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Title
A name given to the resource
Willis Pendulum Astrolabe
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The file format, physical medium, or dimensions of the resource
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Format
The file format, physical medium, or dimensions of the resource
image/pdf
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
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
Sextants and accessories
Description
An account of the resource
The "old astronomy" was dominated by the precise measurement of the positions of the stars and the determination of time. At Illinois, astronomy was first taught as part of the Civil Engineering department helping to develop the engineers' surveying skills. Specialized telescopes and procedures were developed for this purpose. As the "new astronomy" of astrophysics began to develop, positional astronomy was taught less and less. The one exception was the need for navigation by military ships and airplanes. In 1918 a Navigation course was offered for air service men. The course continued after WWI and was advertised as a course of interest to engineers and those thinking of working on merchant ships. This collection consists of sextants and other accessories such as artificial horizons that were used in positional astronomy, surveying, and navigation.
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
Willis Pendulum Astrolabe
Subject
The topic of the resource
Astronomy
Navigation
Surveying
Optical instrument
Measuring instrument
Description
An account of the resource
The Willis Pendulum Astrolabe was used primarily by the armed forces to determine latitudes and longitudes. The astrolabe is stored in a large green wooden box. It is marked “PENDULUM ASTROLABE David White Co. Milwaukee Wisc USA, No. 65649, M-5107, 1952, U.S.” The instrument was invented by John Willis> The advantage of the Willis pendulum was that it used a mirror instead of mercury as a reflecting surface. It was able to measure position on earth to within 20 feet. The David White Company was founded in 1895 and continues to provide precision optical tools used in surveying.
Creator
An entity primarily responsible for making the resource
David White Company
Publisher
An entity responsible for making the resource available
University of Illinois, Astronomy Department, Urbana
Date
A point or period of time associated with an event in the lifecycle of the resource
Circa 1952
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 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
Brandis & Sons sextant
Rights
Information about rights held in and over the resource
Copyright Michael Svec
Format
The file format, physical medium, or dimensions of the resource
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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
Brandis & Sons sextant and box
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
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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
Sextants and accessories
Description
An account of the resource
The "old astronomy" was dominated by the precise measurement of the positions of the stars and the determination of time. At Illinois, astronomy was first taught as part of the Civil Engineering department helping to develop the engineers' surveying skills. Specialized telescopes and procedures were developed for this purpose. As the "new astronomy" of astrophysics began to develop, positional astronomy was taught less and less. The one exception was the need for navigation by military ships and airplanes. In 1918 a Navigation course was offered for air service men. The course continued after WWI and was advertised as a course of interest to engineers and those thinking of working on merchant ships. This collection consists of sextants and other accessories such as artificial horizons that were used in positional astronomy, surveying, and navigation.
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
Sextant
Subject
The topic of the resource
Astronomy
Navigation
Surveying
Measuring instruments
Description
An account of the resource
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 made with the Brandis label was 1932.
Black metal frame with wood handle. Maker’s no. 5071, also includes US Navy no. 2696, Navy certificate dated 9/18/1939. On index arm is “Brandis & Sons, Brooklyn” Included 3 black painted telescopes, vernier read with swivel magnifying lens, tangent screw and clamping arms on index arm, and threaded telescope bracket .
Creator
An entity primarily responsible for making the resource
Brandis & Sons, Brooklyn, New York
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana, Illinois
Date
A point or period of time associated with an event in the lifecycle of the resource
circa 1939
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
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
sextant
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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
Bendix Aviation Company sextant
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
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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
Sextants and accessories
Description
An account of the resource
The "old astronomy" was dominated by the precise measurement of the positions of the stars and the determination of time. At Illinois, astronomy was first taught as part of the Civil Engineering department helping to develop the engineers' surveying skills. Specialized telescopes and procedures were developed for this purpose. As the "new astronomy" of astrophysics began to develop, positional astronomy was taught less and less. The one exception was the need for navigation by military ships and airplanes. In 1918 a Navigation course was offered for air service men. The course continued after WWI and was advertised as a course of interest to engineers and those thinking of working on merchant ships. This collection consists of sextants and other accessories such as artificial horizons that were used in positional astronomy, surveying, and navigation.
