebula ... ... Astronomical Dictionary

Galaxies - Giant star systems with tens of tens to hundreds of billions in each. Modern estimates give about 150 million galaxies in the metagalaxy known to us. The galaxies are divided into elliptic (designated in astronomy of the letter E), ... ... The start of modern natural science

Giant (up to hundreds billion stars) Star systems; These include, in particular, our galaxy. G. are divided into Ellip Tic. (E), spiral (S) and incorrect (IR). The nearest clouds (IR) and the nebula of Andromeda (S) coming to us. G. ... ... Natural science. encyclopedic Dictionary

Galaxy whirlpool (M51) and its NGC Satellite 5195. Photograph of the Kitt Peak Observatory. The interacting galaxies of the galaxies located in space are close enough to mutual gravity significantly in ... Wikipedia

Star systems that differ in shape from spiral and elliptic chaoticness, nursing. Sometimes there are N. G., who have no clear shape, amorphous. They consist of stars with an admixture of dust, while the majority of N. G. ... ... Great Soviet Encyclopedia

- ... Wikipedia

Books

• Galaktiki, Avedisov Veta Sergeevna, Surdin Vladimir Georgievich, Vibe Dmitry Zigfridovich. The fourth book from the series "Astronomy and astrophysics" is a presentation of modern ideas about gigantic star systems - galaxies. It is described about the history of the opening of galaxies, about their main ...
• Galaktiki, Avedisov Veta Sergeevna, Surdin Vladimir Georgievich, Vibe Dmitry Zigfridovich. The fourth book from the Astronomy and Astrophysics series contains an overview of modern ideas about gigantic star systems - galaxies. Teld about the history of the opening of galaxies, about their ...

Andromeda - Galaxy, also known as M31 and NGC224. This spiral formation located at a distance of approximately 780 kp (2.5 million from the ground.

Andromeda - Galaxy, located closest to the Milky Way. She is named after the mythical princess of the same name. The observations of 2006 made it possible to conclude that there are about three times of stars here - at least two times more than in the Milky Way, where they exist about 200 - 400 billion. Scientists believe that the collision of the Milky Way and the Galaxy Andromeda will happen after 3, 75 billion years, and as a result, a giant elliptical or disk galaxy will be formed. But more on that later. First, we learn how the "mythical princess" looks like.

The picture shows Andromeda. The galaxy has white-blue stripes. They form rings around it and cover hot hot gigantic stars. Dark blue gray stripes contrast sharply against the background of these bright rings and show areas where in dense cloud cocopters the formation of stars just begins. When observed in the visible part of the spectrum of the Andromeda rings, more like spiral sleeves. In the ultraviolet range, these formations are rather reminiscent of annular structures. They were previously discovered by the NASA telescope. Astronomers believe that these rings indicate the formation of the galaxy as a result of a collision with a neighboring more than 200 million years ago.

Andromeda satellites

Just like the Milky Way, Andromeda has a number of dwarf satellites, 14 of which have already been discovered. The most famous - M32 and M110. Of course, it is unlikely that the stars of each of the galaxies will face each other, since the distances between them are very large. The fact that will actually happen, scientists have quite vague ideas. But already invented for the future newborn name. Malkomeda - so refer to the not yet born giant galaxy science figures.

Collisions of Star

Andromeda is a galaxy, numbering 1 trillion stars (10 12), and the Milky Way - 1 billion (3 * 10 11). However, the chance of a clash of the celestial bodies is negligible, since there is a huge distance between them. For example, the procimation star closest to the Sun is at a distance of 4.2 light years (4 * 10 13 km), or 30 million (3 * 10 7) of the sun diameters. Imagine that our shine is a ball tennis ball. Then the proxima of the Centaurus will look like a pea that is 1100 km away from him, and the Milky Way itself expect sturgeon by 30 million km. Even stars in the center of the Galaxy (namely there their greatest accumulation) are located with intervals of 160 billion (1.6 * 10 11) km. It is like one table tennis ball every 3.2 km. Therefore, the chance that some two stars will face with a merger of galaxies, extremely small.

