1
10
71
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Selenium cell in wooden box
https://d1y502jg6fpugt.cloudfront.net/1868/archive/files/555f6fe955e3f5b3223606892a6cd8f0.tiff?Expires=1712793600&Signature=E2ATMn7V09OHfM4E28C-6dNwOOTdxv1xypEmTVfAXPCYGhH-i1-m66rg-w4bqZxWn8oXHC7ksb0TbGBkQaNcxnvRrw3W2N9Qtsvl0muWwt2x8m-SCHJvxUd8reZEWJ99r1ftDe4D0QNGSDKzqX%7E1ZfCO4f31xoMQYqThCCjxh2QYJQaKJ3NTHN6jnpUXqbaDvLu10bGwQ-0SBOQY7OgaCJhM2ZI3yk5htz1L9M0NlXRCQTHucGXgClARIpgPWQT4TqkQkF6TkKiAOaPDrQrLAKXpXj-%7EgL1iBIwPm9Mii3k0MLlC6lOIGxzB0giZkHNGso%7EF%7E-j4jABdA9PLKdAJSg__&Key-Pair-Id=K6UGZS9ZTDSZM
478a86a366d095ef9e837c5b09b91a7a
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Historic picture of selenium cell
Description
An account of the resource
Photograph of the Giltay cell from the 1911 article in Popular Astronomy, “The measurement of the light of stars with a selenium photometer with an application to the variation of Algol.”
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Physical apparatus
Description
An account of the resource
In addition to equipment attached to the telescope, astronomers, especially in the "new astronomy," often had laboratory equipment that could be found in a physics laboratory. Much of this equipment at Illinois was related to the development of photoelectric photometry. The photometer turned the star's light into electric current and much of this equipment was need to measure the electrical output of the photometer.
Contributor
An entity responsible for making contributions to the resource
Department of Astronomy
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Selenium cell
Subject
The topic of the resource
Astronomy, photometry
Description
An account of the resource
Wooden box measuring 10 cm x 8 cm x2.5 cm, flips open to expose selenium cell. Cell measures 3.0 cm by 5.0 cm. Stebbins described the Giltay selenium cells he and Brown used in the selenium photometer as “Two wires are wound close together in a double spiral about a flat insulator, and the spaces on one face are filled with selenium which has been properly sensitized.” A photograph of the Giltay cell was included in the 1911 article in Popular Astronomy, “The measurement of the light of stars with a selenium photometer with an application to the variation of Algol.”
The selenium cell photometer is historically significant and was used by Brown and Stebbins starting in 1907. Stebbins met Brown at a physics department open house where Brown ran a demonstration using a selenium cell to ring a bell. That apparatus, and selenium cells housed in a wooden case, are found for sale in Max Kohl catalogs .
Creator
An entity primarily responsible for making the resource
Giltay of Delft, Holland
Source
A related resource from which the described resource is derived
Replacement: Michael Svec donated in 2021 a selenium cell in a wooden box. The cell measures 3 cm x 5 cm and has approximately 18 wires per centimeter which is consistent with the Giltay cell’s that Stebbins bought and used from AB Porter in Chicago, in July 1907 for $20. Stebbins and Brown used at least two Giltay cells numbered 93 and 94. The original cells are lost. This replacement cell does have a resistance that decreases when exposed to light, so it is function.
Date
A point or period of time associated with an event in the lifecycle of the resource
Circa 1910
Language
A language of the resource
English
Type
The nature or genre of the resource
physical object
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
University of Illinois Observatory, Urbana, IL
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6883962b10e3ea341f096ad681c8ee19
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Time
Description
An account of the resource
One of the oldest responsibilities of an astronomer was the measurement of time. Before telegraph and radios, each observatory had special equipment and clocks for the precise determination of local solar and local sidereal time. These clocks were much more precise than the typical pendulum clocks found in the home. This collection contains the clocks, time recording devices and weather instruments necessary for the accurate measurement of the local time.
Contributor
An entity responsible for making contributions to the resource
Department of Astronomy
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
2-day Marine Chronometer
Subject
The topic of the resource
Astronomy
Clocks
Description
An account of the resource
Mahogany wood, brass, silver, glass
Chronometer of 56-hour duration is set in gimbals in a mahogany box. Serial number #2805. John Bliss and Company was active 1857-1956.
Marine chronometer within wood box with hinged lid measuring 7-inches by 7-inches by 7-inches. Includes a label with University of Illinois in script. A pendulum clock would not work well on an ocean vessel. Knowing the time to within a second was critical for marine vessels to determine their position and navigate. A 19th century marine chronometer used a balance wheel to regulate the time. In addition they were gimbaled within the box to counter the movement of the ship.
