Edward Charles Pickering
![Pickering in the 1880s](https://upload.wikimedia.org/wikipedia/commons/5/5d/Edward_Charles_Pickering_1880s.jpg)
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Published: 1924
Superior document: Durchmusterung of selected areas
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Published: 1899
Superior document: Annals of the Astronomical Observatory of Harvard College 44,1
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Published: 1893
Superior document: Annals of the Astronomical Observatory of Harvard College 19,2
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Published: 1923
Superior document: Durchmusterung of selected areas
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Published: 1888
Superior document: Annals of the Astronomical Observatory of Harvard College 13,2
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Published: 1891
Superior document: Annals of the Astronomical Observatory of Harvard College 26,1
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Published: 1901
Superior document: Annals of the Astronomical Observatory of Harvard College 45