Notes on Navigation: Geocentric and Geographic Latitude of a place:


Geocentric  Latitude of a place

The angular distance between a point on the Earth's surface and the equator, using the center of the Earth as the vertex. It differs from geodetic latitude in that it accounts for the ellipsoidal shape of the Earth rather than considering it as a perfect sphere


Geographic Latitude of a place

The angle between the plane of the Equator and the vertical at that place. In navigation, the term Latitude implies as observed, that is the geographic latitude. 

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