A photograph from Oct 5, 1957 shows a box chronometer sitting next to radio receiving equipment that was being used to track Sputnik. Unknown which chronometer but it shows that at least one existed until 1957. Stebbins listed as worth $50 in 1908.
Creator
An entity primarily responsible for making the resource
John Bliss & Company, New York
Source
A related resource from which the described resource is derived
Harvard has an example, serial number 2620 dates 1880s at http://waywiser.fas.harvard.edu/objects/2763/56hour-marine-chronometer
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana, Il
Date
A point or period of time associated with an event in the lifecycle of the resource
Circa 1885
Contributor
An entity responsible for making contributions to the resource
Michael Svec
Rights
Information about rights held in and over the resource
copyright Michael Svec
Language
A language of the resource
English
Type
The nature or genre of the resource
physical object
Identifier
An unambiguous reference to the resource within a given context
University of Illinois Observatory Collection A128
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
University of Illinois Observatory, Urbana, Illinois
chronometer
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5b2b53aca93cfe5efdea7a9d067d25e7
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Physical apparatus
Description
An account of the resource
In addition to equipment attached to the telescope, astronomers, especially in the "new astronomy," often had laboratory equipment that could be found in a physics laboratory. Much of this equipment at Illinois was related to the development of photoelectric photometry. The photometer turned the star's light into electric current and much of this equipment was need to measure the electrical output of the photometer.
Contributor
An entity responsible for making contributions to the resource
Department of Astronomy
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Kunz Photoelectric cells
Subject
The topic of the resource
Astronomy
photometry
Description
An account of the resource
The photocell is hand blown glass or quartz. Within in the cell is an alkali metal (lithium, sodium, or potassium) that covers the inside and is a cathode emitting electrons when illuminated. A well insulated wire forming a ring centered in the bulb acts as an anode for collecting the emitted electrons. The inside of the bulb is filled with an inert gas such as helium, neon or argon.
The cell with number 15 (Wisconsin inventory number) bear Stebbins’ number 54. It is a typical glass tube in almost original condition.
The second cell is number 23 in Wisconsin’s inventory and bears Stebbins’ number QK 37-4 indicating it is a quartz tube with potassium hydride as the photo-cathode material. It was produced in 1937. This tube comes in an original cardboard box labeled with QK-37-1 and QK37-4. The box is also historically significant.
Creator
An entity primarily responsible for making the resource
Jakob Kunz, University of Illinois Department of Physics
Observatory
Publisher
An entity responsible for making the resource available
On loan from the University of Wisconsin Department of Astronomy.
Date
A point or period of time associated with an event in the lifecycle of the resource
1915 and 1937
Language
A language of the resource
Englsih
Type
The nature or genre of the resource
physical object
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
University of Illinois Observatory, Urbana, Il
astronomical photometry
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7ef4e9f874466d6fca96d78a0bf5afb8
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Replica Medals awarded to Dr. Joel Stebbins
Subject
The topic of the resource
Astronomy
Medal
Description
An account of the resource
The original medals were donated by Robert Stebbins, grandson of Joel Stebbins, to the University of Wisconsin-Madison. Replicas were produced in 2015 for the University of Illinois Observatory.
Draper Medal awarded by the National Academy of Sciences, 1915. "In recognition of his work on application of the selenium cell to stellar photometry." Medal reads on the back "Presented by the National Academy of Science to Joel Stebbins." 6.8 cm in diameter.
Bruce Medal awarded by Astronomical Society of the Pacific in 1941. "For his many contributions to the field of astronomy through development and application of photoelectric photometry." Medal reads on the back "This medal founded AD MDCCCXCVII by Catherine Wolfe Bruce is presented to Joel Stebbins for distinguished service to astronomy 1941" 6.0 cm in diameter.
Gold Medal awarded by the Royal Astronomical Society in 1950. Conferred in London for his lifetime contributions to astronomy. This is the highest award given by the RAS. 4.7 cm in diameter.
Centennial Medal of the National Academy of Science, in 1963. On the centennial of the founding of the NAS, this medal was awarded to Academy members and medalists of which Dr. Stebbins was both. 7.5 cm in diameter.
Creator
An entity primarily responsible for making the resource
Replica medals by Rick Vander Geest, University of Wisconsin Department of Astronomy.
Publisher
An entity responsible for making the resource available
Originals at the University of Wisconsin university archives.
Date
A point or period of time associated with an event in the lifecycle of the resource
2015
Rights
Information about rights held in and over the resource
Images copyright Michael Svec.
