How many solar systems are there in the Milky Way and how many suns are there in the Milky Way

The total mass of the Milky Way is about 100 billion solar masses, and if the average mass of stars is similar to that of the Sun, there are about 100 billion stars in the Milky Way. In fact, the number of dwarf stars with masses smaller than the Sun in the Milky Way far exceeds those with masses greater than the Sun, so the total number of stars in the Milky Way is estimated to be about 1500-200 billion.

However, not all of these 200 billion or so stars have their own planetary systems, that is, many stars do not have their own galaxies, such as the following:

Binary, concentrating: If a binary star or cluster star is in close proximity to the other star, it will almost certainly not have a planetary system, because the strong stellar gravitational pull can change the orbit of the planet, causing the planet to fly outside the star system or fall into the star. Of course, if the binary star is farther away, or if one of the stars is farther away from the center of the cluster, it may still have its own star system.

Nebulous stars, infrared stars: These stars are still in the "embryonic" stage of stars, and the stars in the nebula disk have not yet converged and formed, so they cannot be called star systems.

Eruptive Variables: Even if they are not supernovae eruptions, these variable stars emit enough energy to destroy all the planets around them.

Stars near the center of the Milky Way: Due to the gravitational pull of the center of the Milky Way, it is difficult to maintain their own planetary system.

In general, it is currently possible by default to have planets and make up star systems with stars as the main sequence stars. Among them, F-type and G-type stars are the focus of astronomical research, because F-type and G-type stars are similar to the Sun, and if they have a planetary system, life may appear.

How many galaxies are there in the Milky Way?

There is only 1 solar system in the Milky Way. The Milky Way is the star system in which the solar system is located, including 1500 400 billion stars and a large number of star clusters, nebulae, as well as various types of interstellar gas and interstellar dust, black holes, and its total visible mass is 210 billion times the mass of the Sun.

The main part of the Milky Way's matter makes up a thin disk called a silver disk. The almost spherical part of the central bulge of the silver disk is called the nuclear sphere, and the stars are highly dense in the nuclear sphere region.

There is a small dense zone in the center of the nuclear sphere called the silver nucleus. Outside the silver disc is a larger, nearly spherical region in which the density of matter is much lower than in the silver disk, called the silver halo. There is also a silver crown on the outside of the silver halo, and its material distribution is also roughly spherical.

Milky WayThere are about 200 billion suns.

The Milky Way, with a total mass of about a trillion times that of the Sun, belongs to the local group of galaxies, and the nearest extragalactic galaxy is the Dwarf Canis Major galaxy 10,000 light-years away.

The Milky Way is an oblate sphere with a massive disk structure consisting of a bright and dense core, two major spiral arms, and two unformed spiral arms, which are 4,500 light-years apart. The Sun is located on one of the Milky Way's arms, the Orion Arm, to the heart of the silver.

The distance is about 10,000 light-years.

The solar system is a collection of celestial bodies centered on the Sun and subject to the Sun's gravitational constraints. Including the eight planets.

In order from near to far from the Sun: Mercury.

Venus, Earth, Mars, Jupiter.

Saturn, Uranus, Neptune), and at least 173 known moons, five identified dwarf planets, including four Kuiper Belt objects, and hundreds of millions of small bodies in the solar system, and comets.

Broadly speaking, the realm of the solar system includes the Sun, four inner planets like Earth, and an asteroid belt made up of many asteroids.

Four huge outer planets made of gas and small celestial bodies filled with small frozen rocks known as the Kuiper Belt. Among them, there are currently eight planets in the solar system, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

The center of the Milky Way is a huge black hole, the light we can see with the naked eye, are composed of stars revolving around the center, scientists estimate that there are 200 billion, equivalent to 200 billion solar systems, its mass, is only the skin of the Milky Way, 200 billion solar systems are only equivalent to the dust of the Milky Way or [electron star]. The huge mass is in the center, and science has observed that black holes can swallow countless solar systems, and even light cannot escape, with extremely high density and amazing mass. Comparing the nuclei of atoms, it is conceivable that the central mass of the Milky Way may also be more than 99% of the entire Milky Way.

So, let's just say that the celestial bodies revolving around the center of the Milky Way are equivalent to 200 billion solar systems.

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Black hole. The black hole at the center of the Milky Way galaxy is not yet explorable and should never be explored, referring to the observed black hole conjecture.

There are at least 100 billion galaxies the size of the Milky Way in the universe. And the Milky Way itself has 200 billion solar systems.

There is one sun in the Milky Way, the sun is a star close to the earth, the sun is the only star that can provide light energy and heat to the earth, if it is a celestial body like the sun, there are hundreds of billions, the sun is the center of gravity in the solar system, and the current life span of the sun is 100 million years.

There is one sun in the Milky Way, which is the closest star to the Earth, constantly providing light energy and heat to the Earth, but there are hundreds of billions of celestial bodies like the Sun. The Sun is the central celestial body in the solar system, which occupies the total mass of the solar system, and the eight planets all revolve around the sun.

The Sun is a star at the center of the Solar System, orbiting the center of the Milky Way, and the current life span of the Sun is about 100 million years, and after about 506 billion years, the hydrogen element in the Sun's interior will be almost completely depleted.

