태양과 지구와 달

태양과 지구와 달 is an educational Android app designed to help users understand the movements of the solar system, including the sun, earth, and moon. It features simulations that allow for exploration of seasonal changes, lunar phases, and the relationships between solar altitude and shadow lengths. Users can engage in model experiments to explain seasonal variations and observe the moon's shape. This app serves as an essential tool for learning about celestial movements and their effects on our planet.