Language
A language of the resource
English
Type
The nature or genre of the resource
physical object
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Replicas: University of Illinois Observatory, Urbana, Illinois
Source
A related resource from which the described resource is derived
Award of Draper Medal: Proceedings of the National Academy of Sciences of the United States of America
Vol. 1, No. 5 (May 15, 1915), p. 328
Bruce Medalist: Joel Stebbins: http://physastro.sonoma.edu/BruceMedalists/Stebbins/
Awarding of the RAS medal: http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1950MNRAS.110..179.&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf
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Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
3240
Width
4320
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Unitron camera
Format
The file format, physical medium, or dimensions of the resource
image/jpg
Type
The nature or genre of the resource
still image
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Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
3240
Width
4320
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Duetron double eyepiece
Rights
Information about rights held in and over the resource
Copyright Michael Svec
Format
The file format, physical medium, or dimensions of the resource
image/jpg
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Instrument collection
Description
An account of the resource
For most of human history, our eyes served as the recording device for our observations of the night sky. Later, developments in photography began to change how we viewed and documented astronomical observations. The instrument collection consists of auxiliary instruments used on the 12-inch equatorial refractor. Some of the instruments such as the filar micrometer and spectroscope were designed for use with human eye as the detector, others such as the plate camera used film.
Contributor
An entity responsible for making contributions to the resource
Department of Astronomy
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Astro-Camera 220 and Duetron double eyepiece
Description
An account of the resource
Wooden box (9 ½ x 7 x 7) with hinge lid, three 2-sided film holders. It takes 2 ¼-inch by 3 ¼-inch glass plates or sheets of film. An air-operated shutter types speeds of 1/10 to 1/90 second in addition to bulb and time. Comes with ground-glass focusing back, and extension tube. A air-shutter release, 30 mm f.l. eyepiece and instructions missing. Sold for $69.50 in 1954. Manual online at http://geogdata.csun.edu/~voltaire/classics/unitron/astrocamera220.pdf.
The Duetron double eyepiece sold for $23.40 in 1954.
It was donated to the University by Mrs. Ruth Scott of Chrisman Illinois in 1971 and valued at $70.
Creator
An entity primarily responsible for making the resource
Unitron, Bohemia, New York
Source
A related resource from which the described resource is derived
Info on line at http://www.company7.com/library/unitron/unitron_astro_camera.html
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois
Date
A point or period of time associated with an event in the lifecycle of the resource
circa 1953
Contributor
An entity responsible for making contributions to the resource
Michael Svec
Rights
Information about rights held in and over the resource
Copyright, Michael Svec
Format
The file format, physical medium, or dimensions of the resource
image/jpg
Language
A language of the resource
English
Type
The nature or genre of the resource
physical object
Identifier
An unambiguous reference to the resource within a given context
University of Illinois Observatory collection A238
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
University of Illinois Observatory, Urbana, Illinois
Subject
The topic of the resource
Astronomy
camera
optical instruments
-
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Rumford Medal
Format
The file format, physical medium, or dimensions of the resource
image/jpg
Type
The nature or genre of the resource
physical object
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Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Rumford Medal
Description
An account of the resource
Gold medallion in 3.5 inches square leather case with green velvet. interior. Metal approximately 3 inches diameter, made of gold. Front contains left facing profile of Lord Rumford. Reads “Born 1753 * Benjamin Count Rumford * Died 1814.” Back reads “Rumford medal for discoveries in light or heat” and “Awarded by the American Academy of Arts and Sciences to Joel Stebbins for his development of the Selenium Photometer and its applications in Astronomy 1913.”
Donated to the University by Robert Stebbins, grandson of Dr. Joel Stebbins.
Creator
An entity primarily responsible for making the resource
Bigelow Kennard & Company, Boston
Publisher
An entity responsible for making the resource available
Found in the University Archive’s special storage, Joel Stebbins papers, RS 15/3/21.
Date
A point or period of time associated with an event in the lifecycle of the resource
1913
Rights
Information about rights held in and over the resource
University of Illinois archives
Language
A language of the resource
English
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
University of Illinois Observatory, Urbana, Illinois
Type
The nature or genre of the resource
physical object
Subject
The topic of the resource
Astronomy
Medal
-
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Omeka Image File
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
24 ft Dome and transit house shutter tracings
Description
An account of the resource
Three tracings by Warner and Swasey for the University of Illinois.
1) 24 ft. Dome section, tracing B2860, dated April 21, 1896. Stamped with "University of Illinois Observatory."
2) 24 ft. Dome and 12-in Equatorial General Dimensions, tracing B-2859, dated April 20, 1896.Stamped with "University of Illinois Observatory."
