The Prime Meridian is complete exactly as it appears on maps and globes.
It forms a half-circle, and it isn't missing anything.
When joined with the Prime Meridian, the 180-degree meridian of longitude
forms a complete great circle.
180th Meridian
The Prime Meridian is complete as it appears on maps or globes. It forms a half-circle, and isn't missing anything. When joined with the Prime Meridian, the 180-degree meridian of longitude forms a complete great circle.
The Prime Meridian is complete just the way it's drawn on maps or globes. It's not missing anything. When the Prime Meridian is joined with the 180° meridian of longitude, the combination forms a single, complete great-circle.
The longitude of every point on the Prime Meridian is Zero.
The 180th meridian or antimeridian is the meridian which is 180° east or west of the Prime Meridian with which it forms a great circle.
The Prime Meridian is a line of longitude, and it sits at 0 degrees longitude.
the prime meridian is the starting point when measuring the longitude
The opposite of the Prime Meridian -- 180° East (or West) Longitude -- is traditionally referred to as the International Date Line, though substantial portions of the line deviate from the true meridian in order to accommodate geopolitical boundaries (countries).
Prime Meridian. 180 longitude is the Iinternational Date Line, and the equator is 0 degrees latitude
prime meridian!Prime Meridian!PRIME MERIDIAN!PrImE MeRiDiAn!
By international agreement, the Prime Meridian is defined as zero longitude, and it's the one from which all other longitudes are measured.
The Prime Meridian is the definition of zero longitude.