what does the eastern hemisphere show
From Wikipedia, the free encyclopedia. Eastern hemisphere. The Eastern Hemisphere is a geographical term for the half of the Earth that is east of the Prime Meridian (which crosses Greenwich, England, United Kingdom) and west of 180Â° longitude.he line demarcating the eastern and western hemispheres is an arbitrary convention, unlike the equator (an imaginary line encircling the Earth, equidistant from its poles) which divides the northern and southern hemispheres.