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Anders Celsius
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Anders Celsius, detail from a drawing by an unknown artist, 18th century.
Anders Celsius, detail from a drawing by an unknown artist, 18th century.

Anders Celsius

Swedish astronomer
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Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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History

Anders Celsius (born November 27, 1701, Uppsala, Sweden—died April 25, 1744, Uppsala) was an astronomer who invented the Celsius temperature scale (often called the centigrade scale). Celsius was professor of astronomy at Uppsala University from 1730 to 1744, and in 1740 he built the Uppsala Observatory. In 1733 Celsius published a collection of 316 observations of the aurora borealis, or northern lights, made by himself and others from 1716 to 1732. He advocated the measurement...

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