earthcentered

Earthcentered, often written earth-centered or geocentric, refers to frameworks that place Earth at or near the center of a model or reference system. In astronomy and cosmology, geocentrism is the view that Earth lies at the center of the universe. Geocentric models were developed in antiquity and dominated Western astronomy until the Copernican revolution, after which heliocentrism and general gravitation provided better explanations. Today the geocentric label is mainly historical, used in discussions of the history of science or for pedagogical contrast.

In geodesy and navigation, earth-centered describes coordinate systems with the origin at Earth's center. The earth-centered, earth-fixed (ECEF) frame, which rotates with the planet, underpins GPS, satellite tracking, and mapping. This is distinct from inertial frames used in celestial mechanics.

In cultural and philosophical contexts, earth-centered or ecocentric worldviews regard the planet as the central referent of value or concern, contrasting with anthropocentric perspectives. These views appear in environmental ethics, spirituality, and some indigenous traditions and inform debates about sustainability.

Overall, earth-centered can denote historical cosmologies, practical geospatial reference frames, or value-oriented worldviews that place the Earth at the center of inquiry or concern.