Seleucus crater
E1020899
Seleucus crater is a relatively small, well-preserved impact crater on the Moon’s near side, situated in the Oceanus Procellarum region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Seleucus crater canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13051276 — 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: Seleucus crater Context triple: [Eddington crater, locatedNear, Seleucus crater]
-
A.
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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B.
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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C.
Fra Mauro crater
Fra Mauro crater is a heavily eroded lunar impact crater on the Moon’s near side, best known for lending its name to the Fra Mauro formation and the intended Apollo 13 landing site.
-
D.
Struve crater
Struve crater is a large, eroded lunar impact crater located near the Moon’s western limb, notable for its worn rim and partial flooding by basaltic lava.
-
E.
Pavlov crater
Pavlov crater is a large, heavily eroded impact crater on the Moon’s far side, located near the prominent Gagarin crater.
- 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: Seleucus crater Target entity description: Seleucus crater is a relatively small, well-preserved impact crater on the Moon’s near side, situated in the Oceanus Procellarum region.
-
A.
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.
-
B.
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.
-
C.
Fra Mauro crater
Fra Mauro crater is a heavily eroded lunar impact crater on the Moon’s near side, best known for lending its name to the Fra Mauro formation and the intended Apollo 13 landing site.
-
D.
Struve crater
Struve crater is a large, eroded lunar impact crater located near the Moon’s western limb, notable for its worn rim and partial flooding by basaltic lava.
-
E.
Pavlov crater
Pavlov crater is a large, heavily eroded impact crater on the Moon’s far side, located near the prominent Gagarin crater.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf | lunar impact crater ⓘ |
| albedoContrast | higher than surrounding mare ⓘ |
| appearsIn |
Clementine lunar atlas
NERFINISHED
ⓘ
NASA lunar charts NERFINISHED ⓘ |
| cataloguedIn | IAU Gazetteer of Planetary Nomenclature NERFINISHED ⓘ |
| colongitude | 55 ⓘ |
| depth | 3.5 km ⓘ |
| diameter | 43 km ⓘ |
| eponym | Seleucus of Seleucia NERFINISHED ⓘ |
| floorCharacteristic |
low albedo compared to highlands
ⓘ
relatively flat ⓘ |
| formationProcess | hypervelocity impact ⓘ |
| hasCentralPeak | yes ⓘ |
| hasLROImagery | yes ⓘ |
| hasLunarOrbiterImagery | yes ⓘ |
| hasSatelliteCrater |
Seleucus A
NERFINISHED
ⓘ
Seleucus B NERFINISHED ⓘ |
| innerWalls | terraced ⓘ |
| locatedIn |
Oceanus Procellarum
NERFINISHED
ⓘ
western part of Oceanus Procellarum ⓘ |
| locatedNorthOf | Krafft (crater) NERFINISHED ⓘ |
| locatedNorthwestOf | Euclides (crater) NERFINISHED ⓘ |
| locatedOn |
Moon
NERFINISHED
ⓘ
near side of the Moon ⓘ |
| locatedWestOf | Reiner (crater) NERFINISHED ⓘ |
| morphologicalAgeClass | Eratosthenian NERFINISHED ⓘ |
| namedAfter | Seleucus of Seleucia NERFINISHED ⓘ |
| namedBy | International Astronomical Union NERFINISHED ⓘ |
| observability | easily visible in small telescopes ⓘ |
| outerRimCondition | sharp-edged ⓘ |
| outerRimShape | roughly circular ⓘ |
| preservationState | relatively fresh ⓘ |
| quadrant | northwestern near side ⓘ |
| raySystemPresence | faint rays ⓘ |
| relativeSize | small lunar crater ⓘ |
| rimCondition | well-preserved ⓘ |
| selenographicLatitude | 21.0° N ⓘ |
| selenographicLongitude | 49.0° W ⓘ |
| surfaceType | impact structure in lunar mare ⓘ |
| surroundingTerrain | mare basalt of Oceanus Procellarum ⓘ |
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: Seleucus crater Description of subject: Seleucus crater is a relatively small, well-preserved impact crater on the Moon’s near side, situated in the Oceanus Procellarum region.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.