Ole Rømer
Danish astronomer and instrument maker
Born
September 25th, 1644
380 years ago
Died
September 19th, 1710
314 years ago — 65 years old
Category
Scientists & Innovators
Country
Denmark
Links & References
Significant contributions were made to astronomy and timekeeping. Developed the first reasonably accurate measurement of the speed of light through observations of Jupiter's moon Io. Built improved telescopes and contributed to the development of astronomical instruments. Served as a professor of astronomy at the University of Copenhagen.
Measured the speed of light in 1676
Improved astronomical instruments
Served as professor of astronomy
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