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
Sextant
Subject
The topic of the resource
Astronomy
Navigation
Surveying
Measuring instruments
Description
An account of the resource
Wood, metal, glass
Black aluminum frame, wood handle, one telescope, no filters, micrometer wheel on vernier scale, arc is black with white engraved scale from 0 to 140. Marked on index arm “U.S. Navy Bureau of Ships ETS Sextant, Mark 2 Mod 0 28012 1943, type no 3052-1-A”.
Creator
An entity primarily responsible for making the resource
Bendix Aviation Co., Eclipse-Pioneer division, Teterboro, New Jersey
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana, Illinois
Date
A point or period of time associated with an event in the lifecycle of the resource
circa 1943
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
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
sextant
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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
Keuffel & Esser sextant and box
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
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Title
A name given to the resource
Keuffel & Esser arifical horizon
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
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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
Kueffel & Esser Company catalog for artificial horizon.
Subject
The topic of the resource
catalog
Description
An account of the resource
Keuffel & Esser Co. (1913). Catalogue and price list of Keuffel& Esser co, manufacturers and importers of drawing materials and surveying instruments. Keuffel & Esser Co: New York.
Date
A point or period of time associated with an event in the lifecycle of the resource
1913
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
Sextants and accessories
Description
An account of the resource
The "old astronomy" was dominated by the precise measurement of the positions of the stars and the determination of time. At Illinois, astronomy was first taught as part of the Civil Engineering department helping to develop the engineers' surveying skills. Specialized telescopes and procedures were developed for this purpose. As the "new astronomy" of astrophysics began to develop, positional astronomy was taught less and less. The one exception was the need for navigation by military ships and airplanes. In 1918 a Navigation course was offered for air service men. The course continued after WWI and was advertised as a course of interest to engineers and those thinking of working on merchant ships. This collection consists of sextants and other accessories such as artificial horizons that were used in positional astronomy, surveying, and navigation.
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
Sextant and artificial horizon
Subject
The topic of the resource
Astronomy
Navigation
Surveying
Measuring instruments
Description
An account of the resource
Wood, metal, glass
Sextant:
Wooden box with hinged lid, inside includes Keuffel & Esser paper label and “obs 15” mark. Sextant matched with artificial horizon A214.2.
Black metal frame, wood handle, silver scale, maker marked on index arm, 2 telescopes, long tangent screw, 2 lens cap filters, reading lens for vernier, 4 index filters and 3 horizon filters. No 22872, maybe model 5225.
Artificial Horizon:
Box has hinged lid with two latches, broken leather handle, is marked with a maker tag, number 5 and University id tag and with a University police evidence tag from 1981. Bronzed brass roof with greenish color, measured 8 ¾ x 7 3/8 x 4 ½ inch high, fine plane glass 2 ¾ x 4 1/8, iron mercury bottle with threaded stopper and funnel top. Iron mercury trough with thread for funnel and lip. Polished mahogany case. In the Keuffel & Esser catalog #5250 on page 412, cost $35 .
Creator
An entity primarily responsible for making the resource
Keuffel & Esser Company, New York
Source
A related resource from which the described resource is derived
Keuffel & Esser Co. (1913). Catalogue and price list of Keuffel& Esser co, manufacturers and importers of drawing materials and surveying instruments. Keuffel & Esser Co: New York.
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana, Illinois
Date
A point or period of time associated with an event in the lifecycle of the resource
circa 1913
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
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
sextant
-
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Dublin Core
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Title
A name given to the resource
Bubble sextant
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
Sextants and accessories
Description
An account of the resource
The "old astronomy" was dominated by the precise measurement of the positions of the stars and the determination of time. At Illinois, astronomy was first taught as part of the Civil Engineering department helping to develop the engineers' surveying skills. Specialized telescopes and procedures were developed for this purpose. As the "new astronomy" of astrophysics began to develop, positional astronomy was taught less and less. The one exception was the need for navigation by military ships and airplanes. In 1918 a Navigation course was offered for air service men. The course continued after WWI and was advertised as a course of interest to engineers and those thinking of working on merchant ships. This collection consists of sextants and other accessories such as artificial horizons that were used in positional astronomy, surveying, and navigation.
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
Bubble sextant
Subject
The topic of the resource
Astronomy
Navigation
Surveying
Measuring instruments
Description
An account of the resource
Wood, metal alloy, plastic
Marked property Air Force-US Navy, type A-10A. Probably WW II era. Blackened aluminum casting, containing clockwork, lenses, mirrors, buddle level, and rubber eyecup. In fitted wooden box. A small rugged aircraft sextant for military use.
Creator
An entity primarily responsible for making the resource
Fairchild Camera and Instrument Corporation, New York
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana, Illinois
Date
A point or period of time associated with an event in the lifecycle of the resource
circa 1944
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 A207
University ID 16800-16805
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
sextant
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Dublin Core
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Title
A name given to the resource
Sperti compass
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
https://d1y502jg6fpugt.cloudfront.net/1868/archive/files/448c481b93bb166f69caa3574db10deb.pdf?Expires=1712793600&Signature=EQnrpAqDELoR5t0l%7Eo4HiDtPLOOyy2AgRhZU3R1XCnObiPX3LYqO7Sgha99S6FkxSK35L%7Eo86wlSfLzCt9K3UUtiel-%7EQ6cu8fqUorh1C-HSBJrz4SFBlnvRWpbC2frVSKuaiTBd0U6fd0FVMJ67ZRrm8YiSQUGYHQhGSWsGFjcL2jDdtIwdWiPBfbY7lszyqSsnG4LJUljKxAXu5LKo9MEAXKMMgFI3C%7E3FdjnJGnOaDXDCjNuQrst9Rls-Dlr%7E30kqCkUiKwfZdOFpsZcR9rYsRJTSV1Uvc6Y4nr%7EhjFF8MC-gqMzE2wDsDpjrmo0tYZGmWITFWzGEAMjhyIg6IQ__&Key-Pair-Id=K6UGZS9ZTDSZM
e4cf4b1345e0bfaee25ebe15d2d6576b
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
Sextants and accessories
Description
An account of the resource
The "old astronomy" was dominated by the precise measurement of the positions of the stars and the determination of time. At Illinois, astronomy was first taught as part of the Civil Engineering department helping to develop the engineers' surveying skills. Specialized telescopes and procedures were developed for this purpose. As the "new astronomy" of astrophysics began to develop, positional astronomy was taught less and less. The one exception was the need for navigation by military ships and airplanes. In 1918 a Navigation course was offered for air service men. The course continued after WWI and was advertised as a course of interest to engineers and those thinking of working on merchant ships. This collection consists of sextants and other accessories such as artificial horizons that were used in positional astronomy, surveying, and navigation.
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
Compass
Subject
The topic of the resource
Astronomy
Navigation
Surveying
Measuring instruments
Description
An account of the resource
There are three Astro Compass Mark II, in green wooden boxes with canvas handles. It can be pointed at a known star, including the sun, and used to indicate true north. Manual included.
Creator
An entity primarily responsible for making the resource
Sperti Inc., Cincinnati, Ohio
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana, Illinois
Date
A point or period of time associated with an event in the lifecycle of the resource
circa 1943
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 A231.1, 231.2, 231.3
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
compass
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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
Keuffel & Esser catalog for reflecting horizon
Description
An account of the resource
Keuffel & Esser Co. (1913). Catalogue and price list of Keuffel& Esser co, manufacturers and importers of drawing materials and surveying instruments. Keuffel & Esser Co: New York.
