Word Origin and History for nexus Expand. n. 1660s, bond, link, means of communication, from Latin nexus that which ties or binds together, past participle of nectere to bind, from PIE root *ned- to bind, tie (see net (n.)).
Latitude is an angle (defined below) which ranges from 0Â° at the Equator to 90Â° (North or South) at the poles. Lines of constant latitude, or parallels, run east-west as circles parallel to the equator. Latitude is used together with longitude to specify the precise location of features on the surface of the Earth.he reduced or parametric latitude, Î², is defined by the radius drawn from the centre of the ellipsoid to that point Q on the surrounding sphere (of radius a) which is the projection parallel to the Earth's axis of a point P on the ellipsoid at latitude.
Latitude and longitude are both measured in degrees. Each degree (Â°) is subdivided into 60 minutes (') and each minute into 60 seconds (). Each degree of latitude corresponds to a distance on the Earthâs surface of about 111 km.Each degree of longitude however, corresponds to a distance that varies with latitude. The distance is about 111 km at the Equator, reducing to 0 km at the Poles.henever the unqualified term latitude is used, it will normally mean the geographic latitude. On the WGS84 ellipsoid, the length of a degree of latitude increases from 110.574 km at the equator to 111.694 km at the poles.