A circle is drawn from the center of The WORLD! The center of the world in this case is defined as 0,0 N and 0,0 E. Using a standard Mercator projection this is in the Gulf of Guinea as the picture shows.
It is 8015 km in radius (4980 miles). Which is a fifth of the circumference of the Earth.
What countries does it go through?
Only the countries that the 8015 km line goes through count.
For example: Togo does not count as it ranges from 693-1239 km.
For example: North Korea does not count as it is more than 8015 km away.