See also: 1807 in science, other events of 1808, 1809 in science and the list of 'years in science'.

Table of contents

1 Astronomy 2 Chemistry 3 Awards 4 Births 5 Deaths

Astronomy

• Carl Friedrich Gauss found methods for determining an orbit based on three observations. He also presented his least squares method

• Barium, calcium, magnesium, and strontium isolated by Sir Humphry Davy.
• Joseph Louis Gay-Lussac formulated the law of combining volumes for gases.
• John Dalton publishes New System of Chemical Philosophy, explaining his atomic theory of chemistry.

• Copley Medal: William Henry

Deaths