Guillaume Le Gentil
E459104
Guillaume Le Gentil was an 18th-century French astronomer best known for his ill-fated expeditions to observe the transits of Venus.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Guillaume Le Gentil canonical | 5 |
| Guillaume Joseph Hyacinthe Jean-Baptiste Le Gentil de la Galaisière | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4618495 — 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: Guillaume Le Gentil Context triple: [M32, discoveredBy, Guillaume Le Gentil]
-
A.
Jean de Lalande
Jean de Lalande was a 17th-century French Jesuit lay missionary and martyr who was killed by the Iroquois while serving in New France.
-
B.
Jérôme Lalande
Jérôme Lalande was an 18th-century French astronomer known for his work in celestial mechanics, star catalogues, and popularizing astronomy.
-
C.
Nicolas de Lacaille
Nicolas de Lacaille was an 18th-century French astronomer renowned for his extensive southern sky surveys and for introducing many of the modern constellations.
-
D.
Georg de Lalande
Georg de Lalande was a German architect active in the early 20th century, known for designing prominent public and governmental buildings in East Asia.
-
E.
Étienne-Louis
Étienne-Louis is a French given name most famously borne by the visionary neoclassical architect Étienne-Louis Boullée.
- 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: Guillaume Le Gentil Target entity description: Guillaume Le Gentil was an 18th-century French astronomer best known for his ill-fated expeditions to observe the transits of Venus.
-
A.
Jean de Lalande
Jean de Lalande was a 17th-century French Jesuit lay missionary and martyr who was killed by the Iroquois while serving in New France.
-
B.
Jérôme Lalande
Jérôme Lalande was an 18th-century French astronomer known for his work in celestial mechanics, star catalogues, and popularizing astronomy.
-
C.
Nicolas de Lacaille
Nicolas de Lacaille was an 18th-century French astronomer renowned for his extensive southern sky surveys and for introducing many of the modern constellations.
-
D.
Georg de Lalande
Georg de Lalande was a German architect active in the early 20th century, known for designing prominent public and governmental buildings in East Asia.
-
E.
Étienne-Louis
Étienne-Louis is a French given name most famously borne by the visionary neoclassical architect Étienne-Louis Boullée.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
French astronomer
ⓘ
astronomer ⓘ human ⓘ |
| aimedToDetermine | distance between Earth and Sun (astronomical unit) ⓘ |
| associatedWith |
transit of Venus of 1761
ⓘ
transit of Venus of 1769 ⓘ |
| birthDate | 1725-09-12 ⓘ |
| birthPlace |
Coutances, France
ⓘ
linked to:
Coutances
|
| causeOfNotability | scientific expeditions marked by misfortune ⓘ |
| contributedTo | early catalogues of nebulae ⓘ |
| countryOfCitizenship | France ⓘ |
| deathDate | 1792-10-22 ⓘ |
| deathPlace |
Paris, France
ⓘ
linked to:
Paris
|
| employer |
French Academy of Sciences
ⓘ
linked to:
Académie des Sciences
|
| era | 18th century ⓘ |
| expeditionDestination |
Philippines
ⓘ
Pondicherry, India ⓘ
linked to:
Puducherry
Île de France (Mauritius) ⓘ
linked to:
Mauritius
|
| familyName | Le Gentil ⓘ |
| fieldOfWork | astronomy ⓘ |
| fullName |
Guillaume Joseph Hyacinthe Jean-Baptiste Le Gentil de la Galaisière
ⓘ
linked to:
Guillaume Le Gentil
|
| givenName | Guillaume ⓘ |
| hasGender | male ⓘ |
| honouredIn | lunar crater Le Gentil ⓘ |
| knownFor |
attempted measurement of the astronomical unit
ⓘ
ill-fated expeditions to observe the transits of Venus ⓘ observations of the transit of Venus ⓘ |
| language | French ⓘ |
| memberOf |
French Academy of Sciences
ⓘ
linked to:
Académie des Sciences
|
| methodologicalContribution | participated in parallax measurements using Venus transits ⓘ |
| name | Guillaume Le Gentil ⓘ |
| nationality | French ⓘ |
| notableEvent |
failed to observe the 1761 transit of Venus due to clouds and timing issues at sea
ⓘ
failed to observe the 1769 transit of Venus at Pondicherry due to clouds ⓘ remained away from France for more than a decade due to his Venus transit expeditions ⓘ returned to France to find he had been declared legally dead ⓘ |
| observed |
nebulae in the constellation Andromeda
ⓘ
nebulae in the constellation Orion ⓘ |
| occupation | astronomer ⓘ |
| participatedIn |
global campaigns to observe the 1761 transit of Venus
ⓘ
global campaigns to observe the 1769 transit of Venus ⓘ |
| religion | Roman Catholicism ⓘ |
| residence |
Paris, France
ⓘ
linked to:
Paris
|
| studied |
lunar theory
ⓘ
nebulae ⓘ |
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: Guillaume Le Gentil Description of subject: Guillaume Le Gentil was an 18th-century French astronomer best known for his ill-fated expeditions to observe the transits of Venus.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
Guillaume Le Gentil
→
fullName
→
Guillaume Joseph Hyacinthe Jean-Baptiste Le Gentil de la Galaisière
ⓘ
linked to: Guillaume Le Gentil