Collision of black holes

Andromeda Galaxy and Milky Way are central Sagittarius A (3.6 * 10 6 of the mass of the Sun) and an object inside P2 of the galactic kernel. These black holes will comply at one point near the center of the newly formed galaxy, passing the orbital energy to the stars, which will be shifted over time to higher trajectories. The process described above may take millions of years. When black holes approach the distance of one light year from each other, they will begin to emit gravitational waves. The orbital energy will become even more powerful until the merger is complete completely. Based on the modeling data carried out in 2006, the Earth may first be thrown away to almost the very center of the newly formed galaxy, then it will take about one of the black holes and will be eves the milemound.

Confirmation theory

Andromeda galaxy is approaching us at a speed of about 110 km per second. Up to 2012, there were no ways to find out if a collision will occur or not. It is possible to conclude that it is almost inevitable, the scholars helped the Hubble Space Telescope. After tracking the movements of Andromeda from 2002 to 2010, it was concluded that the collision would happen about 4 billion years.

Similar phenomena are widespread in space. For example, it is believed that Andromeda in the past interacted at least with one galaxy. And some dwarf galaxies, such as Sagdeg, and now continue to face the Milky Path, creating a single education.

Studies also show that M33, or the galaxy of the triangle, is the third size and brightest representative of the local group - will also participate in this event. The most likely of her fate will be at the orbit of the object formed after the confluence of the object, and in the distant future - the final association. However, the collision of M33 with the Milky way earlier than Andromeda approached, or our solar system will be thrown out of the local group, excluded.

Fate of the solar system

Scientists from Harvard argue that the deadlines for the combination of galaxies will depend on the tangential velocity of Andromeda. Based on the calculations, they concluded that there is a 50% chance that when merging the solar system will be thrown over a distance, three times higher than the current to the center of the Milky Way. It is not for sure that the Galaxy Andromeda behaves himself. Planet Earth is also under threat. Scientists say 12% of the likelihood that we will be discarded from our former "house after a collision after a collision. But this event, most likely, will not produce severe adverse effects on the solar system, and the celestial bodies will not be destroyed.

If we exclude planetary engineering, then by the time the surface of the Earth will grow strongly and water will remain in liquid state, which means life.

Probable side effects

When two spiral galaxies are combined, hydrogen, which is present on their disks is compressed. Strengthened education of new stars. For example, this can be observed in the interacting Galaxy NGC 4039, otherwise known as "antennas". In the event of a merger of Andromeda and the Milky Way, it is believed that gas on their disks will remain a little. Star formation will not be so intense, although it is quite likely to the birth of a quasar.

Fusion result

The galaxy formed during the merger, scientists are pre-called Melecomed. The modeling result indicates that the resulting object will be elliptic form. Its center will have a smaller density of stars than modern elliptic galaxies. But the disk form is also likely. Much will depend on how much gas will remain within the Milky Way and Andromeda. In the near future, the remaining surrenders in one object, and this will mean the beginning of a new evolutionary stage.

Facts about Andromeda

• Andromeda is the greatest galaxy in the local group. But probably not the most massive. Scientists suggest that in the Milky Way focused more and that makes our galaxy more massive.
• Science figures are investigating Andromed to understand the origin and evolution of similar formations, because this is the nearest spiral galaxy to us.
• Andromeda from the ground looks amazing. Many people even manage to take a picture.
• Andromeda has a very dense galactic core. Not only huge stars are located in its center, but also at least one supermassive black hole hidden in the core.
• Her spiral sleeves were twisted as a result of gravitational interaction with two neighboring galaxies: M32 and M110.
• Inside Andromeda, at least 450 ball star clusters are treated. Among them are some of the most dense that managed to detect.
• Andromeda Galaxy is the most remote object that can be seen with the naked eye. You will need a good viewing point and a minimum of bright light.

In conclusion, I would like to advise readers more often raise your gaze on the starry sky. It keeps a lot of new and unexplored. Find some free time to watch space on weekends. Andromeda Galaxy in the sky - the sight, which is certainly worth seeing.

What is the distance to the nearest galaxy? March 12th, 2013

Scientists were first able to measure the exact distance to the nearest galaxies from us. This dwarf galaxy is known called Large Magellanovo cloud. It is located from us at a distance of 163 thousand light years or 49.97 kiloparsk, if you are accurate.

Galaxy Large Magellanovo cloud slowly floats in outer space, bypassing our galaxy Milky Way Around how the moon rotates around the Earth.

