Sommerfeld crater
E1030975
Sommerfeld crater is a large, heavily eroded impact crater located on the far side of the Moon, notable for its worn rim and relatively flat, cratered floor.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sommerfeld crater canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13214862 — 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: Sommerfeld crater Context triple: [Kirkwood crater, neighboringCrater, Sommerfeld crater]
-
A.
Krafft crater
Krafft crater is a prominent lunar impact crater on the Moon’s near side, situated in the Oceanus Procellarum region.
-
B.
Vernadsky crater
Vernadsky crater is a lunar impact crater named in honor of Russian-Ukrainian mineralogist and geochemist Vladimir Vernadsky.
-
C.
Haworth crater
Haworth crater is a permanently shadowed impact crater near the Moon’s south pole, noted for its extreme cold and potential reservoirs of water ice.
-
D.
Shoemaker crater
Shoemaker crater is a permanently shadowed impact crater near the Moon’s south pole, notable for its extreme cold and potential deposits of water ice.
-
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: Sommerfeld crater Target entity description: Sommerfeld crater is a large, heavily eroded impact crater located on the far side of the Moon, notable for its worn rim and relatively flat, cratered floor.
-
A.
Krafft crater
Krafft crater is a prominent lunar impact crater on the Moon’s near side, situated in the Oceanus Procellarum region.
-
B.
Vernadsky crater
Vernadsky crater is a lunar impact crater named in honor of Russian-Ukrainian mineralogist and geochemist Vladimir Vernadsky.
-
C.
Haworth crater
Haworth crater is a permanently shadowed impact crater near the Moon’s south pole, noted for its extreme cold and potential reservoirs of water ice.
-
D.
Shoemaker crater
Shoemaker crater is a permanently shadowed impact crater near the Moon’s south pole, notable for its extreme cold and potential deposits of water ice.
-
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 (50)
| Predicate | Object |
|---|---|
| instanceOf | lunar impact crater ⓘ |
| catalog |
Gazetteer of Planetary Nomenclature (IAU)
ⓘ
linked to:
Gazetteer of Planetary Nomenclature
|
| colongitude | 132 ⓘ |
| condition | heavily eroded ⓘ |
| diameter | 169 km ⓘ |
| discoveryMethod | lunar orbiter imaging ⓘ |
| eponym | Arnold Sommerfeld ⓘ |
| floorCharacteristic |
cratered floor
ⓘ
relatively flat floor ⓘ |
| geologicalAge | likely Pre-Nectarian or Nectarian ⓘ |
| hasCentralPeak | no prominent central peak ⓘ |
| hasFeature |
inner wall terraces in places
ⓘ
smaller impact craters along rim ⓘ smaller impact craters on floor ⓘ |
| hasSatelliteCrater |
Sommerfeld A
ⓘ
Sommerfeld B ⓘ Sommerfeld C ⓘ Sommerfeld D ⓘ Sommerfeld E ⓘ Sommerfeld F ⓘ Sommerfeld G ⓘ Sommerfeld H ⓘ Sommerfeld K ⓘ Sommerfeld L ⓘ Sommerfeld M ⓘ Sommerfeld N ⓘ Sommerfeld P ⓘ Sommerfeld R ⓘ Sommerfeld S ⓘ Sommerfeld T ⓘ Sommerfeld U ⓘ Sommerfeld V ⓘ Sommerfeld W ⓘ Sommerfeld X ⓘ Sommerfeld Y ⓘ |
| locatedOn | Moon ⓘ |
| location | far side of the Moon ⓘ |
| morphologicalType | walled plain ⓘ |
| namedAfter | Arnold Sommerfeld ⓘ |
| namedBy | International Astronomical Union ⓘ |
| quadrant | northern far side of the Moon ⓘ |
| relativeLocation |
east of Landau crater
ⓘ
north of Rowland crater ⓘ south of the lunar north pole region ⓘ west of Birkhoff walled plain ⓘ |
| rimCharacteristic | worn rim ⓘ |
| scientificInterest | study of ancient far-side highland impacts ⓘ |
| surfaceAlbedo | low to moderate ⓘ |
| surfaceType | heavily cratered highland terrain ⓘ |
| visibilityFromEarth | not visible 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: Sommerfeld crater Description of subject: Sommerfeld crater is a large, heavily eroded impact crater located on the far side of the Moon, notable for its worn rim and relatively flat, cratered floor.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.