Perhaps this is the aphorism that YouTube user morn1415 was guided by when seven years ago he created a very original video that provides a visual representation of how the sizes of the most famous celestial bodies correlate. Now this video, which has collected a lot of rave reviews, has about 14 million views.
In this case, we are talking about the original video, we do not take into account the many versions downloaded and re-uploaded by other users. Just in case, we will give it above (suddenly someone has not seen it, but wants to see it). The subject of this particular note is the sequel to the original Star Size Comparison HD so requested by many YouTubers.
It is simply called Star Size Comparison 2 and is made in the same spirit as the original, but on a much larger scale. The starting point of comparison is the same Moon, according to left side where the smaller Pluto and Ceres are located, the closest to the Sun and the smallest among the known dwarf planets solar system.
Then, according to the knurled pattern, in order of increasing diameter, other celestial bodies follow. The star (supergiant) UY Scuti closes this parade. It is one of the largest and brightest stars known to mankind. According to scientists, the radius of UY Scuti is equal to 1708 radii of the Sun, the diameter is 2.4 billion km.
Based on the size of UY Scuti, the author of the video gives an accessible (as they say, for housewives) explanation of the concepts of daylight and light year, tells several well-known scientific facts about the universe. The video also allows you to assess the scale of the galaxy Milky Way, compare it with its nearest neighbor, the Andromeda Galaxy.
Size Comparison of Stars and Planets in the Universe #2
Recall that the Andromeda Galaxy and our Galaxy are approaching each other at a speed of 100-140 km / s, the estimated time before the collision of these two galactic systems is 3-4 billion years.
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Our solar system is made up of the sun, planets orbiting it, and smaller celestial bodies. All of these are mysterious and amazing, because they are still not fully understood. Below will be indicated the sizes of the planets of the solar system in ascending order, and briefly talk about the planets themselves.
There is everything famous list planets, in which they are listed in order of their distance from the Sun:
Pluto used to be in last place, but in 2006 it lost its status as a planet, as larger celestial bodies were found farther away. These planets are divided into stone (inner) and giant planets.
Brief information about the stone planets
The inner (stone) planets include those bodies that are located inside the asteroid belt that separates Mars and Jupiter. They got their name "stone" because they consist of various hard rocks, minerals and metals. They are united by a small number or even the absence of satellites and rings (like Saturn). On the surface of the stone planets there are volcanoes, depressions and craters formed as a result of the fall of other cosmic bodies.
But if we compare their sizes and arrange them in ascending order, the list will look like this:
Brief information about the giant planets
The giant planets are located beyond the asteroid belt and therefore they are also called outer. They consist of very light gases - hydrogen and helium. These include:
But if you make a list by the size of the planets in the solar system in ascending order, then the order changes:
A little information about the planets
In modern scientific understanding, a planet means heavenly body, which revolves around the Sun and has enough mass for its own gravity. Thus, there are 8 planets in our system, and, importantly, these bodies are not similar to each other: each has its own unique differences, as in appearance, and in the very components of the planet.
- This is the closest planet to the Sun and the smallest among the rest. It weighs 20 times less than the Earth! But, despite this, it has a sufficiently high density, which allows us to conclude that there are a lot of metals in its depths. Due to its close proximity to the Sun, Mercury is subject to sharp temperature changes: at night - extreme cold during the day the temperature rises sharply.
- This is the next planet close to the Sun, in many ways similar to the Earth. It has a more powerful atmosphere than the Earth, and is considered a very hot planet (its temperature is above 500 C).
is a unique planet due to its hydrosphere, and the presence of life on it led to the appearance of oxygen in its atmosphere. Most of the surface is covered with water, and the rest is occupied by the continents. A unique feature is the tectonic plates, which move, albeit very slowly, which leads to a change in the landscape. The Earth has one satellite - the Moon.
Also known as the "Red Planet". It gets its fiery red color from a large number iron oxides. Mars has a very rarefied atmosphere and a much smaller atmospheric pressure compared to the earth. Mars has two satellites - Deimos and Phobos.
- this is a real giant among the planets of the solar system. Its weight is 2.5 times the weight of all the planets combined. The surface of the planet is made up of helium and hydrogen and is similar in many ways to the sun. Therefore, it is not surprising that there is no life on this planet - no water and no solid surface. But Jupiter has a large number of satellites: on this moment known 67.
- this planet is famous for the presence of rings, consisting of ice and dust, revolving around the planet. With its atmosphere, it resembles that of Jupiter, and is slightly smaller in size than this. giant planet. In terms of the number of satellites, Saturn is also slightly behind - it knows 62 of them. The largest satellite, Titan, is larger than Mercury.
- the lightest planet among the outer ones. Its atmosphere is the coldest in the entire system (minus 224 degrees), it has a magnetosphere and 27 satellites. Uranus is made up of hydrogen and helium, and ammonia ice and methane have also been noted. Due to the fact that Uranus has a large axial tilt, it seems that the planet is rolling rather than rotating.
- despite being smaller than y, it is heavier than it and exceeds the mass of the Earth. This is the only planet that was found through mathematical calculations, and not through astronomical observations. On this planet, the strongest winds in the solar system were recorded. Neptune has 14 moons, one of which, Triton, is the only one that rotates backwards.
