The shape of the sun 10, what does the sun look like

The glowing sphere that people see with the naked eye is not the whole picture of the sun, but only a circle of the sun. The spherical part of the sun that emits strong light is called a "photosphere".

The thickness of the photosphere is only tens to hundreds of kilometers, but it is slightly more opaque than the air of the ball. Because the temperature of the upper part of the photosphere is lower than that of the lower half, the image of the solar disk will appear brighter than the surrounding edges or periphery, a phenomenon called peripheral dimming.

The photosphere is the visible circle of the sun, in the bottom layer of the solar atmosphere, with a thickness of about 500 kilometers, because it is bright and dazzling, so it is called the photosphere. The shape and size of the sun are determined according to it, and the surface temperature of the sun is actually the surface temperature of the photosphere. For this reason, the photosphere is often seen as the whole of the sun.

Sunlight has a spectrum similar to that of a black body, interspersed with thousands of thin atomic absorption wires from the photosphere, indicating a temperature of about 6,000 K. Sun.

Is it spherical spherical sun shape It doesn't matter what shape the sun is, what matters is that it is the sun. The invisible and the egg-like sun in the heart is more invisible than tangible. It's a fireball—no one can tell, because no one has ever gone up to inspect it.

Just think it's round. Target. The sun I see is flat.

The sun is a huge, red-hot ideal sphere air mass.

The Sun is a star located at the center of the solar system, and it is almost an ideal sphere intertwined with a hot plasma and a magnetic field, with a diameter of 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 less than 2% of the mass, which uses nuclear fusion to release light and heat into space.

Sunlight.

Sunlight is the main source of energy on Earth**. The solar constant is the amount of energy received per unit area directly exposed to sunlight at a distance of 1 astronomical unit from the Sun, and its value is equivalent to about 1,368 W m3 (watts per square meter). After absorption by the atmosphere, the amount of sunlight reaching the Earth's surface has been attenuated – only about 1,000 W m3 in a clear atmosphere and the Sun is close to the zenith.

There are many natural synthesis processes that can be used in solar energy - photosynthesis is an instrument in which plants chemically extract energy from sunlight and heat it directly or use solar cells to convert it into electricity, which is used in solar power generation equipment, or other work; Concentrated solar energy (i.e., condensed sunlight) is also sometimes used. The energy stored in ** and other fossil fuels comes from solar energy converted by photosynthesis in the distant past.

The Sun is a text that introduces the three characteristics of the sun: far, great, and hot.

1. "The sun is 100 million kilometers away from us. ”

The characteristics of the far distance of the sun are illustrated by the column numbers.

2. "To the sun, if you walk, day and night, it will take almost 3,500 years; Even if you take a plane, you have to fly for more than 20 years. ”

The column numbers illustrate the characteristics of the sun's brightness and magnificence.

3. "The temperature of the sun is very high, the surface temperature is 6000 degrees Celsius, even if steel touches it, it will also turn into steam; The core temperature is estimated to be 3,000 times the surface temperature. ”

The characteristics of solar heat are illustrated by column figures.

The Sun is a large, red-hot ideal sphere of air formed by the interweaving of hot plasma with a magnetic field, which is slightly flattened by its rotation.

The Sun is the closest star to Earth and is the central body of the solar system. The mass of the solar system is concentrated in the sun. The eight planets in the solar system, the small sleepy planets, meteors, comets, outer Neptune objects, and interstellar dust all orbit (orbit) the sun.

Diameter of the Sun: about 1392020 km.

Summary. Pro, the shape of the sun is the same and is determined due to the physical structure of the sun. The sun is a sphere made up of plasma, and its physical structure is the result of a combination of internal thermal pressure and external gravitational forces.

The thermal pressure evenly distributes the plasma inside the sun, while the gravitational force outside causes the surface of the sun to form a spherical shape. Since the physical structure of the sun is the same, its shape is also the same.

Can you elaborate on that a little bit more?

Pro, the shape of the sun is the same and is determined due to the physical structure of the sun. The sun is a sphere made up of plasma, and its physical structure is the result of a combination of internal thermal pressure and external gravitational forces. The thermal pressure evenly distributes the plasma inside the sun, while the external gravitational force causes the sun's tung to form a nanospherical shape.

Since the physical structure of the sun is the same, its shape is also the same.

The sun shines and heats up because nuclear fusion is going on inside the sun all the time, and countless "hydrogen bombs" are constantly occurring, and a large amount of heat and light generated by this activity is constantly emitted to the surroundings. The sunlight we see every day is from the sun, after a long flight, and finally reaches the earth, and the light on the moon is reflected by the sun's light to reach our eyes.

The sun was formed very early, and according to scientists, the sun formed in a cloud of hydrogen molecules that collapsed about 100 million years ago, which is a world different from the origin of man. There are generally two ways to speculate about the formation time of the sun, one is to use the computer model of stellar evolution and primordial nucleus synthesis to confirm that it is about 100 million years according to the current age of the sun's main sequence zone. The time obtained by this method is basically consistent with the inference of fossil time.

The second method is that the evolution of the Sun's main order has reached middle age, in which nuclear fusion is the fusion of hydrogen into helium at the core. More than 4 million tons of matter are converted into energy in the Sun's core every second, producing neutrinos and solar radiation. At this rate, the Sun has converted about 100 Earth-masses of matter into energy so far, and the energy consumed by the Sun is estimated to be about 10 billion years.

The interior of the sun is happening all the time, emitting a lot of light and heat. The internal structure of the sun is also relatively special, according to the relative strength of solar activity, the sun can be divided into two categories: quiet sun and active sun. In order from the inside out, the solar system is composed of the core, the radiation region, the troposphere, the photosphere, the chromosphere, and the corona.

As the Sun's interior continues to consume fuel, it will eventually enter the red giant phase, at which point it will continue to expand in size and eventually collapse into a white dwarf.