New Hampshire Astronomical SocietyApril 10th in Astronomy and Space Science
 | 1813 | French-Italian astronomer and mathematician Joseph-Louis Lagrange dies. He made important contributions to the fields of differential equations, linear algebra, and number theory. His work in astronomy included an understanding of lunar motion, the effects of planets on cometary orbits, and a solution to the three body problem. The latter work showed that there are stable points near the orbit of any body where smaller bodies can remain almost indefinitely. Today these are called Lagrange Points. |
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