Sunshine, English word, noun, translated as "sunshine; Pleasure; Sunny day; Happy, famous; Sen Shane. " Sunshine is clean, sunshine is clean; Clean the little lady; Sunshine etude; The sun is clean and clean.
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The sun is the central star of our solar system and a huge gas sphere. It consists of the core, radiation layer, troposphere and photosphere. The core temperature of the sun is as high as 15 million degrees, which releases huge energy through nuclear fusion reaction.
1, solar rays and heat energy
The sun is the most important energy source on the earth, and its light energy and heat energy support the life on the earth and the formation of various climate phenomena. Solar rays contain electromagnetic radiation with multiple wavelengths, of which visible light is the visible part. Solar radiation provides energy for plants through photosynthesis, produces oxygen and supports the operation of the whole food chain.
2. The movement and influence of the sun
It takes about 25 days for the sun to rotate once. Its rotation speed is faster near the equator and slower near the pole. The activities of the sun will produce sunspots, solar flares and other phenomena, which will have a certain impact on the earth's magnetic field and atmosphere. The periodic activities of the sun, such as the number of sunspots and the frequency of solar flares, are all related to the climate change on the earth.
3. Observation and study of the sun
Scientists use solar telescopes and solar observation satellites to observe and study the sun. These observations can provide high-resolution photos of the sun, the characteristics of the corona and the data of solar activity. Solar physics is a subject that studies the sun and its activities. Studying the sun can help us better understand the origin and evolution of the universe.
According to scientists' prediction, the sun will gradually expand into a red giant after several billion years and eventually run out of nuclear fuel. After the nuclear fuel is exhausted, the sun will go through the stage of stellar evolution and form a dense white dwarf. The future evolution of the sun will have an important impact on the earth and other planets in the solar system.
The sun is the central star of our solar system. It has rich characteristics and structure, provides light and heat energy, and has a far-reaching impact on the earth and living things. By observing and studying the sun, scientists can increase our understanding of the universe and predict the future evolution of the sun.