Сонця, or the Sun, is the star at the center of our solar system. It is a massive ball of hot plasma, primarily composed of hydrogen and helium. The Sun provides light and heat, making life possible on Earth. Its energy drives weather patterns and supports photosynthesis in plants. The Sun is about 4.6 billion years old and is classified as a G-type main-sequence star (G dwarf). It has a diameter of approximately 1.4 million kilometers and is about 150 million kilometers away from Earth. The Sun's gravitational pull keeps the planets and other celestial bodies in orbit around it.