Jean-Alfred Gautier
Jean-Alfred Gautier or Alfred Gautier was a Swiss astronomer.Biography
He was born in Cologny. He was the son of François Gautier, merchant, and of Marie de Tournes.
He studied astronomy at the University of Geneva, then at the University of Paris. He was awarded a doctorate in celestial mechanics in Paris in 1817; his thesis was entitled Historical essay on the problem of three bodies. His academic advisors were Laplace, Lagrange and Legendre. In 1818 he worked in England with Herschel.
Back in Geneva in 1819, he was appointed astronomy professor then, in 1821, professor of advanced mathematics at the University of Geneva and director of the Observatory of Geneva. He had a new building constructed on the site in 1830 which was equipped with new instruments: an equatorial of Gambey and a meridian circle.
In 1839, visual impairments prevented him from continuing his career and he gave up his chairs to one of his pupils, Emile Plantamour.
In 1852, within a year of the publication of Schwabe's results, Gautier and three other researchers announced independently that the sunspot cycle period was absolutely identical to that of geomagnetic activity.
He married in 1826 Angélique Frossard de Saugy, then in 1849 Louise Cartier. He had no child.
Jean-Alfred Gautier died in Geneva on 30 November 1881.
