Copernicus Crater on the Moon
E121044
Copernicus Crater on the Moon is a prominent, relatively young lunar impact crater in the Moon’s eastern Oceanus Procellarum region, named in honor of the Renaissance astronomer Nicolaus Copernicus.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Copernicus (lunar crater) | 3 |
| Copernicus Crater on the Moon canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1015391 — 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: Copernicus Crater on the Moon Context triple: [Nicolaus Copernicus, commemoratedBy, Copernicus Crater on the Moon]
-
A.
Gagarin crater on the Moon
Gagarin crater on the Moon is a large lunar impact crater on the Moon’s far side named in honor of Soviet cosmonaut Yuri Gagarin, the first human in space.
-
B.
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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C.
Ernst Mach crater
Ernst Mach crater is a large impact crater on the Moon’s far side named in honor of the Austrian physicist and philosopher Ernst Mach.
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D.
Schwarzschild crater
Schwarzschild crater is a large impact crater on the far side of the Moon, notable for its heavily eroded rim and complex interior features.
-
E.
Occator Crater
Occator Crater is a prominent impact crater on the dwarf planet Ceres, best known for its bright salt deposits that suggest past subsurface brine activity.
- 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: Copernicus Crater on the Moon Target entity description: Copernicus Crater on the Moon is a prominent, relatively young lunar impact crater in the Moon’s eastern Oceanus Procellarum region, named in honor of the Renaissance astronomer Nicolaus Copernicus.
-
A.
Gagarin crater on the Moon
Gagarin crater on the Moon is a large lunar impact crater on the Moon’s far side named in honor of Soviet cosmonaut Yuri Gagarin, the first human in space.
-
B.
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.
-
C.
Ernst Mach crater
Ernst Mach crater is a large impact crater on the Moon’s far side named in honor of the Austrian physicist and philosopher Ernst Mach.
-
D.
Schwarzschild crater
Schwarzschild crater is a large impact crater on the far side of the Moon, notable for its heavily eroded rim and complex interior features.
-
E.
Occator Crater
Occator Crater is a prominent impact crater on the dwarf planet Ceres, best known for its bright salt deposits that suggest past subsurface brine activity.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf | lunar impact crater ⓘ |
| adjacentMare |
Mare Cognitum region, Oceanus Procellarum
ⓘ
surface form:
Oceanus Procellarum
|
| age | Copernican period ⓘ |
| albedo | high ⓘ |
| bestSeenAt | near full Moon ⓘ |
| centralPeakComposition | uplifted crustal material ⓘ |
| centralPeakHeight | ~1.2 km above crater floor ⓘ |
| countryOfNamingTradition | international ⓘ |
| depth | 3.8 km ⓘ |
| diameter | 93 km ⓘ |
| eponymApprovalBody | International Astronomical Union ⓘ |
| eponymApprovalYear | 1935 ⓘ |
| eponymNationality | Polish ⓘ |
| eponymOccupation | astronomer ⓘ |
| exploredBy | Lunar Orbiter missions ⓘ |
| floorAlbedo | lower than surrounding ejecta ⓘ |
| formationProcess | hypervelocity impact ⓘ |
| geologicAgeEstimate | ~800 million years ⓘ |
| hasFeature |
central peaks
ⓘ
floor with hummocky terrain ⓘ radial ejecta rays ⓘ rough ejecta blanket ⓘ terraced walls ⓘ |
| hemisphere | lunar near side ⓘ |
| imagedBy |
Apollo 12
ⓘ
surface form:
Apollo 12 mission
Apollo 17 ⓘ
surface form:
Apollo 17 mission
Lunar Reconnaissance Orbiter ⓘ |
| locatedIn |
Mare Cognitum region, Oceanus Procellarum
ⓘ
surface form:
Oceanus Procellarum
|
| locatedOn | Moon ⓘ |
| lunarGeologicSystem | Copernican system ⓘ |
| morphologicalType | complex crater ⓘ |
| namedAfter | Nicolaus Copernicus ⓘ |
| nearbyCrater |
Eratosthenes (lunar crater)
ⓘ
Gay-Lussac (lunar crater) ⓘ Reinhold (lunar crater) ⓘ |
| nearbyFeature | Mare Insularum ⓘ |
| observationalProminence | one of the most conspicuous lunar craters ⓘ |
| quadrangle | LQ11 ⓘ |
| rayComposition | fresh highland and mare material ⓘ |
| raySystemAlbedo | high relative to surroundings ⓘ |
| raySystemDefines | start of Copernican period in lunar timescale ⓘ |
| raySystemExtent | over 800 km ⓘ |
| raySystemVisibility | prominent at full Moon ⓘ |
| scientificSignificance | key site for studying young lunar impact craters ⓘ |
| selenographicLatitude | 9.62° N ⓘ |
| selenographicLongitude | 20.08° W ⓘ |
| surfaceType | regolith-covered impact structure ⓘ |
| usedAs | stratigraphic marker on the Moon ⓘ |
| wallStructure | multiple terraces ⓘ |
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: Copernicus Crater on the Moon Description of subject: Copernicus Crater on the Moon is a prominent, relatively young lunar impact crater in the Moon’s eastern Oceanus Procellarum region, named in honor of the Renaissance astronomer Nicolaus Copernicus.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Copernicus (lunar crater)
subject surface form:
Kepler (lunar crater)
this entity surface form:
Copernicus (lunar crater)
subject surface form:
Kepler (lunar crater)
this entity surface form:
Copernicus (lunar crater)