Astronomy Concept: Elongation

This example demonstrates the calculation and visualization of the angular distance between the Sun and a Planet with Earth as a reference point. Key math concepts include angle measurement, geometric construction, vector usage, and trigonometric function applications. GeoGebra commands like Point, Intersect, Circle, Angle, and Vector are used to create points, lines, circles, and measure angles, with objects defined as eq1, eq2, A, B, C, c, α, text1, u, v. Suitable for high school and above students to understand the concept of angular distance in astronomy and its practical applications.