In which century did Asaph Hall III work?
18th Century
19th Century
20th Century
21st Century
Answer
Asaph Hall III was a 19th century astronomer and mathematician. He is best known for his discovery of the moons of Mars, Phobos and Deimos, in 1877. Hall also made important contributions to the field of celestial mechanics, and he was a member of the American Philosophical Society.
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