View Images (544 items)

• ««
• «
• 7
• 8
• 9
• 10
• 11
• »
• »»

View 2 images

Objective prism plate (12): undated

View 2 images

Objective prism plate-Arcturus (13): undated

View 2 images

Copy of stellar emission spectrum no. 23-probably a reproduction of Draper's own plate (01): undated

View 2 images

Spectrum no. 24 (5): undated

View 2 images

No. 20; D186;13 (4): undated

View 2 images

No. 21; D187; 13 (6): undated

View 2 images

No. 22; D204; G; 26 (7): undated

View 2 images

17;0201;12 (1): undated

View 2 images

18;D198;12 (2): undated

View 2 images

Moon: 16 August 1862

View image

Moon: 17 August 1862

View 2 images

Moon: circa late 19th century

View image

30 Second Exposure: 1872-

View image

10-40 Second Exposure: 1872-

View image

10 Second Exposure: 1872-

View image

Last Quarter Moon: 24 August 1872

View image

Moon Photo taken with 28" telescope (1): 1872

View image

Moon Photo taken with 28" telescope (2): 1872

View image

Moon Photo taken with 28" telescope (3): 1872

View image

Moon Photo taken with 28" telescope (4): 1872

View image

Moon Photo taken with 28" telescope (5): 1872

View image

Moon Photo taken with 28" telescope (6): 1872

View image

Moon Photo taken with 28" telescope (7): 1872

View image

Moon: circa late 19th century

• ««
• «
• 7
• 8
• 9
• 10
• 11
• »
• »»