Harvard Plate Stacks
E540355
Harvard Plate Stacks is a historic archive of astronomical photographic plates at the Harvard College Observatory that has been central to long-term studies of variable stars and other celestial phenomena.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Harvard Plate Stacks canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5721023 — 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: Harvard Plate Stacks Context triple: [Harvard College Observatory, hasPart, Harvard Plate Stacks]
-
A.
Harvard Library
Harvard Library is the extensive academic library system of Harvard University, recognized as one of the largest and most comprehensive research library networks in the world.
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B.
Harvard-Yenching Library
The Harvard-Yenching Library is Harvard University's primary research library for East Asian studies, renowned for its extensive collections of Chinese, Japanese, Korean, and other East Asian materials.
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C.
Harvard Public Library
Harvard Public Library is the public library serving the town of Harvard, Massachusetts, providing community access to books, media, and educational resources.
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D.
Cabot Science Library
Cabot Science Library is a major Harvard University library focused on supporting undergraduate education and research in the sciences and related fields.
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E.
Houghton Library
Houghton Library is Harvard University's principal rare books and manuscripts library, renowned for its extensive collections of literary, historical, and cultural materials.
- 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: Harvard Plate Stacks Target entity description: Harvard Plate Stacks is a historic archive of astronomical photographic plates at the Harvard College Observatory that has been central to long-term studies of variable stars and other celestial phenomena.
-
A.
Harvard Library
Harvard Library is the extensive academic library system of Harvard University, recognized as one of the largest and most comprehensive research library networks in the world.
-
B.
Harvard-Yenching Library
The Harvard-Yenching Library is Harvard University's primary research library for East Asian studies, renowned for its extensive collections of Chinese, Japanese, Korean, and other East Asian materials.
-
C.
Harvard Public Library
Harvard Public Library is the public library serving the town of Harvard, Massachusetts, providing community access to books, media, and educational resources.
-
D.
Cabot Science Library
Cabot Science Library is a major Harvard University library focused on supporting undergraduate education and research in the sciences and related fields.
-
E.
Houghton Library
Houghton Library is Harvard University's principal rare books and manuscripts library, renowned for its extensive collections of literary, historical, and cultural materials.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical photographic plate archive
ⓘ
historical scientific archive ⓘ |
| associatedProject | DASCH (Digital Access to a Sky Century @ Harvard) NERFINISHED ⓘ |
| associatedWith |
Annie Jump Cannon
NERFINISHED
ⓘ
Antonia Maury NERFINISHED ⓘ Edward Charles Pickering NERFINISHED ⓘ Harvard College Observatory women computers NERFINISHED ⓘ Henrietta Swan Leavitt NERFINISHED ⓘ Williamina Fleming NERFINISHED ⓘ |
| collectionType |
astronomical images
ⓘ
photographic plates ⓘ |
| containsDataOn |
asteroids
ⓘ
comets ⓘ galaxies ⓘ novae ⓘ quasars ⓘ supernovae ⓘ transient astronomical events ⓘ variable stars ⓘ |
| country | United States of America ⓘ |
| digitizationProject | DASCH (Digital Access to a Sky Century @ Harvard) NERFINISHED ⓘ |
| field |
astronomy
ⓘ
astrophysics ⓘ history of science ⓘ |
| hasPart | Harvard College Observatory photographic plate collection NERFINISHED ⓘ |
| heritageStatus | historically significant scientific collection ⓘ |
| institutionalAffiliation | Harvard University Department of Astronomy NERFINISHED ⓘ |
| locatedIn | Cambridge, Massachusetts ⓘ |
| material | glass photographic plates ⓘ |
| notableFor |
continuous sky coverage over more than a century
ⓘ
one of the largest collections of astronomical photographic plates ⓘ |
| operator |
Harvard College Observatory
NERFINISHED
ⓘ
Harvard University NERFINISHED ⓘ |
| partOf | Harvard College Observatory NERFINISHED ⓘ |
| preservationActivity |
digitization of photographic plates
ⓘ
environmental control for plate storage ⓘ |
| researchImportance |
enables century-scale variability studies
ⓘ
provides historical baselines for modern surveys ⓘ supports calibration of long-term light curves ⓘ |
| timeSpanCovered | late 19th century to late 20th century ⓘ |
| usedFor |
historical sky surveys
ⓘ
long-term studies of variable stars ⓘ photometric variability studies ⓘ proper motion studies ⓘ studies of other celestial phenomena ⓘ time-domain astronomy ⓘ |
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: Harvard Plate Stacks Description of subject: Harvard Plate Stacks is a historic archive of astronomical photographic plates at the Harvard College Observatory that has been central to long-term studies of variable stars and other celestial phenomena.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.