The volume of the Sun is several times that of the Earth 5

One and three hundred thousand times.

The Sun is the most striking object in the sky, it is a star located in the center of the solar system, and its apparent magnitude is equal (the magnitude of the star is divided according to the amount of stellar light received on the Earth is called "apparent magnitude", and the brightness decreases with the increase of the magnitude number, with a star of zero magnitude being brighter than a star of first magnitude and a star of negative magnitude being brighter than a star of magnitude zero), which is 500,000 times brighter than the Moon (the Moon has an apparent magnitude of 12 8). The diameter of the Sun is 1.39 million kilometers, which is 109 times that of the Earth and 400 times that of the Moon. The Sun is 1.3 million times the volume of the Earth, 330,000 times the mass of the Earth, and has an average density of 3 centimeters.

The Sun weighs 270 times more than the Moon, and the Sun is like an elephant to an ant compared to the Moon. The distance between the Sun and the Earth is 100 million kilometers, which is 400 times the distance from the Moon to the Earth. The Sun is a red-hot ball of gas, rising from the surface to the center, with a central area of about 16 million degrees Celsius and 300 billion atmospheres.

In the center of high temperature and high pressure, a huge nuclear reaction zone is formed, its composition is hydrogen and helium, and when hydrogen is converted into helium, a huge amount of energy can be released, which is the nuclear fusion reaction. The energy released in the nuclear fusion reaction is radiated to the surroundings in the form of electromagnetic waves, which is often referred to as solar radiation. Five billion years ago, since the day the sun was formed, it has been releasing enormous amounts of energy without interruption, and it is estimated that this state will continue for another 5 billion years.

The surface of the sun visible to the naked eye is the "photosphere", the periphery of the "photosphere" is the "chromosphere", and the outermost layer is the "corona", which make up the atmosphere of the sun. The Sun also has a rotational and orbital motion, and the rotation period is about 25 days in the solar equatorial zone and about 35 days in the polar region; The orbital period (the period that orbits the galactic core) is about 100 million years (assuming that the orbital eccentricity is zero).

The diameter of the Sun is 10,000 kilometers, which is 109 times that of the Earth; The volume of the Sun is 14.1 billion cubic kilometers, which is 1.3 million times that of the Earth; The mass of the Sun is about 200 billion trillion tons, which is 330,000 times that of the Earth. It concentrates the mass of the solar system and is an absolute supreme "king". However, in the universe, it is still just an ordinary star of medium mass.

If the sun is the size of a watermelon, the earth is the size of a sesame seed.

The volume of the Sun is about 1.3 million times the volume of the Earth, but as the Sun ages, it will grow larger and larger in the future, and in old age, its volume will increase by nearly 100 million times on the current basis, which will be equivalent to the volume of 100 trillion Earths.

Effects of solar activity on the Earth:

1. Aurora phenomenon.

In the polar regions close to the Earth, it is common to see colorful and varied bands of light shining in the sky at night, which is called the aurora. Aurora is a high-energy physical phenomenon produced by the interaction between the high-speed charged particle stream emitted by the sun and the high-altitude atmospheric molecules in the polar regions of the earth under the action of a magnetic field after reaching the earth. Observations have shown that the intensity and frequency of auroras are closely related to the intensity of solar activity.

2. Earth magnetic storms.

A phenomenon of 11-year or longer cycle activity that exists on the Sun. Whenever the relative number of sunspots increases in the peak year of solar activity, flare eruptions, coronal material ejections and other phenomena occur frequently, and a large number of high-energy charged particles are emitted to reach the earth, the original magnetic field of the earth will be disturbed, causing the earth's magnetic storm.

3. Impact on radio communication and electricity.

When the sun emits a large number of high-energy charged particles into near-earth space, it will interfere with radio communications and ground power transmission, and when a large-scale explosive activity event occurs on the sun, the relevant departments need to be prepared to take countermeasures.

4. Impact on astronautics.

The flow of high-energy charged particles can also interfere with and destroy the equipment and operation of space probes, and even threaten the life safety of astronauts, so space exploration equipment must fully consider this factor, have a detailed understanding of the magnetic field conditions and solar wind conditions in the vicinity of the earth and the route area, and consider preventive measures.

5. Impact on earth disasters.

The impact of solar activity on some catastrophic events on Earth has been a long-term concern of many scientists. The data show that the solar activity cycle has a certain relationship with the changes of floods and droughts and cold and warm changes on the earth. For example, studies have shown that the number of years of flooding, drought, cold and warmth, and the number of occurrences are related to the 11- and 22-year cycles of solar activity.

6. Impact on the human body.

Statistical studies of astronomical factors and human health and behavior have found that the human nervous system is very sensitive to changes in solar activity during the Earth's magnetic storms caused by solar activity, and certain diseases, changes in the blood system, nervous system and sunspot activity show obvious correlations. At present, such topics are still in the research stage.

The volume of the Sun is 1.3 million times that of the Earth.

The Sun is a huge, red-hot planet of gas. Knowing the distance between the sun and the earth, and then measuring the diameter of the sun's circle from the earth, we can find that the radius of the sun is 10,000 kilometers from a simple triangular relationship, which is 109 times that of the earth's half-accord. From this, it can be calculated that the volume of the Sun is 1.3 million times that of the Earth.

