Marie-Jeanne de Lalande

Marie-Jeanne Amélie Lefrançois de Lalande
Portrait
Born
Marie-Jeanne Harlay

1768 (1768)
Paris, France
DiedNovember 8, 1832(1832-11-08) (aged 63–64)
Paris, France
Spouse
(m. 1788)
Scientific career
FieldsAstronomy

Marie-Jeanne Amélie Lefrançois de Lalande (née Harlay; 1768 – 8 November 1832) was a French astronomer. She was a key collaborator to the works of Jérôme Lalande.

Her reputation as a scientific woman was attested by an anecdote related to Carl Friedrich Gauss: In 1806, during a military campaign in Prussia, he declared he knew but one French woman that worked in Science, Madame Lefrançois de Lalande."