The sun is a star located at the center of our solar system. It is composed primarily of hydrogen and helium and generates energy through nuclear fusion, which produces light and heat. This energy is essential for life on Earth, as it drives photosynthesis in plants and influences the planet's climate and weather patterns.
The Sun's surface temperature is about 5,500 degrees Celsius (9,932 degrees Fahrenheit), while its core reaches temperatures of around 15 million degrees Celsius (27 million degrees Fahrenheit). The Sun has a diameter of about 1.39 million kilometers (864,000 miles), making it about 109 times wider than Earth.
The Sun's activity, including solar flares and coronal mass ejections, can affect space weather and have impacts on satellite communications, power grids, and even astronaut safety.
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