Yerkes Observatory
E17797
Yerkes Observatory is a historic astronomical observatory in Wisconsin renowned for housing one of the world’s largest refracting telescopes and for its influential role in 20th-century astrophysical research.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T93543 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Yerkes Observatory Context triple: [Subrahmanyan Chandrasekhar, employer, Yerkes Observatory]
-
A.
Las Campanas Observatory
Las Campanas Observatory is a major astronomical observatory in Chile renowned for its high-quality observing conditions and its role in cutting-edge optical and infrared astronomy.
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B.
Swope Telescope
The Swope Telescope is a 1-meter-class optical telescope at Chile’s Las Campanas Observatory, known for its role in supernova and transient object discoveries.
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C.
Cerro Tololo Inter-American Observatory
Cerro Tololo Inter-American Observatory is a major astronomical observatory complex in northern Chile that hosts multiple world-class telescopes used for cutting-edge research on the universe.
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D.
Adler Planetarium
Adler Planetarium is a major public museum and research institution dedicated to astronomy and space science, located on the shore of Lake Michigan in Chicago.
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E.
du Pont Telescope
The du Pont Telescope is a 2.5-meter optical telescope at Chile’s Las Campanas Observatory used for a wide range of astronomical imaging and spectroscopic research.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Yerkes Observatory Target entity description: Yerkes Observatory is a historic astronomical observatory in Wisconsin renowned for housing one of the world’s largest refracting telescopes and for its influential role in 20th-century astrophysical research.
-
A.
Las Campanas Observatory
Las Campanas Observatory is a major astronomical observatory in Chile renowned for its high-quality observing conditions and its role in cutting-edge optical and infrared astronomy.
-
B.
Swope Telescope
The Swope Telescope is a 1-meter-class optical telescope at Chile’s Las Campanas Observatory, known for its role in supernova and transient object discoveries.
-
C.
Cerro Tololo Inter-American Observatory
Cerro Tololo Inter-American Observatory is a major astronomical observatory complex in northern Chile that hosts multiple world-class telescopes used for cutting-edge research on the universe.
-
D.
Adler Planetarium
Adler Planetarium is a major public museum and research institution dedicated to astronomy and space science, located on the shore of Lake Michigan in Chicago.
-
E.
du Pont Telescope
The du Pont Telescope is a 2.5-meter optical telescope at Chile’s Las Campanas Observatory used for a wide range of astronomical imaging and spectroscopic research.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observatory
ⓘ
historic site ⓘ research institution ⓘ |
| affiliation | Department of Astronomy and Astrophysics, University of Chicago ⓘ |
| architect | Henry Ives Cobb ⓘ |
| associatedWith |
University of Chicago Yerkes Observatory classification system
ⓘ
linked to:
Yerkes Observatory
|
| buildingStyle |
Beaux-Arts architecture
ⓘ
linked to:
Beaux-Arts
|
| constructionStartDate | 1895 ⓘ |
| country | United States of America ⓘ |
| elevationAboveSeaLevel | 335 meters ⓘ |
| hasAlternativeName |
Yerkes Observatory of the University of Chicago
ⓘ
linked to:
Yerkes Observatory
|
| hasCoordinateLatitude | 42.571 ⓘ |
| hasCoordinateLongitude | -88.550 ⓘ |
| hasDomeDiameter |
27 meters (main dome)
ⓘ
90 feet (main dome) ⓘ |
| hasFacility |
laboratories
ⓘ
library ⓘ observatory dome ⓘ offices ⓘ |
| hasInstrument |
photographic plates
ⓘ
photometers ⓘ spectrographs ⓘ |
| hasTelescope |
24-inch reflecting telescope
ⓘ
40-inch reflecting telescope ⓘ Yerkes 40-inch refracting telescope ⓘ
linked to:
Yerkes Observatory
|
| hasVisitorProgram | public tours ⓘ |
| heritageStatus | historic observatory ⓘ |
| inaugurationDate | 1897 ⓘ |
| influenced | development of modern astrophysics ⓘ |
| locatedIn |
Walworth County, Wisconsin
ⓘ
Williams Bay, Wisconsin ⓘ Wisconsin ⓘ |
| namedAfter | Charles T. Yerkes ⓘ |
| notableFor |
early 20th-century astrophysical research
ⓘ
stellar classification work ⓘ stellar spectroscopy ⓘ world’s largest operable refracting telescope ⓘ |
| operatedBy |
University of Chicago (historically)
ⓘ
linked to:
University of Chicago
|
| ownedBy | University of Chicago ⓘ |
| researchField |
astronomy
ⓘ
astrophysics ⓘ |
| telescopeAperture |
102 centimeters
ⓘ
40 inches ⓘ |
| telescopeType | refracting telescope ⓘ |
| usedFor |
astronomical observation
ⓘ
education ⓘ public outreach ⓘ scientific research ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Yerkes Observatory Description of subject: Yerkes Observatory is a historic astronomical observatory in Wisconsin renowned for housing one of the world’s largest refracting telescopes and for its influential role in 20th-century astrophysical research.
Referenced by (23)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Yerkes Observatory
Yerkes Observatory
→
associatedWith
→
University of Chicago Yerkes Observatory classification system
ⓘ
linked to: Yerkes Observatory
linked to: Yerkes Observatory
linked to: Yerkes Observatory
Department of Astronomy and Astrophysics, University of Chicago
→
collaboratesWith
→
Yerkes Observatory
ⓘ
subject linked to:
George