Huge gas clouds in the Galaxy area are slowly dissipated, as a result of which new stars are formed, which illuminates the interstellar space with their light, creating bright colorful cosmic landscapes. These landscapes were able to capture a space telescope in the photo "Hubble".

Small galaxy Large Magellanovo cloud includes Tarantula nebula - the bright star cradle in space next door to us - it is noticed signs of education for new stars.

Scientists were able to make calculations, watching rare close couples of stars known as double Stars. These pairs of stars are gravitationally connected with each other, and when one of the stars overshadowed another, as can be seen by the observer from the ground, the overall brightness of the system is reduced.

If you compare the brightness of the stars, you can with incredible accuracy to thus calculate the exact distance to them.

The definition of the exact distance to the space objects is very important for understanding the size and age of our universe. While the question remains open: what is the size of our universe, none of the scientists can not say yet.

After the astronomers managed to achieve such accuracy in the definition of distances in space, they will be able to do more distant objects and, ultimately, will be able to calculate the size of the universe.

Also, new features will allow more accurately determine the expansion rate of our universe, as well as more accurately calculate permanent Hubble. This coefficient was named after Edwin P. Hubble, an American astronomer, which in 1929 proved that our universe is constantly expanding from the very beginning of its existence.

Distance between galaxies

Galaxy Large Magellanovo cloud - the dwarf galaxy closest from us, but large in size by the galaxy - our neighbor is considered spiral Galaxy Andromedawhich is from us at a distance of about 2.52 million light years.

The distance between our galaxy and the Galaxy Andromeda is gradually reduced. They are approaching each other at a speed of about 100-140 kilometers per second, although they will meet very soon, or rather, in 3-4 billion years.

Perhaps this is how the night sky for the earth observer will look like several billion years

Distances between galaxies, therefore, can be very different at different stages of time, as they are constantly in dynamics.

The scale of the universe

The visible universe has an incredible diameter in size, which is billions, and there may be tens of billions of light years. Many objects that we can see with the help of telescopes have no longer exist or look quite different, because the light before them was incredibly long.

The proposed series of illustrations will help you to imagine at least in general terms of our universe.

Solar system with its largest objects (planets and dwarf planets)

Sun (center) and the nearest stars

Galaxy Milky Way with an indication of the group nearest from the solar system of stellar systems

The group of nearest galaxies, which includes more than 50 galaxies, the number of which is constantly increasing as new ones.

Local supercountability of galaxies (ultra-secure Virgin). Size - about 200 million light years

Group of supercountable galactic

Visible universe

The galaxy is called large formation of stars, gas, dust, which are held together by gravity. These largest compounds in the Universe may differ in form and sizes. Most of the space objects are part of a certain galaxy. These are stars, planets, satellites, nebulae, black holes and asteroids. Some of the galaxies have a large number of invisible dark energy. Due to the fact that the galaxies share empty outer space, they are figuratively called oases in the cosmic desert ..

Our galaxy

The nearest star to us the sun refers to a billion stars in the Milky Way Galaxy. Looking at the night starry sky, it is hard not to notice a wide strip, covered with stars. The accumulation of these stars Ancient Greeks called the Galaxy.

If we had the opportunity to look at this star system from the side, we would notice a flattened ball in which there are over 150 billion stars. Our galaxy has such dimensions that hard to imagine in their imagination. Light Light travels from one side to another hundred thousand of earthly years! The center of our galaxy occupies the kernel, from which huge spiral branches filled with stars. The distance from the Sun to the galaxy kernel is 30 thousand light years. The solar system is located on the outskirts of the Milky Way.

Stars in the Galaxy Despite the huge accumulation of cosmic bodies are rare. For example, the distance between the nearest stars are tens of millions times the diameters. It is impossible to say that the stars are scattered in the universe chaotically. Their location depends on the gravity forces that hold the heavenly body in a certain plane. Star systems with their gravitational fields and are called galaxies. In addition to stars, the Galaxy includes gas and interstellar dust.

The composition of galaxies.

The universe is also many other galaxies. The most close to us are distant to the distance of 150 thousand light years. They can be seen in the sky of the southern hemisphere in the form of small foggy specks. For the first time, they were described by the participant of the Magellan Expedition around the world of Pigafette. They entered into science called the big and small magtellane clouds.

