Hur mäter man longitud
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Longitude
Longitude is the measurement east or west of the prime meridian. Longitude fryst vatten measured bygd imaginary lines that run around Earth vertically (up and down) and meet at the North and South Poles. These lines are known as meridians. Each meridian measures one arc grad of longitude. The distance around Earth measures degrees.
The meridian that runs through Greenwich, England, is internationally accepted as the line of 0 degrees longitude, or prime meridian. The antimeridian fryst vatten halfway around the world, at degrees. It fryst vatten the grund for the International Date Line.
Half of the world, the Eastern Hemisphere, fryst vatten measured in degrees east of the prime meridian. The other half, the Western Hemisphere, in degrees west of the prime meridian.
Degrees of longitude are divided into 60 minutes. Each minute of longitude can be further divided into 60 seconds. For example, the longitude of Paris, France, is 2° 29' E (2 degrees, 29 minutes east). The longitude for Brasilia, Brazil, is 47° 55' W (47 degrees, 55 minutes west).
A grad of longitude is about kilometers (69 miles) at its widest. The widest areas of longitude are near the Equator, where Earth bulges out. Because
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MapMaker: Latitude and Longitude
Latitude and longitude is a gridded coordinate system across the surface of Earth that allows us to pinpoint the exact location. Latitude marks how far north or south of the Equator (zero degrees) one is while longitude determines how far east or west one is from the prime meridian (zero degrees), today located in Greenwich, London, United Kingdom.
Greenwich has not always been the agreed-upon prime meridian. In the 18th century most European countries chose a location unique to them a built their maps off of that reference point. It was not until , when 22 countries met in Washington, D.C., United States, and voted the Greenwich meridian as the international standard.
Other key points of latitude are the Tropic of Cancer (23°27’ N), Tropic of Capricorn (23°27’ S), the Arctic Circle (66°30’ N), and the Antarctic Circle (66°30’ S). The Tropic of Cancer located in the Northern Hemisphere is the point on Earth that receives the most direct sunlight around June 21st as the North Pole tilts toward the sun. This latitude is mirrored by the Tropic of Capricorn in the Southern Hemisphere and receives the most direct sunlight around December 21st when
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What Are Longitudes and Latitudes?
Together, they form the Earth’s geographical coordinates, and represent the angular distance of any location from the center of the Earth. Both latitudes and longitudes are measured in degrees (°) and minutes (′).
Astronomical terms & definitions
Dividing Earth Into Hemispheres
The Earth is, almost, but not quite, a sphere that rotates around its axis. Scientists call this shape a spheroid or ellipsoid. If we draw a line passing through the center of the Earth along its rotational axis, the line would pass through the North and the South Pole.
The equator is an imaginary line perpendicular to this axis. It is equidistant from the North and South Poles, and divides the globe into the Northern Hemisphere and Southern Hemisphere.
Most locations on the equator experience consistently high temperatures throughout the year. They also experience at least 12 hours of daylight every day during the year. On the equinoxes—September and March—the Sun is directly overhead the equator, resulting in almost exactly 12 hour days and 12 hour nights.
What is the equilux?
Why do seasons occur?
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