Sun size in comparison to others. Size comparison of known planets and stars

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What happened before the Big Bang? What happened during the Big Bang? Big Bang. The Universe before and after (The existing hypothesis in science, the concept of the Big Bang) Just a few years ago, mankind considered the Universe to be a solid static structure. Now we know that this view is incredibly far from reality. In fact, the universe is a restless, ever-changing

Today we will talk about the fact that the Earth is small and the size of other huge celestial bodies in the Universe. What are the dimensions of the Earth compared to other planets and stars of the Universe.

In fact, our planet is very, very small ... compared to many other celestial bodies, and even compared to the same Sun, the Earth is a pea (a hundred times smaller in radius and 333 thousand times in mass), but there are stars in times, hundreds, thousands (!!) times larger than the Sun ... In general, we, people, and each of us especially, are microscopic traces of being in this Universe, atoms invisible to the eyes of creatures that could live on huge stars (theoretically, but , possibly in practice).

Thoughts from the film on the topic: it seems to us that the Earth is big, it really is - for us, since we ourselves are small and our body mass is negligible compared to the scale of the Universe, some have never even been abroad and in most of their lives do not leave the limits of the house, the room, and they know almost nothing about the Universe. And the ants think that their anthill is huge, but we will step on the ant and not even notice it. If we had the power to reduce the Sun to the size of a leukocyte and reduce the Milky Way proportionally, then it would be equal to the scale of Russia. And there are thousands or even millions and billions of galaxies besides the Milky Way... This is in no way fit into the minds of people.

Every year, astronomers discover thousands (or more) of new stars, planets, and celestial bodies. Space is an unexplored area, and how many more galaxies, star, planetary systems will be discovered, and it is quite possible that there are many similar solar systems with theoretically existing life. We can judge the size of all celestial bodies only approximately, and the number of galaxies, systems, celestial bodies in the Universe is unknown. However, based on known data - the Earth is not the smallest object, but far from the largest, there are stars and planets hundreds, thousands of times larger !!

The largest object, that is, a celestial body, is not defined in the Universe, since human capabilities are limited, with the help of satellites, telescopes, we can see only a small part of the Universe, and we don’t know what is there, in the unknown distance and beyond the horizons ... perhaps even more celestial bodies than those discovered by humans.

So, within the solar system, the largest object is the Sun! Its radius is 1,392,000 km, followed by Jupiter - 139,822 km, Saturn - 116,464 km, Uranus - 50,724 km, Neptune - 49,244 km, Earth - 12,742.0 km, Venus - 12,103.6 km, Mars - 6780.0 km, etc.

Several dozen large objects - planets, satellites, stars and several hundred small ones, these are only from the open ones, but there are not open ones.

The Sun is larger than the Earth in radius - more than 100 times, in mass - 333 thousand times. Here are the scales.

The Earth is the 6th largest object in the solar system, very close to the scale of the Earth Venus, and Mars is half the size.

The Earth is generally a pea compared to the Sun. And all the other planets, smaller ones, are practically dust for the Sun ...

However, the Sun warms us regardless of its size and our planet. Did you know, did you imagine, walking on mortal soil with your feet, that our planet is almost a point in comparison with the Sun? And accordingly - we are on it - microscopic microorganisms ...

However, people have a lot of pressing problems, and sometimes there is no time to look beyond the ground under their feet.

Jupiter is over 10 times the size of Earth it is the fifth planet from the Sun (classified as a gas giant along with Saturn, Uranus, Neptune).

The Earth after the gas giants is the second largest object after the Sun in the solar system, then come the rest of the terrestrial planets, Mercury after the satellite of Saturn and Jupiter.

The terrestrial planets - Mercury, Earth, Venus, Mars - planets located in the inner region of the solar system.

Pluto is about one and a half times smaller than the Moon, today it is considered a dwarf planet, it is the tenth celestial body in the solar system after 8 planets and Eris (a dwarf planet, approximately similar in size to Pluto), consists of ice and stones, the area is like South America , a small planet, however, it is also larger in scale compared to the Earth with the Sun, the Earth is still half as large in proportions.

For example, Ganymede is a satellite of Jupiter, Titan is a satellite of Saturn - only 1.5 thousand km less than Mars and more than Pluto and large dwarf planets. There are a lot of dwarf planets and satellites discovered recently, and even more stars - more than a few million, or even billions.

There are several dozens of objects slightly smaller than the Earth and half smaller than the Earth in the solar system, and those that are slightly smaller - several hundred. Can you imagine how many fly around our planet? However, to say “flies around our planet” is incorrect, because as a rule, each planet has some relatively fixed place in the solar system.

