Gagarin crater on the Moon
E40644
lunar impact crater
walled plain
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.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Gagarin (crater) | 4 |
| Gagarin (lunar walled plain) | 1 |
| Gagarin crater | 1 |
| Gagarin crater on Mars | 1 |
| Gagarin crater on the Moon canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T316428 — 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 on the Moon Context triple: [Yuri Gagarin, hasCraterNamedAfter, Gagarin crater on the Moon]
-
A.
Luna 2
Luna 2 was a Soviet space probe that became the first human-made object to reach the Moon, marking a major milestone in early space exploration.
-
B.
Athis-Mons
Athis-Mons is a suburban commune in the southern outskirts of Paris, France, known for its proximity to major transport hubs and its location along the Seine and Orge rivers.
-
C.
Moon
The Moon is Earth's only natural satellite, a rocky celestial body that orbits our planet and significantly influences tides, calendars, and human culture.
-
D.
Luna 1
Luna 1 was a Soviet spacecraft launched in 1959 that became the first human-made object to reach the vicinity of the Moon and enter a heliocentric orbit.
-
E.
Vredefort Dome
Vredefort Dome is the world’s largest and oldest known impact crater, located in South Africa and formed by a massive meteorite strike over two billion years ago.
- 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 on the Moon Target entity description: 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.
-
A.
Luna 2
Luna 2 was a Soviet space probe that became the first human-made object to reach the Moon, marking a major milestone in early space exploration.
-
B.
Athis-Mons
Athis-Mons is a suburban commune in the southern outskirts of Paris, France, known for its proximity to major transport hubs and its location along the Seine and Orge rivers.
-
C.
Moon
The Moon is Earth's only natural satellite, a rocky celestial body that orbits our planet and significantly influences tides, calendars, and human culture.
-
D.
Luna 1
Luna 1 was a Soviet spacecraft launched in 1959 that became the first human-made object to reach the vicinity of the Moon and enter a heliocentric orbit.
-
E.
Vredefort Dome
Vredefort Dome is the world’s largest and oldest known impact crater, located in South Africa and formed by a massive meteorite strike over two billion years ago.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
lunar impact crater
ⓘ
walled plain ⓘ |
| albedo | low to moderate ⓘ |
| category | Impact craters on the Moon ⓘ |
| colongitude | ~226 ⓘ |
| coordinateSystem | selenographic coordinates ⓘ |
| diameter | ~265 km ⓘ |
| eponymCountry | Soviet Union ⓘ |
| eponymDistinction | first human in space ⓘ |
| eponymOccupation | cosmonaut ⓘ |
| floorCratering | densely cratered ⓘ |
| geologicAge | pre-Nectarian or Nectarian era (heavily degraded) ⓘ |
| hasFeature |
central ridges
ⓘ
multiple satellite craters ⓘ overlapping smaller craters on rim ⓘ |
| hasOfficialName |
Yuri Gagarin
ⓘ
surface form:
Gagarin
|
| hasSatelliteCrater |
Gagarin G
ⓘ
Gagarin M ⓘ Gagarin N ⓘ Gagarin G ⓘ
surface form:
Gagarin T
Gagarin G ⓘ
surface form:
Gagarin Z
|
| honors |
Yuri Gagarin
ⓘ
surface form:
Yuri Alekseyevich Gagarin
|
| interiorAlbedo | similar to surrounding terrain ⓘ |
| interiorFloor |
marked by many small craters
ⓘ
relatively level ⓘ |
| locatedOn | Moon ⓘ |
| locatedOnSide | far side of the Moon ⓘ |
| mappingMissions |
Apollo orbital missions
ⓘ
Luna 3 ⓘ Lunar Orbiter missions ⓘ |
| namedAfter | Yuri Gagarin ⓘ |
| namedForEvent | human spaceflight achievements ⓘ |
| namingAuthority | International Astronomical Union ⓘ |
| neighboringCrater |
Chaplygin crater
ⓘ
Kondratyuk crater ⓘ Levi-Civita crater ⓘ Pavlov crater ⓘ Sechenov crater ⓘ Sikorsky crater ⓘ |
| quadrant | lunar far-side southern hemisphere ⓘ |
| rimCondition |
eroded
ⓘ
heavily worn ⓘ |
| rimHeight | lowered and rounded by impacts ⓘ |
| shape | roughly circular ⓘ |
| surfaceType | heavily cratered highlands ⓘ |
| visibilityFromEarth | not visible from Earth’s near side ⓘ |
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 on the Moon Description of subject: 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.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Gagarin crater on Mars
this entity surface form:
Gagarin crater
subject surface form:
Sikorsky (crater)
this entity surface form:
Gagarin (crater)
this entity surface form:
Gagarin (crater)
this entity surface form:
Gagarin (crater)
this entity surface form:
Gagarin (crater)
this entity surface form:
Gagarin (lunar walled plain)