3) Transit house shutter, tracing B-2883, Job 6351, dated May 1, 1896. Purchased by Astronomy Department in 1986.
Creator
An entity primarily responsible for making the resource
Warner & Swasey, Cleveland Ohio
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana
Date
A point or period of time associated with an event in the lifecycle of the resource
1896
Contributor
An entity responsible for making contributions to the resource
Michael Svec
Rights
Information about rights held in and over the resource
Copyright, Michael Svec
Format
The file format, physical medium, or dimensions of the resource
image/jpg
Language
A language of the resource
English
Type
The nature or genre of the resource
Document
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
University of Illinois Observatory, Urbana, Illinois
Subject
The topic of the resource
Astronomy
Architecture
-
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The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Photographs
Description
An account of the resource
This collection contains photographs of the Observatory from a variety of sources. Included are postcards, images from publications, and photographs from the Observatory's lantern slide collection.
Contributor
An entity responsible for making contributions to the resource
Department of Astronomy
Personal collection of Michael Svec
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
postcard
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Post card 'View of South Campus University of Illinois'
Subject
The topic of the resource
Astronomy
Campus
Photography
Description
An account of the resource
Color postcard from 1914 showing the south campus. Taken from University Hall looking south. Burrill Avenue is under the trees long the center right. The Auditorium is center. The Observatory is the white dome to the left of the Auditorium.
Creator
An entity primarily responsible for making the resource
Unknown
Publisher
An entity responsible for making the resource available
Personal collection of Michael Svec
Date
A point or period of time associated with an event in the lifecycle of the resource
circa 1914
Contributor
An entity responsible for making contributions to the resource
Michael Svec
Rights
Information about rights held in and over the resource
Pre-1923
Format
The file format, physical medium, or dimensions of the resource
image/tif
Language
A language of the resource
English
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
University of Illinois, Urbana
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The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Celestial Globe by Denoyer-Geppert Company
Format
The file format, physical medium, or dimensions of the resource
image/jpg
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Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Celestial globe
Subject
The topic of the resource
Astronomy
Globe
Education
Description
An account of the resource
Paper, metal stand
16-inch Celestial Globe by Denoyer-Geppert Company, Chicago, circa 1956. Blue sky with black and yellow stars, constellation borders, lines, and figures included.
Also a 16-inch celestial globe by George F. Cram's, Indianapolis Indiana.
Creator
An entity primarily responsible for making the resource
Denoyer-Geppert Company, Chicago, Illinois
George F. Cram's, Indianapolis Indiana.
Publisher
An entity responsible for making the resource available
University of Illinois
Date
A point or period of time associated with an event in the lifecycle of the resource
circa 1950s
Contributor
An entity responsible for making contributions to the resource
Michael Svec
Rights
Information about rights held in and over the resource
Copyright, Michael Svec
Format
The file format, physical medium, or dimensions of the resource
image/jpg
Language
A language of the resource
English
Type
The nature or genre of the resource
physical object
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
University of Illinois Observatory, Urbana, Illinois
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The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Photographs
Description
An account of the resource
This collection contains photographs of the Observatory from a variety of sources. Included are postcards, images from publications, and photographs from the Observatory's lantern slide collection.
Contributor
An entity responsible for making contributions to the resource
Department of Astronomy
Personal collection of Michael Svec
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Window transparencies
Subject
The topic of the resource
Astronomy
Photography
Furniture
Description
An account of the resource
Wood, glass, film
Black rectangular frame with two metal eye hooks on the top. Hung in window, wooden frame, image of moon sandwiched between two pieces of glass and a light diffusor. Illuminates print using light from outside. Seven were made locally from transparencies in 1907. On many pictures from the period, you can see the transparencies hanging in the windows in the foyer, and in the south windows of the classroom. One is a black and white photograph of M33. The second is the Moon, specifically Crater Theophilus in center, Mare Nectaris on left. Picture taken with 40-inch refractor at Yerkes Observatory by Ritchey. Published in The Popular Science Monthly, February 1902, page 312 illustration 13.
Creator
An entity primarily responsible for making the resource
Unknown
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana
Date
A point or period of time associated with an event in the lifecycle of the resource
circa 1907
Contributor
An entity responsible for making contributions to the resource
Michael Svec
Rights
Information about rights held in and over the resource
Copyright, Michael Svec
Format
The file format, physical medium, or dimensions of the resource
image/jpg
Language
A language of the resource
English
Type
The nature or genre of the resource
physical object
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
University of Illinois Observatory, Urbana, Illinois