We found 1 definitions of line of longitude from 1 different sources.
Noun |
||
line of longitude - an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator; "all points on the same meridian have the same longitude" | ||
meridian | ||
great circle a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center | ||
observer's meridian a meridian that passes through the observer's zenith | ||
prime meridian meridian at zero degree longitude from which east and west are reckoned (usually the Greenwich longitude in England) | ||
magnetic meridian an imaginary line passing through both magnetic poles of the Earth |