The Earth is one of the eight planets of the Sun or branch system, the third in order of being from the Sun to the Sun, and it is also the terrestrial planet with the largest diameter, mass and density in the solar system, which is 100 million kilometers away from the Sun. The Earth rotates from west to east while revolving around the Sun. Now 4.046 billion years old, it has a natural satellite, the Moon, and the two form a celestial system, the Earth-Moon System.

4.6 billion years ago, it originated in the primordial solar nebula.

The formation of the solar system

The Sun is a star, and about 5 billion years ago, an interstellar dust cloud called the "Protosolar Nebula" was gravitationally reduced in size, and the core became hotter and denser. When the volume is reduced to one part per million, it is called a primordial star, and when the temperature of the core region rises to more than 15 million degrees Celsius, it triggers the hydrogen fusion reaction, which is the reaction of the hydrogen bomb**. At this time, a star called the Sun was born.

After the Sun Star City, the huge energy of the nucleosynthesis and the centrifugal force generated by the rotation threw a large amount of matter outside, forming a "protoplanetary disk" composed of multiple small celestial bodies around it. These "protoplanetary disks" grow into Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune through their respective accretions.

The Sun is 150 times the size of the Earth.

The sun is the central body of the solar system and occupies the overall mass of the solar system. The eight planets, asteroids, meteors, comets, Neptune objects, and interstellar dust in the solar system all revolve around the Sun, and the Sun revolves around the Milky Way's buried center.

The Sun is a star located at the center of the solar system, and it is almost an ideal sphere intertwined with hot plasma and magnetic fields. The diameter of the Sun is about 1,392,000 (kilometers, equivalent to 109 times the diameter of the Earth; It is about 1.3 million times the size of the Earth; Its mass is about 2 10 kilograms (330,000 times that of the Earth).

In terms of chemical composition, about three-quarters of the mass of the Sun is now hydrogen, and almost all of the rest is helium, including oxygen, carbon, neon, iron, and other heavy elements with a bond number of less than 2% by mass, which uses nuclear fusion to release light and heat into space.

The Sun is currently passing through the local interstellar cloud in the local bubble of the Orion Arm at the inner edge of the Milky Way. At a distance of 17 light-years from Earth, there are 50 of the closest star systems (the closest star to the Sun is a red dwarf called Proxima Centauri, about light-years).

The Sun is a yellow dwarf (spectrum G2V), the lifespan of a yellow dwarf is roughly 10 billion years, and the Sun is currently about 100 million years old. In about 50 to 6 billion years, the Sun's interior will be almost completely depleted of hydrogen and the Sun's core will collapse, causing the temperature to rise, a process that will continue until the Sun begins to fuse helium into carbon.

Although helium fusion produces less energy than hydrogen fusion, it is also hotter, so the outer layers of the sun will expand and release a portion of the outer atmosphere into space. When the process of turning to the new elements ends, the mass of the Sun will decrease slightly, and the outer layer will extend to the current orbit of the Earth or Mars (the two planets will be farther away from the Sun due to the decrease in the mass of the Sun).

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How many times the volume of the Sun is the Earth

The Sun is a huge, red-hot planet of gas. Knowing the distance between the sun and the earth, and then measuring the diameter of the angle of view of the sun's circle from the earth, from the simple triangular relationship of the Zhiye, we can find that the radius of the sun is 10,000 kilometers, which is 109 times the radius of the earth. From this, it can be calculated that the volume of the Sun is 1.3 million times that of the Earth.

Further reading: What is the external structure of the sun from the inside to the outside

The solar atmosphere is divided into three layers: the photosphere, the chromosphere, and the corona from the inside to the outside. The solar photosphere is above the convective region of the sun, and the atmosphere above the photosphere is the chromosphere, and the corona is the outermost layer of the solar atmosphere.

What is the effect of solar activity on the Earth

1. Disrupt the earth's atmosphere, so that the radio short-wave communication on the ground will be affected, and even there will be a short interruption.

2. High-energy charged particles disturb the earth's magnetic field, producing a "magnetic storm" phenomenon, which makes the magnetic needle vibrate violently and cannot indicate the direction correctly.

The whole earth is a large magnetic field, magnetic storms generally occur 20-40 hours after the eruption of solar flares, it is a strong disturbance of the geomagnetic field, and the strength of the magnetic field can vary greatly.

3. Aurora will occur when the stream of high-energy charged particles rushes into the high-altitude atmosphere of the polar regions at high speed.

4. Cause natural disasters, such as floods and droughts.

In what direction the sun rises in winter

In winter, the sun rises in a south-easterly direction and sets in a south-westerly direction; In summer, the sun rises and sets in a north-east and north-west direction, respectively. Where the latitude is different, the degree of "tilting" of the sun's trajectory is also different. The two points where the celestial equator intersects the horizon are due east and west.

As you can see, the sun rises in a north-east direction and sets in a north-west direction on the summer solstice.

What is the principle of the formation of a total solar eclipse

A total solar eclipse occurs because the three celestial bodies, the Sun, the Moon and the Earth, happen to be very close to a straight line at a specific moment, and the Moon moves between the Sun and the Earth and obscures the Sun. When a total solar eclipse occurs, the Moon's shadow on the Earth is divided into two parts, the central area is called the umbra ridge and the outer area is called the penumbra. A total solar eclipse can only be seen from the position of the umbra.