The closer to us is a galaxy called Andromeda Nebula. It has very large sizes, so it is visible from the ground to ordinary binoculars, and in clear weather - even with a naked eye.

The structure of the galaxy itself resembles a gigantic convex in the spiral space. On one of the spiral sleeves for ¾ distances from the center there is a solar system. Everything in the galaxy is spinning around the central kernel and subordinate to its gravity. In 1962, an astronomer of Edwin Hubble was a classification of galaxies depending on their form. All galaxies scientist divided into elliptical, spiral, incorrect and galaxies with a jumper.

In part of the Universe, available for astronomical studies, billions of galaxies are located. In the aggregate of their astronomers call the metagalaxy.

Galaxies of the Universe

Galaxies are represented by large groups of stars, gas, dust held together by gravity. They can differ significantly in shape and sizes. Most space objects belong to any galaxy. These are black holes, asteroids, stars with satellites and planets, nebulae, neutron satellites.

Most universe galaxies include a huge amount of invisible dark energy. Since the space between different galaxies is considered void, they are often called oases in the void of space. For example, a star named the Sun is one of the billion stars in the Galaxy "Milky Way" located in our Universe. In the distance from the center of this helix there is a solar system. In this galaxy everything is continuously moving around the central kernel, which submits its gravity. However, the kernel is also moving along with the galaxy. At the same time, all galaxies move at super-speed.
Astronomer Edwin Hubble in 1962 conducted a logical classification of the Galaxy of the Universe, taking into account their form. Now the galaxies are divided into 4 main groups: elliptic, spiral, galaxies with a bar (jumper) and incorrect.
What is the biggest galaxy in our universe?
The largest galaxy in the universe is a leinzoidal galaxy of supergiangic sizes, which is in the accumulation of ABELL 2029.

Spiral galaxies

They are galaxies that, in shape, resemble a flat spiral disk with a bright center (core). Milky Way - Typical Spiral Galaxy. Spiral galaxies are customary with the letter S, they are divided into 4 subgroups: SA, SO, SC and SB. The galaxies belonging to the SO group are distinguished by light cores that do not have spiral sleeves. As for the SA galaxies, they are distinguished by dense spiral sleeves, tightly wrapped around the central kernel. SC and SB Galaxies Sleeves rarely surround the kernel.

Spiral galaxies of the Massa catalog

Galaxies with jumper

Galaxies with a bar (jumper) are similar to spiral galaxies, but still have one difference. In such galaxies, the spirals begin not from the nucleus, but from the jumpers. About 1/3 of all galaxies are included in this category. They are accepted to signify the letters SB. In turn, they are divided into 3 subgroups of SBC, SBB, SBA. The difference between these three groups is determined by the shape and length of the jumpers, from where, in fact, the sleeves of the spirals begin.

Spiral galaxies with a messenger jumper

Elliptical galaxies

The form of galaxies can vary from perfectly round to the elongated oval. Their distinctive feature is the lack of a central bright nucleus. They are denoted by the letter E and are divided into 6 subgroups (in form). Such forms are denoted from E0 to E7. The first have almost a round shape, while E7 are characterized by an extremely elongated form.

Elliptical galaxies of the Massa catalog

Wrong galaxies

They do not have any pronounced structure or shape. Incorrect galaxies are made to divide into 2 classes: IO and IM. The most common is a class of galaxies (it has only a slight hint of the structure). In some cases, spiral residues are traced. Io refers to the class of galaxies, chaotic in shape. Small and large magtels clouds are a bright example of IM class.

Incorrect galaxies of the Massa catalog

Table Characteristics of the main types of galaxies

Large portrait of galaxies

Not so long ago, astronomers began to work on a joint project to identify the location of galaxies in the entire Universe. Their task is to get a more detailed picture of the overall structure and form of the universe on a large scale. Unfortunately, the scale of the universe is difficult to evaluate for understanding by many people. Take at least our galaxy consisting of more than one hundred billion stars. In the Universe there are still billions of galaxies. Far galaxies were found, but we see their light that was almost 9 billion years ago (we are separated by such a long distance).

Astronomers became known that most galaxies refer to a certain group (it began to call "cluster"). The Milky Way is part of the cluster, which, in turn, consists of forty-known galaxies. As a rule, most of these clusters are represented by a part of an even greater grouping, which is called supercountable.