It is very difficult to imagine all the scales of the solar system within the studied planets. It seems to people that the Earth is a huge planet, and, in comparison with other celestial bodies, it is. But if you put giant planets next to it, then the Earth already takes on tiny sizes. Of course, next to the Sun, all celestial bodies seem small, so to represent all the planets in their full scale is a difficult task.
The most famous classification of the planets is their distance from the Sun. But a listing that takes into account the sizes of the planets of the solar system in ascending order will also be correct. The list will be presented as follows:
As you can see, the order has not changed much: the first lines are the inner planets, and the first place is occupied by Mercury, and the other positions are the outer planets. In fact, it doesn’t matter at all in what order the planets are located, from this they will not become less mysterious and beautiful.
The star most known to us, around which the planets revolve, will be able to fit territorially 109 Earths, focusing on the parameters, making up 99.87% of the mass of the entire solar system, but there are objects in the Universe that surpass our luminary, so comparing the sizes of stars can give a completely unexpected result.
Star sizes compared to the Sun
Of the objects known to science, the Sun ranks fourth in terms of brightness. Its mass is 333 thousand of our planets. The overwhelming majority of phenomena discovered in the Universe have a weight from 0.08 to 50 solar. The most studied objects include white dwarfs and red giants, the latter can weigh several dozen times more, but be quite small in size, which is achieved due to the increased density of the composition of matter. Let's analyze the size of the Sun compared to other stars. The information is obtained by comparing their mass and size relative to the Sun.
- Sirius. The brightest point in the sky and at the same time the closest to us. It consists of two so-called components - A + B. The area of \u200b\u200bthe first fits two luminaries, the second is slightly smaller than it.
- Pollux. Belongs to the constellation Gemini. It is one of the giants, since its weight is 1.7 times greater, the radius is 8.8.
- Arcturus. Refers to Bootes. The brightest celestial body in the northern hemisphere. It weighs as much as one and a half of the Sun, but given the circumference, you can enter as many as 26.
- Rigel. Located equatorially. It is not called a supergiant for nothing, because it is diametrically larger by 68 times, while weighing as much as 17 luminaries.
- Aldebran. Taurus Star. The mass is 2.5 Suns, the radius is 38 luminaries.
- Antares. Constellation Scorpio. Red supergiant. By weight, 15-18 of our main stars will withstand, but as many as 700 circles will fit in. Lightness plus gigantic dimensions indicate its low density.
- Betelgeuse. Like the previous specimen, it surpasses its congener significantly (18-19 times), diametrically - 1000.
- VV Cephei. The red giant is the second largest relative to our galaxy. Exceeds the luminary up to 25-40 times in weight and 1600-1900 in radius.
Comparison of planet sizes.
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 can reach space objects. 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 get a look.
- Mercury- is the smallest planet 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 of Neptune more earth 17.2 times.
- 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.
- 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- the most bright Star in the night sky. Located in the constellation Big Dog. 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.
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The sizes of objects of the Universe in comparison (photo)
1. This is the Earth! We live here. At first glance, it is very large. But, in fact, compared to some objects in the universe, our planet is negligible. The following photos will help you at least roughly imagine what just does not fit in your head.
2. The location of the planet Earth in the solar system.
3. Scaled distance between the Earth and the Moon. Doesn't look too far, does it?
4. Within this distance, you can place all the planets of our solar system, nice and neat.
5. This little green spot is the mainland of North America, on the planet Jupiter. You can imagine how much larger Jupiter is than the Earth.
6. And this photo gives an idea of the size of the planet Earth (that is, our six planets) compared to Saturn.
7. This is what the rings of Saturn would look like if they were around the Earth. Beauty!
8. Hundreds of comets fly between the planets of the solar system. This is how the Churyumov-Gerasimenko comet, on which the Philae probe landed in the fall of 2014, looks in comparison with Los Angeles.
9. But all objects in the solar system are negligible compared to our Sun.
10. This is how our planet looks from the surface of the moon.
11. This is how our planet looks from the surface of Mars.
12. And this is us from Saturn.
13. If you fly to the edge of the solar system, you will see our planet like this.
14. Let's go back a little. This is the size of the Earth compared to the size of our Sun. Impressive, isn't it?
15. And this is our Sun from the surface of Mars.
16. But our Sun is only one of the stars in the Universe. Their number is more than grains of sand on any beach on Earth.
17. And this means that there are stars much larger than our Sun. Just look how tiny the Sun is compared to the largest star VY known to date in the constellation Canis Major.
18. But no star can compare with the size of our Milky Way Galaxy. If we reduce our Sun to the size of a white blood cell and reduce the entire Galaxy by the same factor, then the Milky Way will be the size of Russia.
19. Our Milky Way Galaxy is huge. We live around here.
20. Unfortunately, all objects that we can see with the naked eye in the sky at night are placed in this yellow circle.
21. But the Milky Way is far from the largest galaxy in the universe. This is the Milky Way compared to Galaxy IC 1011, which is 350 million light-years from Earth.
22. But that's not all. Thousands and thousands of galaxies are photographed in this image from the Hubble Space Telescope, each containing millions of stars and their planets.
23. For example, one of the galaxies in the photo, UDF 423. This galaxy is ten billion light years from Earth. When you look at this photo, you are looking back billions of years.
24. This dark piece of the night sky looks completely empty. But when you zoom in, it turns out that it contains thousands of galaxies with billions of stars.
25. And this is the size of the black hole compared to the size of the Earth's orbit and the orbit of the planet Neptune.
One such black abyss could easily suck up the entire solar system.
