Alvan Clark
Astronomer and optician who constructed telescopes
Born
March 8th, 1804
221 years ago
Died
1887
138 years ago — 83 years old
Category
Scientists & Innovators
Country
United States
Links & References
Contributions to astronomy included the construction of some of the largest telescopes of the 19th century. Worked extensively on improving refracting telescopes, especially the design of the objective lens. Partnered with his son to establish a successful telescope-making business. Involved in the discovery of the fourth moon of Mars in 1877.
Constructed the 18.5-inch refractor telescope at the University of Chicago
Discovered the fourth moon of Mars
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