e. c. pickering

Science Dictionary
Pickering   (pĭk'ər-ĭng)  Pronunciation Key 
American astronomer who made many innovations in the equipment used to observe and measure the distance of stars. In 1884 he published the first catalog of stellar magnitudes. His brother William Henry Pickering (1858-1938) discovered Phoebe, the ninth moon of Saturn (1899), and predicted the existence of Pluto (1919).
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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