Arabian sea
prime meridian.
prime meridian
dude, your funny 0*
Longitudinal lines run from pole to pole, parallel to the Prime Meridian. They help locate positions east or west of the Prime Meridian on a map or globe.
The latitude and longitude references are lines, not points. The reference for latitude is the line that forms a circle and consists of all points with zero latitude. That line is called the "equator". The reference for longitude is the line that forms a semi-circle and consists of all points with zero longitude. That line is called the "Prime Meridian".
The Prime Meridian is a Longitudinal line. That is, it runs North and South between the poles. Latitudinal lines run parallel to the equator and measure distance North or South of the equator. They run East and West, perpendicular to longitudinal lines. The Prime Meridian is at all latitudes.
meridian
Completely:AsiaAustraliaPartly:EuropeAfricaAntarcticaNorth America
Zero degrees latitude: Equator Zero degrees longitude: Prime Meridian
For reference.
India lies in the eastern hemisphere with reference to the prime meridian.
Use a sextant