Oort (lunar crater)
E471609
Oort is a large impact crater on the far side of the Moon, named in honor of Dutch astronomer Jan Oort.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Oort (lunar crater) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4814352 — 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: Oort (lunar crater) Context triple: [Jan Oort, hasLunarCraterNamedAfter, Oort (lunar crater)]
-
A.
Baade lunar crater
Baade lunar crater is a large impact feature on the Moon’s far side named in honor of German astronomer Walter Baade.
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B.
Levi-Civita crater
Levi-Civita crater is a large, heavily eroded impact crater on the Moon’s far side, named after Italian mathematician Tullio Levi-Civita.
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C.
Lomonosov crater on the Moon
Lomonosov crater on the Moon is a lunar impact crater named in honor of Russian polymath Mikhail Lomonosov, recognized for its location on the Moon’s far side and its relatively well-preserved structure.
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D.
Russell lunar crater
Russell is a large, heavily eroded lunar impact crater located near the western limb of the Moon.
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E.
Chaplygin crater
Chaplygin crater is an impact crater on the Moon’s far side, notable for its heavily eroded rim and location near the large walled plain Gagarin.
- 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: Oort (lunar crater) Target entity description: Oort is a large impact crater on the far side of the Moon, named in honor of Dutch astronomer Jan Oort.
-
A.
Baade lunar crater
Baade lunar crater is a large impact feature on the Moon’s far side named in honor of German astronomer Walter Baade.
-
B.
Levi-Civita crater
Levi-Civita crater is a large, heavily eroded impact crater on the Moon’s far side, named after Italian mathematician Tullio Levi-Civita.
-
C.
Lomonosov crater on the Moon
Lomonosov crater on the Moon is a lunar impact crater named in honor of Russian polymath Mikhail Lomonosov, recognized for its location on the Moon’s far side and its relatively well-preserved structure.
-
D.
Russell lunar crater
Russell is a large, heavily eroded lunar impact crater located near the western limb of the Moon.
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E.
Chaplygin crater
Chaplygin crater is an impact crater on the Moon’s far side, notable for its heavily eroded rim and location near the large walled plain Gagarin.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
lunar impact crater
ⓘ
lunar surface feature ⓘ |
| belongsTo | lunar far-side highlands region ⓘ |
| category | Impact craters on the Moon ⓘ |
| diameter | ~119 km ⓘ |
| eponym | Jan Oort ⓘ |
| floorAlbedo | low ⓘ |
| geologicalContext | formed by large impact event ⓘ |
| hasColongitude | ~180 ⓘ |
| hasFeature |
central ridges
ⓘ
smaller impact craters along rim ⓘ smaller impact craters on interior floor ⓘ terraced inner walls ⓘ |
| hasSatelliteCrater |
Oort A
ⓘ
Oort B ⓘ Oort C ⓘ Oort D ⓘ Oort E ⓘ Oort F ⓘ Oort G ⓘ |
| interiorFloor | relatively level ⓘ |
| interiorMorphology | irregular with small craters and ridges ⓘ |
| locatedOn | Moon ⓘ |
| location | far side of the Moon ⓘ |
| namedAfter | Jan Oort ⓘ |
| namedBy | International Astronomical Union ⓘ |
| namedForNationality | Dutch ⓘ |
| namedForOccupation | astronomer ⓘ |
| namingStatus | approved by IAU ⓘ |
| notVisibleFrom | Earth ⓘ |
| observationMethod | lunar orbiter imaging ⓘ |
| outerWallCondition | heavily worn by subsequent impacts ⓘ |
| quadrant | lunar far-side southern hemisphere ⓘ |
| relativeLocation | near the lunar south pole region on the far side ⓘ |
| rimCondition | worn and eroded ⓘ |
| rimHeight | significant relative to surrounding terrain ⓘ |
| shape | roughly circular ⓘ |
| surfaceAge | ancient lunar highlands age ⓘ |
| surfaceType | heavily cratered highlands ⓘ |
| visibility | cannot be seen directly from 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: Oort (lunar crater) Description of subject: Oort is a large impact crater on the far side of the Moon, named in honor of Dutch astronomer Jan Oort.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.