Landmark

Any shore object which serves as a guide to vessels. equator; the angular distance from the equator measured on a meridian.

Celestial Latitude. The declination of a heavenly body; the angular distance of a heavenly body from the equinoctial, either north or south.

Difference of Latitude. The difference in degrees, minutes and seconds of arc between two parallels.

Geocentric Latitude. The distance of a heavenly body from the ecliptic, as viewed from the centre of the earth.

Heliocentric Latitude. The distance of a heavenly body from the ecliptic as seen from the centre of the sun.

Terrestrial Latitude. Latitude measured from the equator, north and south, on the earth's surface.