In 1763 the poet and philosopher Christian Mayer was appointed court astronomer by Elector Carl Theodor after he had set up an observatory with a movable dome on the roof of the Schwetzingen palace in 1761 and inside with a Lepaute clock and a canivet quadrant. This Schwetzingen observatory was also the zero point of the approximately 12 km long "Base Palatina", a section of the axis that runs to the Königstuhl in Heidelberg. This formed the baseline for surveying the Electoral Palatinate, an area of 360 square kilometers. Christian Mayer worked out the "Charta Palatina" from 1764-72 as the first attempt of this kind in Germany.
Even today, the survey is attested to be astonishingly accurate.
33 comments
Heide said:
Even today, the survey is attested to be astonishingly accurate.
Heide replied to Heide:
Léopold said:
Heide replied to Léopold:
Gudrun said:
tiabunna said:
Ulrich John said:
sea-herdorf said:
HBM ins Badische und schöne Grüße und eine gute Woche
Erich
Roger (Grisly) said:
The things you learn on IP !
HBM and a great week
©UdoSm said:
Edna Edenkoben said:
HBM, Heide, und eine wunderschöne herbstwoche dir.
Annemarie said:
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David Slater (Spodde… said: