Keeler Gap
E192587
The Keeler Gap is a narrow, prominent division within Saturn’s A ring, notable for containing small ringlets and being shaped by the gravitational influence of the moon Daphnis.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Keeler Gap canonical | 9 |
How this entity was disambiguated
This entity first appeared as the object of triple T1691831 — 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: Keeler Gap Context triple: [James Edward Keeler, hasNamesake, Keeler Gap]
-
A.
Mole Gap
Mole Gap is a scenic, narrow river valley in Surrey, England, known for its chalk landscape, woodlands, and role as a key natural corridor through the North Downs.
-
B.
Kaweah Gap
Kaweah Gap is a high mountain pass in California’s Sierra Nevada that serves as a key crossing point along the High Sierra Trail between the Great Western Divide and the Kaweah Peaks region.
-
C.
Cascadilla Gorge
Cascadilla Gorge is a scenic, steep-sided ravine in Ithaca, New York, known for its cascading waterfalls, stone trails, and role as a popular natural area near Cornell University.
-
D.
Nowlands Gap
Nowlands Gap is a mountain pass in the Liverpool Range of New South Wales, Australia, providing a key crossing point through the range.
-
E.
Newfound Gap
Newfound Gap is a high mountain pass and scenic overlook on the Tennessee–North Carolina border, renowned for its panoramic views and as a major access point within Great Smoky Mountains National Park.
- 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: Keeler Gap Target entity description: The Keeler Gap is a narrow, prominent division within Saturn’s A ring, notable for containing small ringlets and being shaped by the gravitational influence of the moon Daphnis.
-
A.
Mole Gap
Mole Gap is a scenic, narrow river valley in Surrey, England, known for its chalk landscape, woodlands, and role as a key natural corridor through the North Downs.
-
B.
Kaweah Gap
Kaweah Gap is a high mountain pass in California’s Sierra Nevada that serves as a key crossing point along the High Sierra Trail between the Great Western Divide and the Kaweah Peaks region.
-
C.
Cascadilla Gorge
Cascadilla Gorge is a scenic, steep-sided ravine in Ithaca, New York, known for its cascading waterfalls, stone trails, and role as a popular natural area near Cornell University.
-
D.
Nowlands Gap
Nowlands Gap is a mountain pass in the Liverpool Range of New South Wales, Australia, providing a key crossing point through the range.
-
E.
Newfound Gap
Newfound Gap is a high mountain pass and scenic overlook on the Tennessee–North Carolina border, renowned for its panoramic views and as a major access point within Great Smoky Mountains National Park.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical structure
ⓘ
planetary ring gap ⓘ |
| belongsToPlanet | Saturn ⓘ |
| contains |
dusty ring material
ⓘ
narrow ringlets ⓘ |
| discoveredBy | James Edward Keeler ⓘ |
| discoveryMethod | telescopic observation ⓘ |
| hasAlternativeName | Saturn A-ring Keeler Gap ⓘ |
| hasDiscoveryDate | 1888 ⓘ |
| hasDiscoveryLocation | Lick Observatory ⓘ |
| hasDynamicalOrigin | orbital resonances with Daphnis ⓘ |
| hasEccentricity | near zero ⓘ |
| hasEponym | James Edward Keeler ⓘ |
| hasFeature |
non-circular edge distortions
ⓘ
wavy edges along inner and outer boundaries ⓘ |
| hasInclination | approximately 0 degrees to Saturn's equator ⓘ |
| hasInnerEdgeRadius | approximately 136,480 kilometers from Saturn's center ⓘ |
| hasMeanRadius | approximately 136,530 kilometers from Saturn's center ⓘ |
| hasNotableMoon | Daphnis ⓘ |
| hasObservationWavelength |
infrared
ⓘ
radio ⓘ visible light ⓘ |
| hasOrbitalPlane | equatorial plane of Saturn ⓘ |
| hasOrbitalResonance | with Daphnis ⓘ |
| hasOuterEdgeRadius | approximately 136,570 kilometers from Saturn's center ⓘ |
| hasParticleSizeRange | dust to meter-sized bodies ⓘ |
| hasShepherdMoon | Daphnis ⓘ |
| hasWidth | about 35 kilometers ⓘ |
| isComposedOf | water-ice particles in ringlets ⓘ |
| isDivisionOf | Saturn's A ring ⓘ |
| isInSolarSystem | Solar System ⓘ |
| isInteriorTo | outer edge of Saturn's A ring ⓘ |
| isLocatedBetween | main body of A ring and outer A ring material ⓘ |
| isNamedAfter | James Edward Keeler ⓘ |
| isNarrowerThan | Encke Gap ⓘ |
| isObservedFrom |
Earth-based telescopes
ⓘ
spacecraft flybys of Saturn ⓘ |
| isOutside | Encke Gap ⓘ |
| isPerturbedBy | moon Daphnis ⓘ |
| isShapedBy | gravitational influence of Daphnis ⓘ |
| isTypeOf | resonant ring gap ⓘ |
| locatedIn | ring system of Saturn ⓘ |
| orbits | Saturn ⓘ |
| partOf | A ring of Saturn ⓘ |
| shows |
edge waves caused by Daphnis
ⓘ
vertical structures in ring material ⓘ |
| wasImagedBy |
Cassini spacecraft
ⓘ
linked to:
Cassini–Huygens
|
| wasStudiedBy |
Cassini mission
ⓘ
linked to:
Cassini–Huygens
|
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: Keeler Gap Description of subject: The Keeler Gap is a narrow, prominent division within Saturn’s A ring, notable for containing small ringlets and being shaped by the gravitational influence of the moon Daphnis.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.