Greenwich, England
Prime meridian, from which longitude is measured both east and west, is the main line of longitude.
prime meridian
A Line of longitude is an invisible line going north to south on the earth. The main one is called the prime meridian.
The equator is the origin for the lines of latitude
The main North/South line of longitude is the Prime Meridian.
By international agreement, the line that defines the origin of longitude is the Prime Meridian. It joins the north and south poles and passes through the Royal Observatory at Greenwich, England.
Lines of Longitude are imaginary lines that run from the North Pole to the South Pole. The main line of longitude, the Prime Meridian (zero longitude), passes through the Greenwich Observatory, London, England.
You might say that. The thing that makes it the "main" one is the fact that by international agreement, it's the meridian that's accepted as zero longitude. So whenever the longitude of a place is stated, you always know that the number means an angle measured from the "Greenwich Meridian".
The coordinates of the main city on the Island are : 55° 6′ 20″ N, 14° 42′ 10″
Lines of Longitude are imaginary lines that run from the North Pole to the South Pole. The main line of longitude, the Prime Meridian (zero longitude), passes through the Greenwich Observatory, London, England.
Louisiana occupies a range of longitude from about 89.067 ° west ... at the end of Main Pass southeast of Houma ... to about 94.043° west, along the line from Logansport up to the Arkansas line. That's a span of almost 5° of west longitude. Any longitude you can name that's between these two numbers passes through the state. You can draw as many or as few lines on your map between these numbers as you're comfortable with.
The Prime Meridian (0 Degrees) is located in Greenwich, England. From there, lines of longitude run both East and West all the way up to 180 degrees, on the other side of the planet.