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The star located at the center of our solar system is the Sun. The Sun is a massive, glowing ball of hot gases, mainly composed of hydrogen (about 74%) and helium (about 24%), undergoing nuclear fusion in its core. This fusion process converts hydrogen into helium, releasing enormous amounts of energy in the form of light and heat, which supports life on Earth and drives the solar system's dynamics.
The Sun accounts for 99.8% of the total mass of the solar system. Its powerful gravitational pull keeps all the planets, moons, asteroids, and comets in orbit around it. Without the Sun’s gravity and energy output, the solar system as we know it could not exist.
Key facts about the Sun:
Type: Medium-sized G-type main-sequence star (G2V).
Diameter: About 1.39 million km, roughly 109 times wider than Earth.
Distance from Earth: Approximately 150 million km (1 Astronomical Unit).
Surface temperature: Around 5,500°C (9,932°F) in the photosphere.
Age: Estimated to be 4.6 billion years old, currently in its stable middle age.
Planets like Earth, Mercury, Venus, and the rest orbit the Sun due to its immense gravitational field. While other objects in the universe may be called stars, the Sun is the only star in our solar system, making it unique and essential for life on Earth.The correct answer is Option C: Sun, because it is the central star that provides light, heat, and gravitational force to maintain the structure and motion of all celestial bodies within the solar system.
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