Chinese astronomy is one of the oldest scientific disciplines in the world, with records dating back over 4,000 years. Ancient Chinese astronomers meticulously observed celestial bodies, including the Sun, Moon, and stars, to create calendars and predict seasonal changes. They developed a unique system of constellations and used tools like the armillary sphere to enhance their observations. During the Han Dynasty, significant advancements were made, including the compilation of star catalogs and the establishment of observatories. The Chinese also linked astronomy with astrology, believing that celestial events could influence earthly affairs. This integration of science and philosophy shaped their understanding of the universe.