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, with nothing missing. Just like every other one of the
infinite number of meridians of longitude, it has the shape of a semi-circle that joins the
earth's north and south Poles.
When the Prime Meridian is joined with the meridian of 180 degrees longitude, the pair
forms a 'great circle' on the globe.
That's the meridian of 180 degrees longitude ... both east and west longitude.
I've heard it called the "Anti-Meridian" but I don't think that's official in any formal way.
When joined with the Prime Meridian, the 180-degree
meridian of longitude forms a complete great circle.
The International Date Line, 180 degrees longitude.
Earth countries, states and towns
The International Date line
Mostly the International Date Line
The 180th meridian is on the other side, and the International Date Line generally follows the 180th meridian. (The Prime Meridian is the 0th meridian, with there being 360 lines of longitude across the globe)
meridian
They're not. A "great circle" is a circle drawn on a sphere that has its center at the center of the sphere. -- The only line of latitude that's a great circle is the equator. None of the others are. -- Each meridian of longitude is 1/2 of a great circle. In order to form a complete great circle, you have to glue it together with the other meridian of longitude that's directly opposite it on the other side of the globe. Like the Prime Meridian and 180° longitude, or 34° east longitude and 146° west longitude.
It is usually 180 degrees longitude, hope this helped.
Starting from the Prime Meridian and going either east or west, you'll cover 360 degrees of longitude before you find yourself back at the Prime Meridian again. Half-way around a sphere corresponds to 180 degrees. If you and your friend both start out from the Prime Meridian, and one of you travels east around the globe and the other travels west around the globe, you'll eventually meet each other. If you both travel exactly the same distance, then you each cover 180 degrees of longitude, and you meet exactly on the other side opposite the Prime Meridian, in the middle of the Pacific Ocean, at 180 degrees longitude, both east and west.
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.
The 180th meridian is on the other side, and the International Date Line generally follows the 180th meridian. (The Prime Meridian is the 0th meridian, with there being 360 lines of longitude across the globe)
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.
Like every other meridian, the Prime one only joins the poles,and forms a semi-circle.
meridian
Each line of longitude extends from one pole to the other, perpendicular to the equator. Along each meridian, the equator is 0° latitude, the north pole is 90° north latitude, and the south pole is 90° south latitude. The prime meridian, which is the meridian that passes through Greenwich, England, is 0° longitude, and the international date line, directly opposite the prime meridian, is 180° east or west longitude.
A "prime meridian" is a line of longitude from which other longitude positions are calculated. The term "Prime Meridian" is currently applied to the Greenwich 0° line from which all other locations around the globe are measured (positioning and clock times), up to 180° east or west of that line.
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).
They're not. A "great circle" is a circle drawn on a sphere that has its center at the center of the sphere. -- The only line of latitude that's a great circle is the equator. None of the others are. -- Each meridian of longitude is 1/2 of a great circle. In order to form a complete great circle, you have to glue it together with the other meridian of longitude that's directly opposite it on the other side of the globe. Like the Prime Meridian and 180° longitude, or 34° east longitude and 146° west longitude.
It is usually 180 degrees longitude, hope this helped.
Starting from the Prime Meridian and going either east or west, you'll cover 360 degrees of longitude before you find yourself back at the Prime Meridian again. Half-way around a sphere corresponds to 180 degrees. If you and your friend both start out from the Prime Meridian, and one of you travels east around the globe and the other travels west around the globe, you'll eventually meet each other. If you both travel exactly the same distance, then you each cover 180 degrees of longitude, and you meet exactly on the other side opposite the Prime Meridian, in the middle of the Pacific Ocean, at 180 degrees longitude, both east and west.
The Prime Meridian is complete in and of itself, with nothing missing.It's only a semi-circle, however, which may, understandably, leave some with anuncomfortable feeling of virtual incompletitude.Those who feel that there's something inherently unsatisfying about a semi-circlemay join the Prime Meridian with the meridian of longitude at 180°, and therebyarrive at a partnership that forms a true, complete, great circle on the Earth.