Airy (Martian crater)
E754917
Airy (Martian crater) is a prominent impact crater on Mars that serves as a key reference point for defining the planet’s prime meridian.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Airy (Martian crater) canonical | 2 |
| Airy-0 (Martian crater) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8712642 — 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: Airy (Martian crater) Context triple: [George Biddell Airy, hasCraterNamedAfter, Airy (Martian crater)]
-
A.
Airy (lunar crater)
Airy (lunar crater) is a small impact crater on the Moon named in honor of British astronomer George Biddell Airy, located in the southern highlands near the crater Tycho.
-
B.
Eddington crater
Eddington crater is a large, lava-flooded lunar impact feature on the Moon’s near side, notable for its heavily eroded rim and partially submerged floor.
-
C.
Fizeau crater
Fizeau crater is a large impact crater on the far side of the Moon, named in honor of French physicist Hippolyte Fizeau.
-
D.
Herschel crater
Herschel crater is a massive, prominent impact crater dominating one hemisphere of Saturn’s moon Mimas, giving the moon its characteristic “Death Star”-like appearance.
-
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: Airy (Martian crater) Target entity description: Airy (Martian crater) is a prominent impact crater on Mars that serves as a key reference point for defining the planet’s prime meridian.
-
A.
Airy (lunar crater)
Airy (lunar crater) is a small impact crater on the Moon named in honor of British astronomer George Biddell Airy, located in the southern highlands near the crater Tycho.
-
B.
Eddington crater
Eddington crater is a large, lava-flooded lunar impact feature on the Moon’s near side, notable for its heavily eroded rim and partially submerged floor.
-
C.
Fizeau crater
Fizeau crater is a large impact crater on the far side of the Moon, named in honor of French physicist Hippolyte Fizeau.
-
D.
Herschel crater
Herschel crater is a massive, prominent impact crater dominating one hemisphere of Saturn’s moon Mimas, giving the moon its characteristic “Death Star”-like appearance.
-
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 (36)
| Predicate | Object |
|---|---|
| instanceOf |
Martian crater
ⓘ
impact crater ⓘ small impact crater ⓘ |
| belongsTo | system of IAU-approved Martian surface features ⓘ |
| body | Mars ⓘ |
| cartographicImportance | high ⓘ |
| classification | named Martian impact crater ⓘ |
| coordinateReferenceRole | prime meridian anchor for Mars ⓘ |
| coordinateSystemRole | reference feature for Mars longitude system ⓘ |
| discoveredBy | 19th-century Mars observers ⓘ |
| eponym |
George Biddell Airy
ⓘ
linked to:
Sir George Airy
|
| featureOf | Martian equatorial region ⓘ |
| hasCoordinateSystem | center used to define Mars longitude ⓘ |
| hasDiameter | approximately 40 kilometers ⓘ |
| hasGeologicContext | Noachian-aged terrain ⓘ |
| hasInnerCrater | Airy-0 (Martian crater) ⓘ |
| hasLatitude | near Martian equator ⓘ |
| hasOfficialName | Airy ⓘ |
| hasSubdivision |
Airy-0 (Martian crater)
ⓘ
linked to:
Airy (Martian crater)
|
| hemisphere | southern hemisphere of Mars ⓘ |
| locatedIn |
Sinus Meridiani
ⓘ
linked to:
Margaritifer Sinus quadrangle
Terra Meridiani region ⓘ |
| locatedOn | Mars ⓘ |
| locatedWithin | Airy (Martian crater) ⓘ |
| mapReference | Mars global cartographic system ⓘ |
| nameApprovedBy | International Astronomical Union ⓘ |
| namedAfter |
George Biddell Airy
ⓘ
linked to:
Sir George Airy
|
| namedBy | Giovanni Schiaparelli ⓘ |
| nameType | eponymous crater name ⓘ |
| observedBy |
Mars orbiters
ⓘ
telescopic observations from Earth ⓘ |
| primeMeridianRelation | contains Airy-0, the defining point of Mars prime meridian ⓘ |
| servesAs | reference point for Mars prime meridian ⓘ |
| surfaceFeatureType | crater ⓘ |
| usedFor |
definition of the Martian prime meridian
ⓘ
definition of the Martian prime meridian ⓘ |
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: Airy (Martian crater) Description of subject: Airy (Martian crater) is a prominent impact crater on Mars that serves as a key reference point for defining the planet’s prime meridian.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Sir George Airy
linked to: Airy (Martian crater)
subject linked to:
Airy (Martian crater)