A pseudocylindrical, equal area projection.
True along latitudes 40°30’ North and South.
Scale is constant along any given latitude and the same for the latitude of opposite sign.
Free of distortion only at latitudes 40°30’ North and South at the central meridian.
Thematic and other world maps in numerous atlases and textbooks and for sheet maps.
Presented by Max Eckert (1868-1938) of Germany in 1906.
Specify the center longitude parameter to center the map projection.