Rauenberg

About

Rauenberg (German pronunciation: [ˈʁaʊənˌbɛʁk] ) is a triangulation station located at Tempelhof, in the German city of Berlin. It was formerly used for mapping purposes and is now marked by a monument. It was first used in 1846.

The inscription on the east side of the monument translates as follows:

Longitude 31° 02' 04'' 928 to the east of Ferro

Azimuth Rauenberg - Berlin Marienkirche 19° 46' 04'' 87

The Rauenberg primary triangulation point is the starting point for the calculation of geographic coordinates of the Prussian main triangular mesh spatial reference system ( Hauptdreiecksnetz ). As the origin, it defines the location and orientation of the modern German triangular mesh spatial reference system in relation to the reference surface of a chosen Bessel ellipsoid.

Latitude and longitude (location) as well as the azimuth (orientation) are derived from astronomical measurements of the years 1853 and 1859.