Abbé Nicolas-Louis de Lacaille, formerly sometimes spelled de la Caille, was a French astronomer and geodesist who named 14 out of the 88 constellations. From 1750 to 1754, he studied the sky at the C
Lacaille
A memorial to the Abbé de Lacaille and Thomas Maclear, at Aurora in the Western Cape of South Africa. The English portion of the inscription reads: "This is the site of the Maclear Beacon positioned in 1838 near the original North Terminal of the Arc of Meridian positioned by Abbé de Lacaille, the first surveyor to introduce Geodetic Surveying into South Africa." Open the image to see the Afrikaans portion.
Leçons elementaires d'astronomie, géométrique et physique, 1755 edition
Messier 55 is a globular cluster discovered on 16 June 1752.
Antoine-Laurent de Lavoisier, also Antoine Lavoisier after the French Revolution, was a French nobleman and chemist who was central to the 18th-century chemical revolution and who had a large influenc
Nicolas-Louis de Lacaille
…for his own use. He was the author of a number of influential textbooks and a firm advocate of Newtonian gravitational theory. His students included Antoine Lavoisier and Jean Sylvain Bailly, both of whom were later guillotined during the French Revolution. His desire to determine the distances of the planets…
Detail from Portrait of Antoine-Laurent Lavoisier and his Wife by Jacques-Louis David
The Collège des Quatre-Nations in Paris
Lavoisier conducting an experiment on respiration in the 1770s
Portrait of Lavoisier explaining to his wife the result of his experiments on air by Ernest Board