HE CONCLUDED THAT THE USE OF PHOTOGRAPHY IN ASTRONOMY WAS VERY PROMISING AS OPPOSED TO THE TRADITIONAL METHOD OF OBSERVATION AND RECORDING USING ONES EYE THROUGH INSTRUMENTS, AND HE, ALONG WITH SEVERAL OTHERS, DESIGNED A STELLAR CLASSIFICATION SYSTEM
EDWARD CHARLES PICKERING (1846-1919) SIGNED CARD, “Compliments of Edward C. Pickering”, on a card4 x 2.5, by the American astronomer and physicist who co-discovered the first spectroscopic binary stars and wrote the 2-volume Elements of Physical Manipulation, and who was the brother of William Henry Pickering. He was a professor of physics at MIT for 10 years and later served as director of Harvard College Observatory (1877-1919), where he made great leaps forward in the gathering of stellar spectra through the use of photography. Pickering’s work with using glass plates to photograph the sky was the start of major technological advances for astronomical photography. The card is in fine condition, with minor age toning, and the date, “1904”, written in another hand on the lower left.