Sun
The Sun is the star at the center of the Solar System, a nearly perfect sphere of hot plasma, radiating energy in the form of light and heat. It provides the primary source of energy for Earth's climate system, driving weather patterns, photosynthesis in plants, and supporting virtually all life forms through the food chain.
The Sun's immense gravitational pull keeps the planets, asteroids, and other bodies in orbit around it. Its surface, the photosphere, is where visible light is emitted, with temperatures around 5,500 degrees Celsius. Above the photosphere are the chromosphere and the corona, visible during solar eclipses. The Sun undergoes various cycles, including the 11-year sunspot cycle, which affects solar radiation and can influence Earth's climate. Solar energy is harnessed through technologies like solar panels, providing a sustainable energy source. The study of the Sun and its interactions with the Solar System is a fundamental aspect of astronomy and space science.
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