Naked-eye astronomyDefinedTerm
Ecliptic
The apparent yearly path of the Sun through the sky.
The plane of Earth's orbit around the Sun. The Moon and planets are always within a few degrees of this line.
Used in these guides
- The Celestial Sphere: How the Sky Is OrganizedNaked-eye astronomy
- Why Orbits Work: Kepler's Three Laws in Plain LanguageThe neighborhood
- The Moon's Phases, Finally Explained ProperlyThe neighborhood
- Comets, Asteroids, and Meteors: What's the Difference?The neighborhood
- Ptolemy to Copernicus: Moving the Center of the UniverseHow we learned where we are