Our cluster is a part of the supercount that is called by the cluster of the Virgin. Such a massive cluster consists of more than 2 thousand galaxies. At the time when astronomers have created a galaxic data map, super-consuming began to take a specific form. Large supercountments gathered around what it seems like giant bubbles or voids. What is this structure, no one else knows. We do not understand what can be inside these voids. By assumption, they can be filled with a certain type of unknown scientist dark matter or have inside empty space. Before we find out the nature of such voids, there will be a lot of time.

Galactic calculations

Edwin Hubble is the founder of galactic studies. He is the first one who managed to determine how to calculate the exact distance to the galaxy. In his research, he relied on the method of pulsating stars, which are better known as cepheids. The scientist was able to notice the relationship between the period, which is needed to complete one brightness pulsation, and the energy that the star highlights. The results of his studies have become a serious breakthrough in the field of galactic studies. In addition, he discovered that there is a correlation between the red spectrum, the radiated galaxy, and the distance to it (constant Hubble).

In our time, astronomers can measure the distance and speed of the galaxy by measuring the amount of red displacement in the spectrum. It is known that all the galaxies of the Universe are moving apart from each other. The further the galaxy is from the ground, the greater its speed.

To visualize this theory, it is enough to imagine yourself driving a car that moves at a speed of 50 km per hour. You are driving a car faster than 50 km per hour, which suggests that his speed of his movement is 100 km per hour. There is one more car in front of it, which moves faster than another 50 km per hour. Despite the fact that the speed of all 3 cars will be different by 50 km per hour, the first car actually moves from you 100 km per hour faster. Since the red spectrum indicates the speed of movement of the galaxy from us, the following is: the greater the red displacement, the more, respectively, the galaxy is moving faster and the greater the distance from us.

Now we have new tools that help scientists in search of new galaxies. Thanks to the Space Telescope, Hubble, scientists managed to see what was just before dreamed. The high power of this telescope provides good visibility of even small parts in the neighboring galaxies and allows you to study more distant, which have not yet been known to anyone. Currently, new cosmos observation tools are under development, and in the near future they will help to get a deeper understanding of the structure of the Universe.

Types of galactic

• Spiral galaxies. The form resemble a flat spiral disc with a pronounced center, the so-called kernel. Our Galaxy Milky Way belongs to this category. In this section of the portal site you will meet many different articles with the description of the space objects of our galaxy.
• Galaxies with a jumper. They resemble spirals, they differ from them with one significant difference. Spirals are not separated from the nucleus, but from the so-called jumpers. This category includes a third of all the Galaxies of the Universe.
• Elliptic galaxies have various forms: from a thoroughly round up to ovally elongated. Compared with spirals, they have no central pronounced core.
• Improper galaxies do not have a characteristic form or structure. They cannot be attributed to any of the types listed above. Incorrect galaxies have a much smaller amount on the expanses of the universe.

Astronomers have recently launched a joint project to identify the location of all galaxies in the universe. Scientists hope to get a more visual picture of its structure on a large scale. The size of the universe is hard to appreciate human thinking and understanding. Only our galaxy is a combination of a hundred billion stars. And there are billions of such galaxies. We can see the light from found distant galaxies, but do not even mean what we look into the past, because the light ray comes to us for tens of billions of years, it shares us so a great distance.

Astronomers also tie most of the galaxies to certain groups that are called clusters. Our Milky Way belongs to the cluster, which consists of 40 explored galaxies. Such clusters are combined into large groups called supercountable. The cluster with our galaxy is included in the supercountability of the Virgin. The composition of this gigantic cluster is more than 2 thousand galaxies. After scientists began to draw a map of the placement of data of galaxies, ultra-consuming received certain forms. Most of the galactic superclauses surrounded gigantic emptiness. No one knows what can be inside these voids: the outer space like the interplanetary or a new form of matter. It will take a lot of time to reveal this mystery.

The interaction of galactic

No less interesting for the gaze of scientists is the question of the interaction of galaxies as components of space systems. It is no secret that space objects are in constant motion. Galaxies are no exception to this rule. Some of the types of galaxies could cause a collision or merger of two space systems. If you understand what the data is presented with space objects, large-scale changes are becoming more understandable as the result of their interaction. During the collision of two space systems, a gigantic amount of energy splashes. Meeting of two galaxies on the universes of the Universe - even more likely event than colliding two stars. Not always a collision of galaxies ends with an explosion. A small space system can freely pass by its larger counterpart by changing only its structure only.

