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11 results.
Site After Clearance 4Series II: Buildings and Grounds
Site Before Clearance 2Series II: Buildings and Grounds
Constellations 39:2172 (2008-003)Series VI: Yerkes Observatory
Constellations 39:2305 (2008-003)Series VI: Yerkes Observatory
Constellations 60:2168 (2008-003)Series VI: Yerkes Observatory
Constellations 65:2156 (2008-003)Series VI: Yerkes Observatory
Informal 2Series I: Individuals and Groups
M42, NGC 1976 106:27 (2008-003)Series VI: Yerkes Observatory
Main Observatory 29:2087 (2008-003)Series VI: Yerkes Observatory
Main Observatory 32:2084 (2008-003)Series VI: Yerkes Observatory
Main Observatory 32:2088 (2008-003)Series VI: Yerkes Observatory