200 YEARS IN 24 HOURS – “Solar observation is indispensable to determine the moment of noon »

Louis Moinet | News

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200 Years in 24 Hours

Observation – Sun

Spectacular fiery particles licking the edges of the incandescent star… The Sun is magical to observe, but BE CAREFUL to do so only using specially designed protective filters.

Back in 1848, Louis Moinet wrote: “Solar observation is indispensable in order to precisely determine the moment of noon in the place where one is operating, as a point of departure for observing and calculating longitudes.”