Solar System Diagram: Sun, Earth, and Moon Orbital Relationships #19231 (License: Personal Use)

This diagram depicts the heliocentric model with the Sun at the center, Earth orbiting it along a red elliptical path, and the Moon orbiting Earth along a smaller blue path. The relative sizes and distances are not to scale, emphasizing conceptual clarity over precision. It serves as an educational tool to explain basic celestial mechanics and phases of the Moon.

Used in K-12 science textbooks, astronomy outreach materials, and introductory astrophysics webpages to illustrate orbital dynamics and the Earth-Moon-Sun system. Matches user intent for learning foundational astronomy concepts.