And if some asteroid flies towards the Earth, then it is even possible to calculate its approximate trajectory, flight speed, time of approach to the Earth, and with the help of certain technologies, devices (like hitting an asteroid with the help of super-powerful atomic weapons in order to destroy part of the meteorite and how a consequence of a change in speed and flight path) change the direction of flight if the planet is in danger.

However, this is a theory, so far such measures have not been applied in practice, but cases of an unexpected fall of celestial bodies on Earth have been recorded - for example, in the case of the same Chelyabinsk meteorite.

In our minds, the Sun is a bright ball in the sky, in abstraction it is some kind of substance that we know about from satellite images, observations and experiments of scientists. However, all we see with our own eyes is a bright ball in the sky that disappears at night. If we compare the size of the Sun and the Earth, then it's about like a toy car and a huge jeep, the jeep will crush the car without even noticing. So is the Sun, if it had at least a little more aggressive characteristics and an unrealistic ability to move, it would swallow everything in its path, including the Earth. By the way, one of the theories of the death of the planet in the future says that the Sun will swallow the Earth.

We are accustomed, living in a limited world, to believe only what we see and take for granted only what is under our feet and perceive the Sun precisely as a ball in the sky that lives for us in order to light the way for mere mortals, to warm us, to give us energy, in general, we use the Sun to the fullest, and the idea that this bright star carries a potential danger seems ridiculous. And only a few people will seriously think that there are other galaxies in which there are celestial objects that are hundreds, and sometimes thousands of times larger than those in the solar system.

People simply cannot comprehend in their minds what the speed of light is, how celestial bodies move in the Universe, these are not formats of human consciousness…

We talked about the sizes of celestial bodies within the solar system, about the sizes of large planets, said that the Earth is the 6th largest object in the solar system and that the Earth is a hundred times smaller than the Sun (in diameter), and 333 thousand times in mass , however, there are celestial bodies in the Universe MUCH larger than the Sun. And if the comparison of the Sun and the Earth did not fit into the consciousness of mere mortals, then the fact that there are stars in comparison with which the Sun - a ball - even more so does not fit into us.

However, according to research scientists, it is. And this is a fact, based on the data obtained by astronomers. There are other star systems where the life of the planets exists like ours, the Sun. By "the life of the planets" is meant not earthly life with people or other beings, but the existence of planets in this system. So, to the question of life in space - every year, every day, scientists come to the conclusion that life on other planets is more and more possible, but this remains only an assumption. In the solar system, the only planet close in terms of conditions to the earth is Mars, but the planets of other star systems have not been studied in full.

For example:

“It is believed that Earth-like planets are the most favorable for the emergence of life, so the search for them attracts close attention of the public. So in December 2005, scientists from the Space Science Institute (Pasadena, California) reported the discovery of a star similar to the Sun, around which rocky planets are presumably formed.

Subsequently, planets were discovered that are only a few times more massive than the Earth and should probably have a solid surface.

Super-Earths are an example of terrestrial-type exoplanets. As of June 2012, over 50 super-Earths have been found."

These super-earths are the potential carriers of life in the Universe. Although this is a question, since the main criterion for the class of such planets is more than 1 times the mass of the Earth, however, all discovered planets revolve around stars with less thermal radiation compared to the Sun, usually white, red and orange dwarfs.

The first super-Earth discovered in the habitable zone in 2007 is the planet Gliese 581 c near the star Gliese 581, the planet had a mass of about 5 Earth masses, “0.073 AU from its star. e. and is located in the area of ​​\u200b\u200bthe "life zone" of the star Gliese 581. Later, a number of planets were discovered near this star and today they are referred to as a planetary system, the star itself has a low luminosity, several tens of times less than the Sun. It was one of the most sensational discoveries in astronomy.

But back to the topic of big stars.

Below are photos of the largest objects in the solar system and stars in comparison with the Sun, and then with the last star in the previous photo.

Mercury< Марс < Венера < Земля;

Earth< Нептун < Уран < Сатурн < Юпитер;

Jupiter< < Солнце < Сириус;

Sirius< Поллукс < Арктур < Альдебаран;

Aldebaran< Ригель < Антарес < Бетельгейзе;

Betelgeuse< Мю Цефея < < VY Большого Пса

And in this list there are still the smallest stars and planets (the truly largest in this list, perhaps, is only the star VY Canis Major) .. The largest cannot even be compared to the Sun, because the Sun simply will not be visible.

The equatorial radius of the Sun, 695,700 km, is used as a unit for measuring the radius of a star.

