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equatorial coordinate system

(Encyclopedia)CE5 Equatorial coordinate system equatorial coordinate system, the most commonly used astronomical coordinate system for indicating the positions of stars or other celestial objects on the celesti...

galactic coordinate system

(Encyclopedia)galactic coordinate system, astronomical coordinate system in which the principal axis is the galactic equator (the intersection of the plane of the Milky Way with the celestial sphere) and the refere...

horizon coordinate system

(Encyclopedia)horizon coordinate system: see altazimuth coordinate system. ...

altazimuth coordinate system

(Encyclopedia)altazimuth coordinate system ăltăzˈəməth [key] or horizon coordinate system, astronomical coordinate system in which the position of a body on the celestial sphere is described relative to an obs...

ecliptic coordinate system

(Encyclopedia)ecliptic coordinate system, an astronomical coordinate system in which the principal coordinate axis is the ecliptic, the apparent path of the sun through the heavens. The ecliptic poles are the two p...

astronomical coordinate systems

(Encyclopedia)astronomical coordinate systems. A coordinate system is a method of indicating positions. Each coordinate is a quantity measured from some starting point along some line or curve, called a coordinate ...

Equatorial Guinea

(Encyclopedia)CE5 Equatorial Guinea gĭnˈē [key], officially Republic of Equatorial Guinea, republic (2021 est. pop. ...

equatorial mounting

(Encyclopedia)equatorial mounting: see telescope. ...

Equatorial Islands

(Encyclopedia)Equatorial Islands: see Line Islands. ...

French Equatorial Africa

(Encyclopedia)French Equatorial Africa, former French federation in W central Africa. It consisted of four constituent territories: Gabon, Middle Congo (see Congo, Republic of the), Chad, and Ubangi-Shari (now the ...