André Danjon
E742068
André Danjon was a 20th-century French astronomer renowned for his work in astrometry, lunar studies, and for developing the Danjon scale for measuring the brightness of lunar eclipses.
All labels observed (1)
| Label | Occurrences |
|---|---|
| André Danjon canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T8555688 — 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: André Danjon Context triple: [Paris Observatory, notableAstronomer, André Danjon]
-
A.
Édouard Roche
Édouard Roche was a 19th-century French astronomer and mathematician best known for formulating the Roche limit and making significant contributions to celestial mechanics.
-
B.
Marc Nattier
Marc Nattier was a French painter and the son of the renowned portraitist Jean-Marc Nattier.
-
C.
Camille Flammarion
Camille Flammarion was a French astronomer, author, and popularizer of science known for his influential works on astronomy and spiritualism in the late 19th and early 20th centuries.
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D.
Édouard Stephan
Édouard Stephan was a 19th-century French astronomer noted for his pioneering observations of galaxies and nebulae, including the first identification of Stephan's Quintet.
-
E.
Claude Janssen
Claude Janssen is a French business leader and academic figure best known as one of the co-founders who helped establish INSEAD as a leading international business school.
- 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: André Danjon Target entity description: André Danjon was a 20th-century French astronomer renowned for his work in astrometry, lunar studies, and for developing the Danjon scale for measuring the brightness of lunar eclipses.
-
A.
Édouard Roche
Édouard Roche was a 19th-century French astronomer and mathematician best known for formulating the Roche limit and making significant contributions to celestial mechanics.
-
B.
Marc Nattier
Marc Nattier was a French painter and the son of the renowned portraitist Jean-Marc Nattier.
-
C.
Camille Flammarion
Camille Flammarion was a French astronomer, author, and popularizer of science known for his influential works on astronomy and spiritualism in the late 19th and early 20th centuries.
-
D.
Édouard Stephan
Édouard Stephan was a 19th-century French astronomer noted for his pioneering observations of galaxies and nebulae, including the first identification of Stephan's Quintet.
-
E.
Claude Janssen
Claude Janssen is a French business leader and academic figure best known as one of the co-founders who helped establish INSEAD as a leading international business school.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical scale
ⓘ
human ⓘ |
| appliesTo | lunar eclipses ⓘ |
| areaOfExpertise |
lunar eclipses
ⓘ
positional astronomy ⓘ |
| centuryOfActivity | 20th century ⓘ |
| contributedTo | methods of precise astronomical measurement ⓘ |
| countryOfCitizenship | France ⓘ |
| developed | Danjon scale for measuring the brightness of lunar eclipses ⓘ |
| familyName | Danjon ⓘ |
| fieldOfWork |
astrometry
ⓘ
astronomy ⓘ lunar studies ⓘ |
| givenName | André ⓘ |
| hasScaleNamedAfter | Danjon scale ⓘ |
| knownFor |
Danjon scale
ⓘ
studies of the Moon ⓘ work in astrometry ⓘ |
| languageOfWorkOrName | French ⓘ |
| name | André Danjon ⓘ |
| namedAfter | André Danjon ⓘ |
| nationality | French ⓘ |
| notableAchievement | quantitative scale for lunar eclipse brightness ⓘ |
| occupation | astronomer ⓘ |
| sexOrGender | male ⓘ |
| usedFor | measuring brightness of lunar eclipses ⓘ |
| workLocation | France ⓘ |
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: André Danjon Description of subject: André Danjon was a 20th-century French astronomer renowned for his work in astrometry, lunar studies, and for developing the Danjon scale for measuring the brightness of lunar eclipses.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.