Null Island

Cartographical (only) marker at 0°N, 0°E

Null Island is the location at zero degrees latitude and zero degrees longitude, i.e., where the prime meridian and the equator intersect. Since there is no landmass located at these coordinates, it is not an actual island. The name is often used in mapping software as a placeholder to help find and correct database entries that have erroneously been assigned the coordinates 0,0. Although "Null Island" started as a joke within the geospatial community, it has become a useful means of addressing a recurring issue in geographic information science.

This keyword could refer to multiple things. Here are some suggestions: