Charles Dillon Perrine
Early Life and Education
Charles Dillon Perrine was born on July 28, 1867, in Steubenville, Ohio. His early education was primarily focused on the sciences, with a particular emphasis on physics and mathematics.
Career
Perrine began his career as an astronomer at the Lick Observatory in California. He worked there from 1893 to 1909. During his time at the Lick Observatory, Perrine discovered two moons of Jupiter, today known as Himalia and Elara. He also discovered several comets and minor planets.
In 1909, Perrine moved to Argentina to become the director of the Cordoba Observatory. He held this position until his retirement in 1936. During his time in Argentina, Perrine worked on determining the positions and proper motions of southern stars and nebulae.
Contributions to Astronomy
Perrine's most notable contributions to astronomy were his discoveries of the Jovian moons, Himalia and Elara, and his work on the positions and proper motions of southern stars and nebulae. He also made significant contributions to the study of comets and minor planets.
Later Life and Death
After his retirement in 1936, Perrine continued to live in Argentina. He died on June 21, 1951, in Villa General Mitre, Argentina.
Legacy
Perrine's work has had a lasting impact on the field of astronomy. His discoveries of the Jovian moons, Himalia and Elara, have contributed to our understanding of the Jovian system. His work on the positions and proper motions of southern stars and nebulae has also been instrumental in mapping the southern sky.