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Why is there a need designate a prime meridian?

Updated: 8/21/2019
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10y ago

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With latitude, there's an obvious zero mark; the equator. The equator is a physical property of the real world, which isn't open to interpretation.

With longitude, there is no obvious zero mark; any longitude would serve as well for zero as any other. The only "GOTCHA!" is that for longitude to be useful, everybody needs to AGREE on a zero point, and that's a political question, not a physical one.

England had the biggest empire, the most ships, and the most commerce; it was the clear favorite. So the "Prime Meridian" was defined as the Royal Observatory in Greenwich, England.

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Q: Why is there a need designate a prime meridian?
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Related questions

Does prime meridian need to be capitalized?

you capitalize prime meridian because it is an important thing a proper noun:)


What imaginary line is located at 0 dergees longitude?

prime meridian!Prime Meridian!PRIME MERIDIAN!PrImE MeRiDiAn!


What is the name of the meridian that is located at 0 longitude?

This is called the Prime meridian, it passes through Greenwich, England.


How far is college station from prime meridian?

You need to specify which college. The prime meridian is at Greenwich, just east of the centre of London, UK.


What comes before meridian?

prime the prime meridian


What is the name of 0 longitude?

This is the Greenwich Meridian, the Prime Meridian of the World.


What is the sixth prime meridian?

There is only a single Prime Meridian.


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The prime meridian is at all latitudes.


What prime meridian is Virginia in?

Virginia is not in or on a prime meridian. There's only one "prime meridian" and it is in Greenwich, London, England.


What is the starting point for measuring longitude?

the prime meridian is the starting point when measuring the longitude


What is the name of the line 0 longitude?

The line name at 0 degrees longitude is commonly referred to as the Prime Meridian. This line passes through Greenwich, London, United Kingdom and can also be referred to as the International Meridian or Greenwich Meridian.


The zero degree longitude line called?

This imaginary circle is called the prime meridian. it is an imaginary line that circles the globe vertically and is typically measured as beginning in Greenwich, England.