For example, the star VV Cephei is 10 times larger than the Sun, and between the Sun and Jupiter, Wolf 359 (a single star in the constellation Leo, a faint red dwarf) is considered the largest star.

VV Cephei (not to be confused with the star of the same name with the "prefix" A) - “an eclipsing Algol-type binary star in the constellation Cepheus, which is located at a distance of about 5000 light-years from Earth. Component A is the seventh largest star known to science as of 2015 and the second largest star in the Milky Way Galaxy (after VY Canis Major).”

"Capella (α Aur / α Aurigae / Alpha Aurigae) is the brightest star in the constellation Auriga, the sixth brightest star in the sky and the third brightest star in the sky of the Northern Hemisphere."

The chapel is 12.2 times larger than the Sun in radius.

The polar star is 30 times larger than the Sun in radius. A star in the constellation Ursa Minor, located near the North Pole of the world, a supergiant of spectral type F7I.

Star Y Hounds of the Dogs is more than the Sun in (!!!) 300 times! (that is, about 3000 times larger than the Earth), a red giant in the constellation Canes Venatici, one of the coolest and reddest stars. And this is not the largest star.

For example, the star VV Cepheus A is larger than the Sun in radius by as much as 1050-1900 times! And the star is very interesting for its inconstancy and "leakage": “The luminosity is 275,000-575,000 times greater. The star fills the Roche lobe, and its matter flows to the neighboring companion. The speed of outflow of gases reaches 200 km/s. It has been established that the VV of Cepheus A is a physical variable pulsating with a period of 150 days.”

Of course, most of us will not understand information with scientific terms, if succinctly - a red-hot star losing matter. Its size, strength, brightness of luminosity is simply impossible to imagine.

So, the 5 largest stars in the Universe (recognized as such from the currently known and discovered ones), in comparison with which our Sun is a pea and a speck of dust:

- VX Sagittarius - 1520 times the diameter of the Sun. A supergiant, hypergiant, variable star in the constellation Sagittarius is losing its mass due to the stellar wind.

- Westerland 1-26 - about 1530-2544 times the radius of the Sun. A red supergiant, or hypergiant, "located in the star cluster Westerland 1 in the constellation Altar".

- Star WOH G64 from the constellation Dorado, a red supergiant of spectral type M7.5, is located in the neighboring galaxy, the Large Magellanic Cloud. The distance to the solar system is approximately 163 thousand light years. years. More than the radius of the Sun by 1540 times.

- NML Cygnus (V1489 Cygnus) is 1183 - 2775 times larger than the Sun in radius, - "a star, a red hypergiant, is located in the constellation Cygnus."

- UY of the Shield is 1516 - 1900 times greater than the radius of the Sun. Currently the largest star in the Milky Way and in the universe.

“UY Scutum is a star (hypergiant) in the constellation Scutum. Located at a distance of 9500 St. years (2900 pc) from the Sun.

It is one of the largest and brightest known stars. According to scientists, the radius of the UY Shield is equal to 1708 radii of the Sun, the diameter is 2.4 billion km (15.9 AU). At the peak of pulsations, the radius can reach 2000 solar radii. The volume of a star is about 5 billion times the volume of the Sun."

From this list we can see that there are about a hundred (90) stars much larger than the Sun (!!!). And there are such stars, on the scale of which the Sun is a grain, and the Earth is not even dust, but an atom.

The fact is that the places in this list are distributed according to the principle of accuracy in determining parameters, mass, there are approximately larger stars than UY Scutum, but their sizes and other parameters have not been established for certain, however, the parameters of this star may one day become questionable. It is clear that stars 1000-2000 times larger than the Sun exist.

And, perhaps, there are or are forming planetary systems near some, and who will give guarantees that there cannot be life there ... or not now? Wasn't there or never will be? No one… We know too little about the Universe and the Cosmos.

Yes, and even from the stars shown in the pictures - the latest star - VY Canis Majoris has a radius equal to 1420 solar radii, but the UY Shield star at the peak of the pulsation is about 2000 solar radii, and there are stars presumably more than 2.5 thousand solar radii. Such scales cannot be imagined, these are truly extraterrestrial formats.

Of course, the question is interesting - look at the very first picture in the article and at the last photos, where there are many, many stars - how does such a number of celestial bodies coexist in the Universe quite calmly? There are no explosions, collisions of these same supergiants, because the sky, from what is visible to us, is teeming with stars ... In fact, this is just the conclusion of mere mortals who do not understand the scale of the Universe - we see a distorted picture, but in fact there is enough space for everyone , and, perhaps, there are explosions and collisions, it just does not lead to the death of the Universe and even part of the galaxies, because the distance from star to star is huge.

Good afternoon dear friends.