Different stars have different lifespans, the smaller their mass, the slower the fusion reaction, but the longer they burn, they can live up to 10 billion years for planets with a similar mass to the Sun, and hundreds of billions of years for planets with only one-tenth the mass of the Sun.

How many galaxies are there in the Milky Way?

First of all, strictly speaking, the solar system cannot be called a galaxy, the Milky Way itself is a galaxy.

Generally speaking, every star like the Sun corresponds to a "solar system", and there are about 100 billion stars in the Milky Way, which means that there are 100 billion such "solar systems".

The Milky Way is the star system in which the solar system is located, including one or two hundred billion stars and a large number of star clusters, nebulae, and various types of interstellar gas and interstellar dust. The Milky Way contains about 200 billion solar systems.

Milky WayThe Milky Way is the galaxy to which the Earth and the Sun belong. Because of the bright band projected on the celestial sphere by its main part, it is called the Milky Way by our country.

There are more than 200 billion stars in the Milky Way. The Milky Way looks like a large disk with a slightly bulging center, with a diameter of about 100,000 light-years, and the Sun is located at the center of the Milky Way. The drum is a silver heart is a dense area of perseverance, so it looks at a white expanse.

The Milky Way looks like a giant whirlpool with four spiral arms. The solar system is located in one of the spiral arms (the Orion arm) and rotates counterclockwise (it takes 100 million years for the Sun to revolve around the galactic core).

The Milky Way is a barred spiral galaxy where the solar system is located, much larger than the solar system, and the total mass of the Milky Way is about a trillion times that of the sun, so how many solar systems are there in the Milky Way? Below byKnowledge of horoscopesThere is only one celestial body in the Milky Way called the Sun, which is the closest star to the Earth, and it constantly provides light and heat to the Earth. And if there are as many celestial bodies as the Sun in the Milky Way, there are as many as 100 billion.

Celestial bodies that can export energy for a long time through nuclear fusion reactions (at first, hydrogen fusion) are called stars, and in the solar system, only the sun is a star. Compared to most non-stellar objects (e.g., planets, asteroids, comets), stars have a much larger mass. You know, if you add up all the celestial bodies in the solar system except the sun, their total mass is only that of the sun.

Stars were originally born from nebulae through gravitational collapse, and they aggregated enough material to have enough mass to trigger a nuclear fusion reaction of hydrogen in the core. The main element of the star is hydrogen, which accounts for about 75% of the mass; The secondary element is helium, which accounts for about 25% by mass; The other elements account for a very small proportion. Stars of different masses have different lifetimes, and if the mass of the star is smaller, the slower the rate at which they can carry out nuclear fusion reactions, and the slower the rate at which they consume nuclear fusion fuel, so they can burn for a longer period of time.

For a star with a mass comparable to the Sun, its lifetime is about 10 billion years. Red dwarfs with a mass of only one-tenth the mass of the Sun can live hundreds of billions of years. And those massive stars that are tens or even hundreds of times more massive than the Sun have a short lifespan of tens of millions of years.

In addition, stars of different masses will eventually have different endings. Medium- and low-mass stars with less than 8 solar masses will eventually evolve into white dwarfs. For more massive stars, they have a rather dramatic end, they will violently** and evolve into supernovae, while the core will collapse into a neutron star or even a black hole (depending on the mass).

It is estimated that the total number of stars in the Milky Way is between 100 billion and 400 billion, most of which are concentrated near the center of the Milky Way. Although the Sun is classified as a low- to medium-mass star, the mass of the Sun is actually more than 95% of the stars, as most of them have very small masses. At night, the stars we see with the naked eye are almost entirely stars.

These visible stars are almost all more massive than the Sun, and they are very close to us, most of them only a few hundred light-years away. Because only stars that are bright enough and close enough can be seen by the naked eye, there are many faint stars that are invisible to the naked eye.

The Milky Way has only one solar system, but there are one or two hundred billion star systems similar to the solar system. There is only one celestial body in the Milky Way called the Sun, which is the closest star to the Earth, and it constantly provides light and heat to the Earth.

Just as there is only one earth among the eight planets in the solar system, there is only one solar system in the Milky Way, and the galaxies generated by other stars can only be called star systems at present, and only in the future human beings will be named separately according to the degree of mastery, so as to have a difference between you and me. In order not to confuse the public, no other star system in the universe can be called a solar system, which means that there is a solar system in the Milky Way.

In terms of size, the solar system is only one of the many star systems in the Milky Way, with a diameter of less than 1 light-year, while the Milky Way is about a billion light-years in diameter, including 400 billion stars and a large number of star clusters, nebulae, and various types of interstellar gas and interstellar dust.

Positionally, the Milky Way is a barred spiral galaxy consisting of two main spiral arms and two unformed spiral arms, 4,500 light-years apart. The solar system is located on one of the supporting arms, the Orion Arm, and the distance to the center of the Milky Way is about 10,000 light-years, almost to the edge of the Milky Way, and it takes 100 million years for the Solar System to revolve around the Milky Way.