Earth’s Equator, Ecliptic, and Axis Diagram - Astronomical Geometry Explained #19216 (License: Personal Use)

This black-and-white line diagram depicts the geometric relationship between Earth’s equatorial plane, the ecliptic (Earth’s orbital plane around the Sun), and its rotational axis. The intersection of these planes forms the celestial equator and defines the obliquity of the ecliptic (~23.5°), which governs seasonal variation. Crosses mark key points where the equator and ecliptic intersect-the equinoxes.

Used in astronomy, geography, and education resources to explain Earth’s orientation in space, seasonal cycles, and coordinate systems; ideal for introductory astrophysics or earth science pages targeting students and curious learners.