Question 1: What exactly does longitude mean? Longitude is a geographical term, which usually refers to the ordinate of the spherical coordinate system, specifically, the degree of a place on the earth from the north-south line called the prime meridian to the east or west. According to international regulations, the longitude of the original site of Greenwich Observatory in London, England is set at 0 longitude, and then it extends to the left and right. Time zones in different places are also divided, with a difference of one hour every 15 longitude.

Question 2: What do you mean by latitude and longitude? Latitude and longitude combine to form a coordinate system. Known as the geographical coordinate system, it is a spherical coordinate system that uses the sphere of three-dimensional space to define the space on the earth, and can mark any position on the earth.

Latitude, like longitude, is an auxiliary line assumed by human beings for the convenience of measurement, which is defined as the trajectory formed by a point on the earth's surface with the rotation of the earth. Any latitude is round and parallel to each other. The length of latitude is the circumference of the equator multiplied by the cosine of latitude, so the longest latitude at the equator, the farther away from the equator, the shorter the circumference, and it will shrink to zero at the poles. From the equator to the north and south at 90 degrees, they are called north latitude and south latitude respectively, and are represented by "N" and "S" respectively.

Meridian, also known as meridian, is an auxiliary line assumed by human beings for the convenience of measurement, and is defined as a semi-circular arc on the great circle connecting the north and south poles on the earth's surface. Any two meridians are equal in length and intersect at the North Pole and the South Pole. Each meridian has its corresponding numerical value, which is called longitude. The meridian represents the north-south direction.

The origin of meridian naming: "In the apparent motion trajectory of a celestial body, all points on the same meridian appear at the same time as the upper meridian (noon) and the lower meridian." When different meridians have different places. The east is early and the west is late.

Question 3: Excuse me, what do you mean by latitude and longitude? How to use latitude and longitude is an auxiliary line assumed by human beings for the convenience of measurement, which is defined as the trajectory formed by a point on the earth's surface with the rotation of the earth. Any latitude is round and parallel to each other. The length of latitude is the circumference of the equator multiplied by the cosine of latitude, so the longest latitude at the equator, the farther away from the equator, the shorter the circumference, and it will shrink to zero at the poles. Latitude indicates the east-west direction. From the equator to the north and south at 90 degrees, they are called north latitude and south latitude respectively, and are represented by "N" and "S" respectively.

Arctic Circle at Important Latitude (66 33' 38 N)

Tropic of Cancer (23 degrees 26 minutes 22 seconds north latitude)

Equator (0° n)

Tropic of Capricorn (23 degrees 26 minutes 22 seconds)

Antarctic Circle (66 33' 38 S)

Different lengths (the farther from the equator, the shorter the latitude)

East longitude is positive and west longitude is negative. Longitude is the degree of a place on the earth from the north-south line called the prime meridian to the east or west. The longitude of the prime meridian is 0, and the longitude of other places on the earth is east longitude 180 or west longitude 180. This line is chosen as the prime meridian, which is different from the latitude with the equator as the natural starting point and the longitude without the natural starting point. British cartographers used the meridian passing through Greenwich Observatory in London as the starting point, and other countries or people used other meridians as the starting point in the past, such as Rome, Copenhagen, Jerusalem, St. Petersburg, Pisa, Paris and Philadelphia. Greenwich meridian was officially designated as the starting point of longitude at the international prime meridian conference in 1884. East longitude 180, that is, west longitude 180, is approximately equivalent to the international international date line. There is a day difference between the dates on both sides of international international date line.

Longitude refers to the dihedral angle formed by the meridian plane passing through a place and the prime meridian plane. The longitude east of the prime meridian is called east longitude, and the longitude west of the prime meridian is called west longitude. East longitude is represented by "e" and west longitude by "w".

Every degree of longitude is divided into 60 minutes and every minute into 60 seconds. So the longitude is usually like this: 23 27' 30 East or 23 27' 30 West. In a more accurate longitude position, the second is expressed as a decimal of minutes, for example, East longitude 23 27.500', but there is also usage and its decimal: East longitude 23.433. Sometimes the western longitude is written as a negative number: -23.433. But occasionally people write the east longitude as a negative number, but this is quite unusual.

