Kirkwood gaps
E314582
Kirkwood gaps are regions in the asteroid belt with a noticeably low density of asteroids, caused by orbital resonances with Jupiter.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Kirkwood gaps canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T2963237 — 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: Kirkwood gaps Context triple: [Daniel Kirkwood, knownFor, Kirkwood gaps]
-
A.
Laplace resonance
Laplace resonance is a three-body orbital resonance in which the orbital periods of Jupiter’s moons Io, Europa, and Ganymede are linked in a precise 1:2:4 ratio, strongly affecting their dynamics and internal heating.
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B.
Cassini Division
Cassini Division is the prominent dark gap between Saturn’s A and B rings, created by gravitational interactions with the moon Mimas.
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C.
Kuiper Belt
The Kuiper Belt is a vast, doughnut-shaped region of icy bodies beyond Neptune that includes dwarf planets like Pluto and is a major source of comets in our solar system.
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D.
Kuiper Belt objects
Kuiper Belt objects are icy celestial bodies orbiting the Sun beyond Neptune, thought to be remnants from the early solar system and the source of many short-period comets.
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E.
Oort cloud
The Oort cloud is a distant, spherical shell of icy bodies surrounding the Solar System, thought to be the source of many long-period comets.
- 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: Kirkwood gaps Target entity description: Kirkwood gaps are regions in the asteroid belt with a noticeably low density of asteroids, caused by orbital resonances with Jupiter.
-
A.
Laplace resonance
Laplace resonance is a three-body orbital resonance in which the orbital periods of Jupiter’s moons Io, Europa, and Ganymede are linked in a precise 1:2:4 ratio, strongly affecting their dynamics and internal heating.
-
B.
Cassini Division
Cassini Division is the prominent dark gap between Saturn’s A and B rings, created by gravitational interactions with the moon Mimas.
-
C.
Kuiper Belt
The Kuiper Belt is a vast, doughnut-shaped region of icy bodies beyond Neptune that includes dwarf planets like Pluto and is a major source of comets in our solar system.
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D.
Kuiper Belt objects
Kuiper Belt objects are icy celestial bodies orbiting the Sun beyond Neptune, thought to be remnants from the early solar system and the source of many short-period comets.
-
E.
Oort cloud
The Oort cloud is a distant, spherical shell of icy bodies surrounding the Solar System, thought to be the source of many long-period comets.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
celestial mechanics phenomenon
ⓘ
feature of the asteroid belt ⓘ orbital resonance phenomenon ⓘ |
| analogousTo | resonant gaps in planetary ring systems ⓘ |
| areEvidenceFor |
gravitational influence of Jupiter on the asteroid belt
ⓘ
importance of mean-motion resonances in planetary systems ⓘ |
| canLeadTo |
injection of asteroids into near-Earth space
ⓘ
transfer of asteroids to planet-crossing orbits ⓘ |
| cause | orbital resonances with Jupiter ⓘ |
| describedBy | Daniel Kirkwood ⓘ |
| discoveredBy | Daniel Kirkwood ⓘ |
| discoveryYear | 1866 ⓘ |
| fieldOfStudy |
dynamical astronomy
ⓘ
orbital dynamics ⓘ planetary science ⓘ |
| hasCategory |
Asteroid belt
ⓘ
Celestial mechanics ⓘ Orbital resonance ⓘ Solar System dynamics ⓘ
linked to:
Celestial Mechanics
|
| hasCause | mean-motion resonances with Jupiter ⓘ |
| hasEffect |
depletion of asteroids at certain orbital periods
ⓘ
low density of asteroids at specific semi-major axes ⓘ |
| hasExample |
2:1 Kirkwood gap near 3.27 astronomical units
ⓘ
3:1 Kirkwood gap near 2.5 astronomical units ⓘ 5:2 Kirkwood gap near 2.82 astronomical units ⓘ |
| influenceOn | long-term stability of asteroid orbits ⓘ |
| locatedIn |
Solar System
ⓘ
asteroid belt ⓘ |
| mechanism |
gravitational perturbations from Jupiter
ⓘ
increase of asteroid orbital eccentricity ⓘ removal of asteroids from resonant orbits ⓘ |
| namedAfter | Daniel Kirkwood ⓘ |
| namedAfterNationality | American ⓘ |
| namedAfterOccupation | astronomer ⓘ |
| observedAs | depletions in the distribution of asteroid semi-major axes ⓘ |
| observedUsing | statistical distribution of known asteroid orbits ⓘ |
| occursAt | specific semi-major axes in the main asteroid belt ⓘ |
| partOf | structure of the main asteroid belt ⓘ |
| relatedTo |
Jupiter
ⓘ
asteroid belt ⓘ asteroid dynamics ⓘ celestial mechanics ⓘ mean-motion resonance ⓘ |
| typicalResonanceRatios |
2:1 with Jupiter
ⓘ
3:1 with Jupiter ⓘ 5:2 with Jupiter ⓘ 7:3 with Jupiter ⓘ |
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: Kirkwood gaps Description of subject: Kirkwood gaps are regions in the asteroid belt with a noticeably low density of asteroids, caused by orbital resonances with Jupiter.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.