Eta Aquariids
E867058
The Eta Aquariids are an annual meteor shower in early May produced by debris from Halley’s Comet, known for fast, bright meteors best seen from the Southern Hemisphere.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Eta Aquariids canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10489015 — 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: Eta Aquariids Context triple: [Aquarius, associatedMeteorShower, Eta Aquariids]
-
A.
Delta Aquariids
The Delta Aquariids are an annual meteor shower that peaks in late July, producing a steady display of medium-speed meteors that appear to radiate from the constellation Aquarius.
-
B.
Alpha Capricornids
Alpha Capricornids is an annual meteor shower, active in mid-summer, known for producing relatively bright, slow-moving meteors and occasional fireballs.
-
C.
Chi Capricornids
The Chi Capricornids are a minor annual meteor shower that appears to radiate from the constellation Capricornus.
-
D.
Sigma Capricornids
The Sigma Capricornids are a minor annual meteor shower associated with the constellation Capricornus, producing relatively few but occasionally bright meteors.
-
E.
Perseids
The Perseids were the mythological royal dynasty descended from the hero Perseus, associated with several legendary kings and heroes in Greek mythology.
- 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: Eta Aquariids Target entity description: The Eta Aquariids are an annual meteor shower in early May produced by debris from Halley’s Comet, known for fast, bright meteors best seen from the Southern Hemisphere.
-
A.
Delta Aquariids
The Delta Aquariids are an annual meteor shower that peaks in late July, producing a steady display of medium-speed meteors that appear to radiate from the constellation Aquarius.
-
B.
Alpha Capricornids
Alpha Capricornids is an annual meteor shower, active in mid-summer, known for producing relatively bright, slow-moving meteors and occasional fireballs.
-
C.
Chi Capricornids
The Chi Capricornids are a minor annual meteor shower that appears to radiate from the constellation Capricornus.
-
D.
Sigma Capricornids
The Sigma Capricornids are a minor annual meteor shower associated with the constellation Capricornus, producing relatively few but occasionally bright meteors.
-
E.
Perseids
The Perseids were the mythological royal dynasty descended from the hero Perseus, associated with several legendary kings and heroes in Greek mythology.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | meteor shower ⓘ |
| activityEnd | around May 28 ⓘ |
| activityStart | around April 19 ⓘ |
| alsoKnownAs | Eta Aquarids NERFINISHED ⓘ |
| alsoVisibleFromHemisphere | Northern Hemisphere NERFINISHED ⓘ |
| annualEvent | true ⓘ |
| associatedCometOrbitalPeriod | about 76 years GENERATED ⓘ |
| bestSeenFromHemisphere | Southern Hemisphere ⓘ |
| bestViewingDirection | toward eastern sky before dawn ⓘ |
| cause | Earth passing through debris stream of Halley’s Comet ⓘ |
| discoveredBy | G. L. Tupman NERFINISHED ⓘ |
| firstObservedYear | 1870 ⓘ |
| hemisphereStrength | stronger in Southern Hemisphere ⓘ |
| hemisphereVisibilityDifference | radiant higher in Southern Hemisphere sky ⓘ |
| IAUShowerNumber | 031 ⓘ |
| meteorAppearance | bright ⓘ |
| meteorColorCommon | yellowish ⓘ |
| meteorDuration | short-lived streaks ⓘ |
| meteorEntryAngle | steep ⓘ |
| meteorSpeedCategory | fast ⓘ |
| meteorStreamType | Halley-type stream ⓘ |
| notableFor |
fast meteors
ⓘ
high Southern Hemisphere rates ⓘ |
| occursAnnually | yes ⓘ |
| occursInMonth |
April
ⓘ
May ⓘ |
| originatesFrom | Comet Halley NERFINISHED ⓘ |
| parentBody | 1P/Halley NERFINISHED ⓘ |
| parentCometInclination | high inclination ⓘ |
| parentCometPerihelionDistance | about 0.586 AU ⓘ |
| parentCometType | periodic comet ⓘ |
| peakPeriod | early May ⓘ |
| radiantConstellation | Aquarius NERFINISHED ⓘ |
| radiantDeclinationApprox | -1 degree ⓘ |
| radiantRightAscensionApprox | 338 degrees ⓘ |
| radiantStar | Eta Aquarii NERFINISHED ⓘ |
| relatedMeteorShower | Orionids GENERATED ⓘ |
| showerActivityClass | strong ⓘ |
| showerCode | ETA NERFINISHED ⓘ |
| trailCharacteristic | persistent trains ⓘ |
| typicalMeteorSpeed | about 66 km/s GENERATED ⓘ |
| typicalObservationCondition | dark, clear skies GENERATED ⓘ |
| typicalObserverAdvice | observe after radiant rises well above horizon GENERATED ⓘ |
| typicalPeakDates |
May 5
GENERATED
ⓘ
May 6 GENERATED ⓘ |
| visibilityBestTime | pre-dawn ⓘ |
| zenithalHourlyRate | up to 50 meteors per hour ⓘ |
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: Eta Aquariids Description of subject: The Eta Aquariids are an annual meteor shower in early May produced by debris from Halley’s Comet, known for fast, bright meteors best seen from the Southern Hemisphere.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.