Archimedes
E867325
Archimedes is a prominent lunar impact crater on the Moon’s near side, notable for its large, flat floor and location within the Mare Imbrium.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Archimedes canonical | 2 |
| Archimedes A | 1 |
| Archimedes B | 1 |
| Archimedes C | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10501601 — 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: Archimedes Context triple: [Mare Imbrium, containsCrater, Archimedes]
-
A.
Archimedes
Archimedes was an ancient Greek mathematician, physicist, and engineer renowned for foundational contributions to geometry, hydrostatics, and mechanics that shaped later scientific thought.
-
B.
Hero of Alexandria
Hero of Alexandria was an ancient Greek engineer and mathematician known for his pioneering work in mechanics, pneumatics, and early steam-powered devices.
-
C.
Ctesibius
Ctesibius was an ancient Greek engineer and inventor, often regarded as the father of pneumatics for his pioneering work on devices using air and water pressure.
-
D.
Eratosthenes
Eratosthenes was an ancient Greek polymath best known for remarkably accurately calculating the Earth's circumference and for devising the sieve method for finding prime numbers.
-
E.
Archytas
Archytas was an influential 4th-century BCE Pythagorean philosopher, mathematician, statesman, and early pioneer of mechanics from the Greek city of Tarentum.
- 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: Archimedes Target entity description: Archimedes is a prominent lunar impact crater on the Moon’s near side, notable for its large, flat floor and location within the Mare Imbrium.
-
A.
Archimedes
Archimedes was an ancient Greek mathematician, physicist, and engineer renowned for foundational contributions to geometry, hydrostatics, and mechanics that shaped later scientific thought.
-
B.
Hero of Alexandria
Hero of Alexandria was an ancient Greek engineer and mathematician known for his pioneering work in mechanics, pneumatics, and early steam-powered devices.
-
C.
Ctesibius
Ctesibius was an ancient Greek engineer and inventor, often regarded as the father of pneumatics for his pioneering work on devices using air and water pressure.
-
D.
Eratosthenes
Eratosthenes was an ancient Greek polymath best known for remarkably accurately calculating the Earth's circumference and for devising the sieve method for finding prime numbers.
-
E.
Archytas
Archytas was an influential 4th-century BCE Pythagorean philosopher, mathematician, statesman, and early pioneer of mechanics from the Greek city of Tarentum.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
lunar crater
ⓘ
lunar impact crater ⓘ |
| albedo | low ⓘ |
| belongsTo |
Mare Imbrium region
ⓘ
linked to:
Mare Imbrium
|
| bestObservedAt | low sun angle ⓘ |
| boundedBy |
Montes Archimedes
ⓘ
Montes Spitzbergen ⓘ |
| catalogIn |
IAU Gazetteer of Planetary Nomenclature
ⓘ
linked to:
Gazetteer of Planetary Nomenclature
|
| colongitude | 4° ⓘ |
| depth | 2.1 km ⓘ |
| diameter | 83 km ⓘ |
| discoveredBy | early telescopic observers ⓘ |
| floorComposition | basaltic lava ⓘ |
| floorCondition | smooth ⓘ |
| geologicUnit | mare basalt ⓘ |
| hasFeature |
flooded floor by mare basalt
ⓘ
inner floor largely free of smaller craters ⓘ lacks central peak ⓘ large flat floor ⓘ polygonal outer rim ⓘ terraced inner walls ⓘ |
| hasMorphology | flooded-walled plain ⓘ |
| hasSatelliteCrater |
Archimedes A
ⓘ
linked to:
Archimedes
Archimedes B ⓘ
linked to:
Archimedes
Archimedes C ⓘ
linked to:
Archimedes
|
| IauFeatureId | 303 ⓘ |
| locatedIn |
Imbrium basin
ⓘ
Mare Imbrium ⓘ |
| locatedOn |
Moon
ⓘ
near side of the Moon ⓘ |
| namedAfter |
Archimedes of Syracuse
ⓘ
linked to:
Archimedes
|
| namedBy |
Giovanni Riccioli
ⓘ
linked to:
Giovanni Battista Riccioli
|
| namingYear | 1651 ⓘ |
| neighboringCrater |
Aristillus (lunar crater)
ⓘ
Autolycus (lunar crater) ⓘ Bancroft (lunar crater) ⓘ Timocharis (lunar crater) ⓘ
linked to:
Timocharis crater
|
| observationalInterest | prominent telescopic target ⓘ |
| quadrant | north-central near side ⓘ |
| region | northeastern Mare Imbrium ⓘ |
| relativeAge | Eratosthenian ⓘ |
| rimCondition | sharp and well-defined ⓘ |
| rimElevationRelativeToFloor | about 2 km ⓘ |
| selenographicLatitude | 24.4° N ⓘ |
| selenographicLongitude | 4.0° W ⓘ |
| shape | roughly circular ⓘ |
| visibleFrom | Earth ⓘ |
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: Archimedes Description of subject: Archimedes is a prominent lunar impact crater on the Moon’s near side, notable for its large, flat floor and location within the Mare Imbrium.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Archimedes
linked to: Archimedes
subject linked to:
Archimedes
linked to: Archimedes
subject linked to:
Archimedes
linked to: Archimedes