Date
A point or period of time associated with an event in the lifecycle of the resource
1913
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
Sextants and accessories
Description
An account of the resource
The "old astronomy" was dominated by the precise measurement of the positions of the stars and the determination of time. At Illinois, astronomy was first taught as part of the Civil Engineering department helping to develop the engineers' surveying skills. Specialized telescopes and procedures were developed for this purpose. As the "new astronomy" of astrophysics began to develop, positional astronomy was taught less and less. The one exception was the need for navigation by military ships and airplanes. In 1918 a Navigation course was offered for air service men. The course continued after WWI and was advertised as a course of interest to engineers and those thinking of working on merchant ships. This collection consists of sextants and other accessories such as artificial horizons that were used in positional astronomy, surveying, and navigation.
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
Reflection horizon
Subject
The topic of the resource
Astronomy
Navigation
Surveying
Measuring instruments
Description
An account of the resource
Black glass ground plane surface, 3 3/8 diameter, 3 leveling screws, fine graduated adjustable spirit level, and mahogany case.
In the 1913 Keuffel & Esser catalog (page 413) the reflecting horizon cost $16. The reflecting horizon is an alternative to the mercury artificial horizon and is used with a sextant when the horizon is not visible.
Creator
An entity primarily responsible for making the resource
Keuffel & Esser Company, New York
Source
A related resource from which the described resource is derived
Keuffel & Esser Co. (1913). Catalogue and price list of Keuffel& Esser co, manufacturers and importers of drawing materials and surveying instruments. Keuffel & Esser Co: New York.
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana, Illinois
Date
A point or period of time associated with an event in the lifecycle of the resource
about 1915
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 A226.1, 226.2
University ID 016680 obs142, 016682 obs144
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
artificial horizon
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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
Keuffel & Esser Marine sextant
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
Sextants and accessories
Description
An account of the resource
The "old astronomy" was dominated by the precise measurement of the positions of the stars and the determination of time. At Illinois, astronomy was first taught as part of the Civil Engineering department helping to develop the engineers' surveying skills. Specialized telescopes and procedures were developed for this purpose. As the "new astronomy" of astrophysics began to develop, positional astronomy was taught less and less. The one exception was the need for navigation by military ships and airplanes. In 1918 a Navigation course was offered for air service men. The course continued after WWI and was advertised as a course of interest to engineers and those thinking of working on merchant ships. This collection consists of sextants and other accessories such as artificial horizons that were used in positional astronomy, surveying, and navigation.
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
Marine sextant
Subject
The topic of the resource
Astronomy
Navigation
Surveying
Measuring instruments
Description
An account of the resource
In the Keuffel & Esser catalog , model 5224D on page 410, cost, $80. Paper label includes model 5224D and serial number 42046. Gun-metal, measuring angles up to 130 degrees, radius 6-in graduated on solid silver to 20 minutes, vernier to 30 seconds. Clamp and transit screw to vernier. Mounting reading lens (missing), 1 plain sighting tube, 1 inverting telescope, 1 star telescope, 2 neutral glasses, 7 neutral glasses to sextant, polished mahogany case with lock. Box has hinged lid, two latches, lock, inside maker label and “obs 143” mark, paper label “2” on exterior.
Creator
An entity primarily responsible for making the resource
Keuffel & Esser, New York
Source
A related resource from which the described resource is derived
Keuffel & Esser Co. (1913). Catalogue and price list of Keuffel& Esser co, manufacturers and importers of drawing materials and surveying instruments. Keuffel & Esser Co: New York.