Have you ever wondered what stars might look like compared to each other? Today I want to tell and show you what sizes space objects can reach. It is impossible to imagine how big the difference in the sizes of the planets is, it must be seen. Breaking through a huge number of pictures, I came across an image comparing our Earth and the Sun, just look at how small our planet is. But the most interesting thing is that there are stars much larger than our Sun. Let's see.

• Mercury- is the smallest planet of the terrestrial group. The radius of Mercury is 2439.7 + 1.0 km. The mass of the planet is 0.055 Earth. Area 0.147 Earth.

• Mars- surpasses only Mercury in size. The mass of the planet is equal to 10.7% of the mass of the Earth. The volume is equal to 0.15 of the volume of the Earth.

• Venus- closest to the Earth in terms of its indicators. The orbital period is 224.7 Earth days. The volume is 0.857 Earth. Mass-0.815 earth.

• Earth- the fourth largest in the list after Mercury.

• Neptune- by mass, Neptune is 17.2 times larger than the Earth.

• Uranus- slightly larger than Neptune.

• Saturn- classified as a gas giant on a par with Jupiter, Neptune and Uranus. Planet radius 57316 + 7 km. Weight-5.6846 x 1026 kg.

• Jupiter is the largest planet in the solar system. Classified as a gas giant. Planet radius 69173 + 7 km. Weight-1.8986 x 1027 kg.

• Wolf 359- the star is 2.4 parsecs or 7.80 light years away from the solar system. A faint red dwarf that is not visible to the naked eye. The mass is 0.09-0.13 solar masses. Radius - 0.16-0.19 the radius of the Sun.

• The sun is the only star in the solar system. The mass of the Sun is 99.866% of the total mass of our solar system, exceeding the mass of the Earth by 333,000 times. The diameter of the Sun is equal to 109 diameters of the Earth. Volume-1 303 600 volumes of the Earth.

• Sirius is the brightest star in the night sky. It is located in the constellation Canis Major. Sirius can be seen from any region of the Earth, except for the northernmost. Sirius is located 8.6 light years from the solar system. Sirius is twice the size of our Sun.

• Pollux is the brightest star in the constellation Gemini. Star mass 1.7 + 0.4 solar masses. The radius is 8.0 solar masses.

• Arcturus is the brightest star in the constellation Bootes. If you look up into the night sky, the second brightest star is Arcturus.

• Aldebaran is the brightest star in the constellation Taurus. Mass is 2.5 solar masses. Radius-38 the radius of the Sun.

• Rigel- the brightest star in the constellation Orion, a blue-white supergiant. Rigel is located at a distance of 870 light years from our Sun. Rigel is 68 times larger than our Sun, and the luminosity is 85,000 times stronger than the sun. Rigel is considered one of the most powerful stars in the galaxy. The mass is 17 solar masses, the radius is 70 solar radii.

• Antares- the star is located in the constellation Scorpio and is considered the brightest in this constellation. Red supergiant. Distance 600 light years. The luminosity of Antares is 10,000 times stronger than the sun. The mass of the star is 15-18 solar masses. With such a large size and such a small mass, we can conclude that the density of the star is very low.

• Betelgeuse is a red supergiant in the constellation Orion. The approximate distance to the star is 500-600 light years. The diameter of the star exceeds the diameter of the Sun by about 1000 times. The mass of Betelgeuse is equal to 20 solar masses. The star's brightness is 100,000 times that of the sun.

That's all for me, subscribe to my blog, leave your comments better here, under the article, and not on the third-party site from which you switched. If you liked the article put g +1 and tell your friends. Also join the VKontakte group

Good afternoon dear friends.

Have you ever wondered what stars might look like compared to each other? Today I want to tell and show you what sizes space objects can reach. It is impossible to imagine how big the difference in the sizes of the planets is, it must be seen. Breaking through a huge number of pictures, I came across an image comparing our Earth and the Sun, just look at how small our planet is. But the most interesting thing is that there are stars much larger than our Sun. Let's see.

• Mercury- is the smallest planet of the terrestrial group. The radius of Mercury is 2439.7 + 1.0 km. The mass of the planet is 0.055 Earth. Area 0.147 Earth.

• Mars- surpasses only Mercury in size. The mass of the planet is equal to 10.7% of the mass of the Earth. The volume is equal to 0.15 of the volume of the Earth.

• Venus- closest to the Earth in terms of its indicators. The orbital period is 224.7 Earth days. The volume is 0.857 Earth. Mass-0.815 earth.

• Earth- the fourth largest in the list after Mercury.

• Neptune- by mass, Neptune is 17.2 times larger than the Earth.

