importance of equator and prime meridian

Share with your friends. The IRM is the only meridian that may now be described as the prime meridian of the world, as it defines 0° longitude by international agreement. Why is the equator important? It is sometimes referred to as the Greenwich Meridian. The Prime Meridian is the universally decided zero longitude, an imaginary north/south line which bisects the world into two and begins the universal day. Each meridian is half of a great circle. The Royal Observatory in Greenwich is where east meets west at Longitude 0°. Circles of Latitude are called parallels while half of a longitudinal circle is called a Meridian. The prime meridian and the International Date Line create a circle that divides the Earth into the eastern and western hemispheres. It's an imaginary line that divides the Earth into two equal halves, and it forms the halfway point between the South Pole and the North Pole at 0 degrees latitude, according to National Geographic. Eastern Hemisphere. The line starts at the north pole, passes across the Royal Observatory in Greenwich, England, and ends at the south pole. Secondly, why is the prime meridian and equator important? Before this, almost every town in the world kept its own local time. Prime Meridian or Greenwich Meridian is the 0 o longitude which passes through the Royal Observatory at Greenwich, near London. It … The transit circle was built by the 7th Astronomer Royal, Sir George Biddell Airy, in 1850. The line starts at the north pole, passes across the Royal Observatory in Greenwich, England, and ends at the south pole. See the fact file below for more information on the prime meridian: The Prime Meridian divides the Earth into East/West from the North Pole to the South Pole with an imaginary line along the longitude line of 0°. If you stand with one foot on one side and the other on the left, you are perfectly in the middle of east and west, according to the prime meridian line. The prime meridian and the International Date Line create a circle that divides the Earth into the eastern and western hemispheres. The equator and prime meridian are the circles that stretch all the way around the earth. CEO Compensation and America's Growing Economic Divide. It is also important because twice a year, during the spring and autumn equinoxes, the sun passes directly over it. The line itself divided the eastern and western hemispheres of the Earth - just as the Equator divides the northern and southern hemispheres. There are other six important latitudes, which are as follows: The North Pole marked at 90 o N ; ... Prime Meridian / Greenwich Meridian. World Map with Equator and Prime Meridian The Equator is something that divides the earth into two equal parts. All longitudes are of same importance but with the help of prime meridian(0°longitude) we can navigate whether we are going east or west. The first was the fact that the USA had already chosen Greenwich as the basis for its own national time zone system. longitude by international agreement. The prime meridian, on the other hand, is an imaginary line, created by people to mark zero degrees longitude. The equator is at 0-degree latitude. You know Prime meridian is a longitude. Meridians are important for setting time zones. The line in Greenwich represents the historic Prime Meridian of the World - Longitude 0º. Unlike latitudes that have the Equator as the central Latitude, the Prime Meridian has been set as the reference point of meridians over the course of history. Measured also in degrees, minutes, and seconds, longitude is the amount of arc created by drawing first a line from the Earth’s centre to the intersection of the Equator… The most important latitude is the equator, marked at 0 o. The main difference between Equator and Prime Meridian is that Equator is the line circling the Earth halfway between the North and South poles while Prime Meridian is the line that runs through Greenwich, England. noun: our planet, the third from the Sun. Latitude and longitude are divided into degrees (°), minutes (′) and seconds (″), with sixty minutes in a degree and sixty seconds in a minute. Secondly, why is the prime meridian and equator important? As the Earth’s crust is moving very slightly all the time the exact position of the Prime Meridian is now moving very slightly too, but the original reference for the prime meridian of the world remains the Airy Transit Circle in the Royal Observatory, even if the exact location of the line may move to either side of Airy’s meridian. These two lines can also be used to organize the Earth into hemispheres. Equator. The prime meridian divides Earth into the Eastern Hemisphere and the Western Hemisphere. 1. The prime meridian is 0 degrees longitude. The Equator separates the Northern and Southern Hemispheres. The combination of meridians of longitude and parallels of latitude establishes a framework or grid by means of which exact positions can be determined in reference to the prime meridian and the Equator: a point described as 40° N, 30° W, for example, is located 40° of arc north of the Equator and 30° of arc west of the Greenwich meridian. The most important longitude line is the Prime Meridian which runs vertically and goes through Greenwich, England. It is latitude 0. This is similar to the way the Equator serves as the 0 latitude line and … By comparing thousands of observations taken from the same meridian it's possible to build up an accurate map of the sky. That is the dividing line between east and west longitudes. And telescope were originally proposed by the seventh Astronomer... what is the origin for measuring position... 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