Browse Items (68 total)

rosscamera.tif
Photograph of the 4-inch Ross-Fecker camera with the 4-inch Fauth refractor as the finderscope.

The instrument was a refractor of 4-inch aperture and 28-inch focal length (f/7) with a scale of 290”/mm. It held 8x10 inch glass plates covering 20…

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DSCN0160.JPG
Wood, glass, metal

In 2 wooden boxes, hand painted glass slides in mahogany wood, several with moving parts, total of 35 lantern slides. Similar collections on-line have them made of mahogany, with brass handles and movements, stamped and…

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DSCN0342.JPG
Both of these lantern slides were used by the first director, George W. Myers, at the conference opening Yerkes Observatory held October 18-21, 1897. Myers' work, "The system of Beta Lyrae" was published in the Astrophysical Journal in 1898 (vol. 7,…

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Lantern slide "Nova Geminorum no. 2 (Dr. Curtis)"
This lantern slide is marked "Property of Joel Stebbins." One of several lantern slides so marked, they all seem to connect to his dissertation completed in 1903. This slide is found in the Observatory lantern slide collection and is marked Sp22.

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countingmachine.jpg
Lantern slide of the Observatory's counting machine. This piece of equipment was used by the third director, Robert Baker, to analyze photographic plates of the Milky Way during his research 1938-1951. The lantern slide is part of the Observatory's…

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30inch1915.jpg
Lantern slide of the 30-inch reflecting telescope purchased in 1914. The mirror had a focal length of 20-inches and was made by John Brashear. The mount might also be by Brashear. This lantern slide is part of the Observatory's collection and is…

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30inch1925.jpg
Lantern slide of the 30-inch reflecting telescope after it was rebuilt between 1925-1927. The dual-channel photoelectric photometer hangs on the end of the telescope. The rebuilt telescope was located in a 15-foot domed Observatory located on…

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eclipsestation1918.jpg
One of over 1000 lantern slides in the Observatory's collection. Labelled "E1" this is a photograph of the photoelectric photometer Dr. Joel Stebbins and Dr. Jakob Kunz used to observe the solar eclipse on June 8, 1918. The photograph also appeared…

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img001.jpg
Postcard looking down Mathews Avenue at the south side of the Observatory. Behind the Observatory are visible the weather station, a small observatory containing a 4-inch refractor, and several small brick piers for portable instruments. The…

Brandis & Sons sextant
Wood, metal, glass

Wood box, 9 7/8 x 9 7/8 x 5 ½ inch, with hinged lid, two hook latches and metal handle. Maker’s laminated paper label and university ID tag on inside. While the last inspection date on this sextant is 1939, the last sextant…

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