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Astronomy

 Subject
Subject Source: Local sources

Found in 2 Collections and/or Records:

John G. Hagen, S.J.: Publications

 Collection
Identifier: GTA-000460
Dates: 1890-1916
Found in: Georgetown University Archives / John G. Hagen, S.J.: Publications

Observatory Publications

 Collection
Identifier: GTA-000462
Scope and Contents Photochronograph and Its Application to Star Transits. Stormont & Jackson, Printers. Washinton, D.C., 1891.Suggestions Regarding the Application of the Photochronograph. Stormont & Jackson, Printers. Washinton, D.C., 1894.Photochronograph Applied to the Measure of Double Stars and Planets. Stormont & Jackson, Printers. Washinton, D.C., 1894.Sun-Spot Drawings Made at the Georgetown College Observatory in 1850, September 20-November 6 by...
Dates: 1891-1901
Found in: Georgetown University Archives / Observatory Publications