Longitude and latitude together determine the exact location of a place on the earth.

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Question 5: What do you mean by longitude?

Question 6: What do you mean by latitude and longitude? In order to accurately display the position of every place on the earth, people assume a coordinate system for the earth's surface, that is, latitude and longitude lines. So, the most

How did the first longitude and latitude lines form? How to measure? In 344 BC, Alexander crossed the sea and invaded, then moved eastward. Military geographer Nierkus searched for information along the way and prepared to draw a "map of the world". He found that on the route of Alexander's eastward expedition, from west to east, the change of seasons was similar to the length of sunshine. So he made an important contribution-for the first time, he drew a parallel line on the earth, starting from the Strait of Gibraltar, along the torus and Himalayas, and reaching the Pacific Ocean. Alexander's empire was a flash in the pan and soon collapsed. But in Alexandria, Egypt, a famous library appeared. Eratosthenes, a curator for many years, is well-read and proficient in mathematics, astronomy and geography. He calculated that the circumference of the earth was 46,250 kilometers and drew a map of the world with 7 meridians and 6 latitudes. 15 19- 1522, Magellan's fleet traveled around the world, passing through the Atlantic Ocean, the Pacific Ocean and the Indian Ocean, and finally returned to Spain, which proved that the earth is a sphere and laid the foundation of latitude and longitude.

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Meridian, also known as meridian, is an auxiliary line assumed by human beings for the convenience of measurement, and is defined as a semi-circular arc on the great circle connecting the north and south poles on the earth's surface. Any two meridians are equal in length and intersect at the North Pole and the South Pole. Each meridian has its corresponding numerical value, which is called longitude. The meridian represents the north-south direction. The origin of meridian naming: "In the apparent motion trajectory of a celestial body, all points on the same meridian appear at the same time as the upper meridian (noon) and the lower meridian." When different meridians have different places. The east is early and the west is late. Important Meridian Primitive Meridian Paris Meridian 180 Longitude 20 West 160 East.

latitude line

Latitude, like longitude, is an auxiliary line assumed by human beings for the convenience of measurement, which is defined as the trajectory formed by a point on the earth's surface with the rotation of the earth. Any latitude is round and parallel to each other. The length of latitude is the circumference of the equator multiplied by the cosine of latitude, so the longest latitude at the equator, the farther away from the equator, the shorter the circumference, and it will shrink to zero at the poles. Latitude indicates the east-west direction. Important latitude Arctic Circle (66 33' 38 N) Tropic of Cancer (23 26' 22 N) Equator (0° N) Tropic of Cancer (23 26' 22 S) Antarctic Circle (66 33' 38 S).

longitude

Longitude is the degree of a place on the earth from the north-south line called the prime meridian to the east or west. The longitude of the prime meridian is 0, and the longitude of other places on the earth is east longitude 180 or west longitude 180. This line is chosen as the prime meridian, which is different from the latitude with the equator as the natural starting point and the longitude without the natural starting point. British cartographers used the meridian passing through Greenwich Observatory in London as the starting point, and other countries or people used other meridians as the starting point in the past, such as Rome, Copenhagen, Jerusalem, St. Petersburg, Pisa, Paris and Philadelphia. 1884, Greenwich Meridian was officially designated as the starting point of longitude. East longitude 180, that is, west longitude 180, is approximately equivalent to the international international date line. There is a day difference between the dates on both sides of international international date line. Longitude refers to the dihedral angle formed by the meridian plane passing through a place and the prime meridian plane. The longitude east of the prime meridian is called east longitude, and the longitude west of the prime meridian is called west longitude. East longitude is represented by "e" and west longitude by "w". Every degree of longitude is divided into 60 minutes and every minute into 60 seconds. So the longitude is usually like this: 23 27' 30 East or 23 27' 30 West. In a more accurate longitude position, the second is expressed as a decimal of minutes, for example, East longitude 23 27.500', but there is also usage and its decimal: East longitude 23.433. Sometimes the western longitude is written as a negative number: -23.433. But occasionally people write the east longitude as a negative number, but this is quite unusual. Longitude and latitude together determine the exact location of a place on the earth. Every latitude >>