Portalban, in the line of sight of the Neuchâtel Observatory

The association “EspaceTemps”, which wants to safeguard the scientific heritage of the former Neuchâtel Observatory, inaugurated the renovated Portalban calibration sight this afternoon. For the Federal Office of Topography swisstopo, it is a 1st category marker of the national triangulation, for drawing up the map of the country. But let’s go back to 1861, when this calibration sight had another function…

Report on the television channel CanalAlpha (in French)

Calibration sight of Portalban to calibrate the meridian telescope of the Neuchâtel Observatory. It was renovated during the year 2020 by the EspaceTemps Association.

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