Projection lab

Berghaus star projection: interactive map

Atlas of error · liveBerghaus StarClick or tap a country to add its outline

Click a country on the map to add its outline.Tap a country on the map to add its outline.

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Berghaus star projection at a glance

Distortion class
Equidistant
Graticule type
Interrupted azimuthal (star)
Creator
Hermann Berghaus
Year
1879
Area
Distorted (not equal-area), though only moderately
Shape
Distorted, most of all at the outer edges and in the star's points
Distances
Partially preserved: true from the map center to every point of the northern hemisphere and along the lines from the center to the tips of the points
Angles and directions
Angles are distorted; directions (azimuths) from the map center are true within the northern hemisphere

Add countries from the tools panel and drag them to other latitudes. The outline keeps its true shape and area on the globe, so any change in its size on the map shows this projection's distortion. Tissot's indicatrices and the area distortion map show the same effect across the whole world.