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1. Swedish astronomer who devised the centigrade thermometer (1701-1744)
   - Anders Celsius
    
2. Temperature measurement on the Celsius scale (where water freezes at zero degrees and boils at 100 degrees; unit divisions are equal to the kelvin, with zero kelvin being -273.15 C)
   - centigrade, C

Type of: astronomer, stargazer, uranologist

Encyclopedia: Celsius Celsius, Anders