• Uranus- slightly larger than Neptune.

• Saturn- classified as a gas giant on a par with Jupiter, Neptune and Uranus. Planet radius 57316 + 7 km. Weight-5.6846 x 1026 kg.

• Jupiter is the largest planet in the solar system. Classified as a gas giant. Planet radius 69173 + 7 km. Weight-1.8986 x 1027 kg.

• Wolf 359- the star is 2.4 parsecs or 7.80 light years away from the solar system. A faint red dwarf that is not visible to the naked eye. The mass is 0.09-0.13 solar masses. Radius - 0.16-0.19 the radius of the Sun.

• The sun is the only star in the solar system. The mass of the Sun is 99.866% of the total mass of our solar system, exceeding the mass of the Earth by 333,000 times. The diameter of the Sun is equal to 109 diameters of the Earth. Volume-1 303 600 volumes of the Earth.

• Sirius is the brightest star in the night sky. It is located in the constellation Canis Major. Sirius can be seen from any region of the Earth, except for the northernmost. Sirius is located 8.6 light years from the solar system. Sirius is twice the size of our Sun.

• Pollux is the brightest star in the constellation Gemini. Star mass 1.7 + 0.4 solar masses. The radius is 8.0 solar masses.

• Arcturus is the brightest star in the constellation Bootes. If you look up into the night sky, the second brightest star is Arcturus.

• Aldebaran is the brightest star in the constellation Taurus. Mass is 2.5 solar masses. Radius-38 the radius of the Sun.

• Rigel- the brightest star in the constellation Orion, a blue-white supergiant. Rigel is located at a distance of 870 light years from our Sun. Rigel is 68 times larger than our Sun, and the luminosity is 85,000 times stronger than the sun. Rigel is considered one of the most powerful stars in the galaxy. The mass is 17 solar masses, the radius is 70 solar radii.

• Antares- the star is located in the constellation Scorpio and is considered the brightest in this constellation. Red supergiant. Distance 600 light years. The luminosity of Antares is 10,000 times stronger than the sun. The mass of the star is 15-18 solar masses. With such a large size and such a small mass, we can conclude that the density of the star is very low.

• Betelgeuse is a red supergiant in the constellation Orion. The approximate distance to the star is 500-600 light years. The diameter of the star exceeds the diameter of the Sun by about 1000 times. The mass of Betelgeuse is equal to 20 solar masses. The star's brightness is 100,000 times that of the sun.

That's all for me, subscribe to my blog, leave your comments better here, under the article, and not on the third-party site from which you switched. If you liked the article put g +1 and tell your friends. Also join the VKontakte group

It is the third largest in our galaxy - the Milky Way. Its radius is approximately equal to 1050-1900 radii.

V354 Cephei, also located in the Milky Way galaxy, is 9,000 light-years from Earth. Its radius is ≈ 1.06 billion km, which is approximately 1520 times the radius of the Sun.

KW Sagittarius is a red supergiant located in the constellation Sagittarius at a distance of about 10,000 light-years from the Sun. The radius of the star is 1460 solar.

Pistol is one of the brightest stars in our galaxy. The Pistol Star emits as much light in 20 seconds as the Sun emits in a year. It is located near the galactic center, so the distance to it is as much as 25,000 light years.

Antares is a red supergiant and the brightest star in the constellation Scorpius, which is located 600 light-years from the Sun. Its diameter is 400 times larger than the sun. If Antares were in the place of the Sun, it would go beyond the orbit of Mars, and would touch Jupiter with its crown.

Betelgeuse is a bright star located in the constellation of Orion. The distance to the star is, according to various estimates, 613-880 light years.

Aldebaran It is one of the brightest stars in the night sky. Aldebaran is located in the constellation Taurus at a distance of ≈ 65.1 light years from Earth. The radius of the star is about 38 solar diameters.

Rigel is located at a distance of about 860 light years from the Sun. The luminosity of this star is about 130,000 times that of the sun, making it one of the most powerful stars in the galaxy.

Arcturus, located in the constellation Bootes, is removed from the Earth at a distance of 36.7 light years, which is quite close in terms of cosmic scales. The radius of this star is equal to ≈25.7 of the radius of the Sun.

Pollux, located about 34 light-years from the Sun, is the brightest star in the constellation Gemini. This star is almost nine times the size of the Sun.

Sirius A and B are one of the closest stars to the Sun, the distance to them is 8.6 light years. The radius of Sirius A is 1,190,000 kilometers (the equatorial radius of the Sun is 696,392 kilometers).

Comparative sizes of the Sun when observed from other planets

Source: en.wikipedia.org

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