Category:Equatorial Coordinate System
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This category contains results about Equatorial Coordinate System.
Definitions specific to this category can be found in Definitions/Equatorial Coordinate System.
The equatorial coordinate system is an astronomical coordinate system in which measurements are based on the celestial equator.
Hence a point on the celestial sphere is located by means of $2$ angular measurements:
- the right ascension $\alpha$, which is the angular distance measured eastwards along the celestial equator from the vernal equinox
- the declination $\delta$, which is the angular distance measured north or south of the terrestrial equator.
Subcategories
This category has the following 3 subcategories, out of 3 total.