Gagarin crater system
E754275
The Gagarin crater system is a large, complex impact structure on the Moon composed of the main Gagarin crater and its associated satellite craters.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Gagarin crater | 1 |
| Gagarin crater system canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8624169 — 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: Gagarin crater system Context triple: [Gagarin G, partOf, Gagarin crater system]
-
A.
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.
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B.
Vernadsky crater
Vernadsky crater is a lunar impact crater named in honor of Russian-Ukrainian mineralogist and geochemist Vladimir Vernadsky.
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C.
Pavlov crater
Pavlov crater is a large, heavily eroded impact crater on the Moon’s far side, located near the prominent Gagarin crater.
-
D.
Sechenov crater
Sechenov crater is an impact crater on the Moon located near the large Gagarin crater on the lunar far side.
-
E.
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.
- 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: Gagarin crater system Target entity description: The Gagarin crater system is a large, complex impact structure on the Moon composed of the main Gagarin crater and its associated satellite craters.
-
A.
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.
-
B.
Vernadsky crater
Vernadsky crater is a lunar impact crater named in honor of Russian-Ukrainian mineralogist and geochemist Vladimir Vernadsky.
-
C.
Pavlov crater
Pavlov crater is a large, heavily eroded impact crater on the Moon’s far side, located near the prominent Gagarin crater.
-
D.
Sechenov crater
Sechenov crater is an impact crater on the Moon located near the large Gagarin crater on the lunar far side.
-
E.
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.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
crater system
ⓘ
lunar impact structure ⓘ |
| cataloguedIn | International Astronomical Union lunar nomenclature NERFINISHED ⓘ |
| contains | overlapping impact craters ⓘ |
| hasFeature |
eroded crater rims
ⓘ
irregular interior floor ⓘ superposed smaller craters ⓘ |
| hasMainComponent | Gagarin crater NERFINISHED ⓘ |
| hasMorphology | walled plain ⓘ |
| hasOrigin | impact event ⓘ |
| hasPart |
Gagarin A
NERFINISHED
ⓘ
Gagarin B NERFINISHED ⓘ Gagarin C NERFINISHED ⓘ Gagarin D NERFINISHED ⓘ Gagarin E NERFINISHED ⓘ Gagarin F NERFINISHED ⓘ Gagarin G NERFINISHED ⓘ Gagarin H NERFINISHED ⓘ Gagarin K NERFINISHED ⓘ Gagarin L NERFINISHED ⓘ Gagarin M NERFINISHED ⓘ Gagarin N NERFINISHED ⓘ Gagarin P NERFINISHED ⓘ Gagarin Q NERFINISHED ⓘ Gagarin R NERFINISHED ⓘ Gagarin S NERFINISHED ⓘ Gagarin T NERFINISHED ⓘ Gagarin U NERFINISHED ⓘ Gagarin V NERFINISHED ⓘ Gagarin W NERFINISHED ⓘ Gagarin X NERFINISHED ⓘ Gagarin Y NERFINISHED ⓘ Gagarin Z NERFINISHED ⓘ Gagarin crater NERFINISHED ⓘ |
| isPartOf | lunar far-side highlands ⓘ |
| locatedIn | lunar far side ⓘ |
| locatedOn | Moon NERFINISHED ⓘ |
| namedAfter | Yuri Gagarin NERFINISHED ⓘ |
| observedBy |
Lunar Orbiter missions
NERFINISHED
ⓘ
Lunar Reconnaissance Orbiter NERFINISHED ⓘ |
| surfaceType | heavily cratered terrain ⓘ |
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: Gagarin crater system Description of subject: The Gagarin crater system is a large, complex impact structure on the Moon composed of the main Gagarin crater and its associated satellite craters.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Gagarin crater