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By international agreement about 200 years ago, the zero-reference

line of longitude is the Prime Meridian.

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14y ago

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Related Questions

What is the shortest line of longitude?

All lines of longitude are equally long, beginning and ending at the poles.


What is the beginning of a longitude line called?

Every meridian of longitude begins and ends at the earth's poles.You can consider whichever one you prefer to be the beginning.


Which line of longitude shows where the beginning of one day and the end of another come together?

You're thinking of the International Date Line -- ~180 degrees of longitude -- which is not a straight line, because of politics.


What is the beginning of longitude?

Not sure how to answer this one because it may mean 'who first thought of longitude' or it may mean 'where does a longitude line start'. Come back when you've explained what you mean.


What is the name of the beginning of longitude lines?

All of the longitude "lines" merge at the north and south poles, so you might say that they 'start' at one of these points and end at the other one. If the question means to ask: "Where is the line of zero longitude ?", then the answer is: The origin of longitude is defined as the Prime Meridian, an imaginary line between the north and south poles that passes through the Royal Observatory in Greenwich, England.


Is the prime meridian a line of latitude or a line of longitude?

The Prime Meridian is a line of longitude, and it sits at 0 degrees longitude.


Which line of longitude is found opposite of the Prime Meridian?

The major line of longitude located at 180 degrees longitude is the International Date Line.


Is the prime meridian the latitude line?

No, its the longitude line. Its 0 degress longitude.


What is another name for the line of longitude?

another name for a line of longitude is meridian.


Is 104 degrees west a line of longitude or latitude?

104W is a longitude line. Anything labelled as "E" or "W" is longitude.


What is the name of the line that is 0 longitude?

The name of the line that has 0 longitude is the prime meridian


How are line of longitude also called?

A line of constant longitude is often referred to as a 'meridian'.