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana, Illinois
Date
A point or period of time associated with an event in the lifecycle of the resource
About 1915
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 A234
University ID 016681, obs143
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
sextant
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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
Sextants and accessories
Description
An account of the resource
The "old astronomy" was dominated by the precise measurement of the positions of the stars and the determination of time. At Illinois, astronomy was first taught as part of the Civil Engineering department helping to develop the engineers' surveying skills. Specialized telescopes and procedures were developed for this purpose. As the "new astronomy" of astrophysics began to develop, positional astronomy was taught less and less. The one exception was the need for navigation by military ships and airplanes. In 1918 a Navigation course was offered for air service men. The course continued after WWI and was advertised as a course of interest to engineers and those thinking of working on merchant ships. This collection consists of sextants and other accessories such as artificial horizons that were used in positional astronomy, surveying, and navigation.
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
Double frame bridge sextant
Subject
The topic of the resource
Astronomy
Navigation
Surveying
Measuring instruments
Description
An account of the resource
Wood, metal, glass
Fitted keystone wood box with hinged lid and two hook latches. Black metal frame with brass screws, silver scale and wood handle. Includes 3 black painted telescopes, 1 eyepiece cover, 8-½ inch radius, eyepiece to read vernier, signed on brass radius “M. Berge London.” Matthew Berge worked in London 1800 until his death in 1820. Since it was not listed by Stebbins in 1906 and considering its age, this might be a later donation to the department.
Creator
An entity primarily responsible for making the resource
Matthew Berge, London
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana, Illinois
Date
A point or period of time associated with an event in the lifecycle of the resource
pre-1820
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 A232
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
sextant
-
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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
Bausch, Lomb, Saegmuller Company sextant
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
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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
Sextants and accessories
Description
An account of the resource
The "old astronomy" was dominated by the precise measurement of the positions of the stars and the determination of time. At Illinois, astronomy was first taught as part of the Civil Engineering department helping to develop the engineers' surveying skills. Specialized telescopes and procedures were developed for this purpose. As the "new astronomy" of astrophysics began to develop, positional astronomy was taught less and less. The one exception was the need for navigation by military ships and airplanes. In 1918 a Navigation course was offered for air service men. The course continued after WWI and was advertised as a course of interest to engineers and those thinking of working on merchant ships. This collection consists of sextants and other accessories such as artificial horizons that were used in positional astronomy, surveying, and navigation.
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
Sextant and artificial horizon
Subject
The topic of the resource
Astronomy
Navigation
Surveying
Measuring instruments
Description
An account of the resource
Wood, metal, glass
Metal black frame with wood handle and silver scale. Horizon mirror is broken, includes 4 index filters, 3 horizon filters, 3 brass telescopes, 2 lens caps, wooden handle, 6” radius on scale, maker and model 4323 marked on index arm, vernier read by magnify lens.
Box is 9 5/8” x 9 5/8” x 5 ¼” with hinge top, two latches, lock, marked “obs 14,” with metal handle.
Acquired in exchange for small Fauth chronograph. Saegmuller joined Bausch and Lomb. In 1905, the company included all three names until 1907.
The artificial horizon:
Wood, metal, glass
In the Astronomy department is the box with the cover, marked Fauth & Co. Box is 8 3/8” x 6 ¼” x 5 ¾”, dove tails visible, 2 hook latches, exterior university id tag plus paper label #6 .. Both the tray and bottle are corroded. Wind shield is greenish metal and glass. A
The artificial horizon was used with sextant to determine the altitude of objects when the true horizon was not visible. They most commonly consist of a trough, bottle with mercury, and a wind shield consisting of two panes of glass at right angles to the observer’s line of sight. It was used by viewing the sun or star directly and then again in the reflection of the mercury surface. You would then have two measurements can could divide by two. In the Saegmuller catalog (page 63) it cost $30.
Creator
An entity primarily responsible for making the resource
Bausch, Lomb, Saegmuller Company and Fauth Company
Publisher
An entity responsible for making the resource available
Astronomy Department, University of Illinois, Urbana, Illinois
Date
A point or period of time associated with an event in the lifecycle of the resource
1906
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 A119.1
University ID 016654, obs14
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
sextant