Thus, the formation of formations similar to the appearance of elongated corridors occurs. Stars and gas zones are highlighted in their composition, new luminaries are often formed. There are cases that the galaxies do not hit, but only slightly come into contact with each other. However, even such interaction launches a chain of irreversible processes that lead to huge changes in the structure of both galaxies.

What future will expect our galaxy?

As scientists suggest, it is possible that in the distant future, the Milky Way will be able to absorb tiny space-satellite system, which is located from us at a distance of 50 light years. Studies show that this satellite has a long life potential, but when a collision with a gigantic neighbor is likely to complete a separate existence. Also astronomers predict the collision of the Milky Way and the nebula of Andromeda. Galaxies move towards each other at the speed of light. Prior to the likely collision to wait about three billion earthly years. However, whether it is actually now - it is hard to argue due to the lack of data on the movement of both space systems.

Description GalaktikaKvant.. Space.

The site portal will take you to the world of interesting and fascinating space. You will learn the nature of the construction of the Universe, familiarize yourself with the structure of famous large galaxies, their constituents. Reading articles about our galaxy, we become more understandable some of the phenomena that can be observed in the night sky.

All galaxies from the ground are at a huge distance. Only three galaxies can be seen with the naked eye: large and small magtellane clouds and the nebula of Andromeda. All galaxies do not count unreal. Scientists assume that their number is about 100 billion. The spatial location of the galaxies is unevenly - one area may contain a huge amount of their number, in the second one will not be at all a small galaxy. Separate the image of galaxies from individual stars astronomers failed to the beginning of the 90s. At that time there were about 30 galaxies with individual stars. All of them were counted to the local group. In 1990, a majestic event was held in the development of astronomy as science - a Hubble telescope was launched into the Earth's orbit. It is this technique, as well as new terrestrial 10-meter telescopes allowed to see a significantly larger number of allowed galaxies.

To date, the "astronomical minds" of the world break their heads about the role of dark matter in the construction of galaxies, which manifests itself only in gravitational interaction. For example, in some large galaxies, it is about 90% of the total mass, while dwarf galaxies may not contain it at all.

Evolution of Galaktik

Scientists believe that the emergence of galaxies is the natural stage of the evolution of the universe, which was underway under the influence of gravity forces. Approximately 14 billion years ago the formation of protector in the primary substance began. Further, under the influence of various dynamic processes, galactic groups were allocated. The abundance of forms of galaxies is explained by the diversity of the initial conditions in their formation.

The compression of the galaxy takes about 3 billion years. During this period, the gas cloud turns into a star system. The formation of stars occurs under the influence of gravitational compression of gas clouds. After reaching a certain temperature and density in the center of the cloud, a new star is formed. Massive stars are formed from thermonuclear chemical elements, by the mass of superior helium. These elements create a primary helium-hydrogen medium. During the grand explosions of supernovae, elements are formed, harder than iron. It follows from this that the galaxy consists of two generations of stars. The first generation is the most old stars consisting of helium, hydrogen and a very small amount of heavy elements. The second generation stars have a more noticeable impurity of heavy elements, since they are formed from the primary gas enriched with heavy elements.

In modern astronomy, galaxies as space structures are given a separate place. In detail, types of galaxies, features of their interaction, similarities and differences are being studied, their future is made. This area contains many more incomprehensible, which requires additional study. Modern science has decided a lot of questions regarding the types of building galaxies, but there are also many white spots associated with the formation of these space systems. Modern rates of modernization of research equipment, the development of new methodologies for the study of cosmic bodies give hopes for a significant breakthrough in the future. One way or another, the galaxies will always be at the Center for Scientific Research. And it is based not only on human curiosity. After receiving data on the patterns of development of space systems, we will be able to predict the future of our galaxy called the Milky Way.

The most interesting news, scientific, author's articles on the study of galaxies will provide you with the portal site. Here you can find exciting videos, high-quality pictures from satellites and telescopes that do not leave indifferent. Immerse yourself in the world of unknown space with us!