Coordinates given in WikiPedia indicate a longitude of 21 degrees east. This puts the point at which this coordinate is set east of the 20 degree line.
east
Fifteen degrees east longitude
That point is near the western coast of the southern Caspian Sea, about 44 km south of Baku, Azerbaijan.
The imaginary line is called the Prime Meridian.
100 degrees W is not part of the dividing line between hemispheres. The Prime Meridian (zero longitude) and the 180 degrees meridian are.
The Asian Continent is both the furthest East as well as the furthest West. The exact spot that has both of those qualities. The Pacific ocean contains the immaginary line that is 180 degrees from the line of 0 degrees longitude. That is the line that is furthest East and also West of Greenwich, England which has the Prime Meridian. And, on the other side of the world, that line goes through Russia, as well as some islands in the Pacific Ocean.
All the Warsaws in the US are far west of it. Warsaw, Poland is a few degrees east of it.
80 degrees east longitude
121 degrees east longitude
Fifteen degrees east longitude
The Ural Mountains lie almost exactly on the 60 degrees east line of longitude.
Whether travelling to the West or to the East from the Prime Meridian (zero Longitude) the International Date Line is 180 degrees Longitude.
Lima, the capital of Peru, is east of 80 degrees W longitude.
the direction that longitude run is 0 the 180 degrees and also east and west
120 degrees east
Longitude is the number of degrees east or west along a line of latitude from the prime meridian.
23 degrees east
180 degrees east/west longitude