It's the Greenwich meridian
This is the latitude and longitude of London, England.
89 degrees
London, UK has a longitude of 0 degrees E. This longitude line is known as the Prime Meridian and it runs through the Royal Observatory in Greenwich, London.
The Prime Meridian, located at 0 degrees longitude, is an imaginary line that runs from the North Pole to the South Pole, passing through Greenwich, London. It serves as the starting point for measuring longitude around the globe.
The prime meridian in located at 0 degress longitude, and passes through Grenich, England.
Everything from 1 degree 50 minutes east to 8 degrees 13 minutes west. But the Prime Meridian, at zero degrees, is defined as the location of the British Royal Observatory in Greenwich, England.
London
London.
Difficult to explain without pictures, but here goes.... Imagine a circle drawn around the earth, from North to South and passing through both the North and South poles. This called a meridian, or Great Circle. A series of these circles can be drawn, each one being one degree apart, around the circle of the equator, and there would then be 360 such circles. The longitude of any place on earth is measured by how many degrees around is the meridian which passes through it. The starting point for this measurement could be anywhere on earth, but because of Britain's history as a major empire and sea power the starting point is in Greenwich, London. So, the longitude of Greenwich, London is 0 degrees.
That would be Greenwich.
The latitude and longitude of Big Ben clocktower in London is 52 degrees North latitude and O degrees longitude.
The longitude of Greenwich Observatory, near London, England. Check out GMT.