Lassell crater on Triton
E624688
Lassell crater on Triton is an impact feature on Neptune’s largest moon named in honor of British astronomer William Lassell, who discovered Triton in 1846.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lassell crater on Triton canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6837315 — 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: Lassell crater on Triton Context triple: [William Lassell, hasNamesake, Lassell crater on Triton]
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A.
Lassell crater on Mars
Lassell crater on Mars is an impact crater named in honor of British astronomer William Lassell, known for his discoveries of several planetary moons.
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B.
Lassell crater on the Moon
Lassell crater on the Moon is a lunar impact crater named in honor of the 19th-century English astronomer William Lassell, known for his discoveries of several planetary moons.
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C.
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.
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D.
Lomonosov crater on the Moon
Lomonosov crater on the Moon is a lunar impact crater named in honor of Russian polymath Mikhail Lomonosov, recognized for its location on the Moon’s far side and its relatively well-preserved structure.
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E.
Stickney crater
Stickney crater is the largest and most prominent impact crater on Mars's moon Phobos, dominating much of its small surface.
- 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: Lassell crater on Triton Target entity description: Lassell crater on Triton is an impact feature on Neptune’s largest moon named in honor of British astronomer William Lassell, who discovered Triton in 1846.
-
A.
Lassell crater on Mars
Lassell crater on Mars is an impact crater named in honor of British astronomer William Lassell, known for his discoveries of several planetary moons.
-
B.
Lassell crater on the Moon
Lassell crater on the Moon is a lunar impact crater named in honor of the 19th-century English astronomer William Lassell, known for his discoveries of several planetary moons.
-
C.
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.
-
D.
Lomonosov crater on the Moon
Lomonosov crater on the Moon is a lunar impact crater named in honor of Russian polymath Mikhail Lomonosov, recognized for its location on the Moon’s far side and its relatively well-preserved structure.
-
E.
Stickney crater
Stickney crater is the largest and most prominent impact crater on Mars's moon Phobos, dominating much of its small surface.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
impact crater
ⓘ
surface feature on Triton ⓘ |
| associatedWithDiscoveryYearOfEponymObject | 1846 ⓘ |
| belongsToPlanetarySystem | Neptune planetary system NERFINISHED ⓘ |
| belongsToStarSystem | Solar System NERFINISHED ⓘ |
| celestialBodyTypeOfPrimary | natural satellite ⓘ |
| discoveredBy | Voyager 2 imaging team NERFINISHED ⓘ |
| discoveryMethod | spacecraft imaging ⓘ |
| eponymCitizenship | United Kingdom NERFINISHED ⓘ |
| eponymDiscoveredFor | Neptune NERFINISHED ⓘ |
| eponymDiscoveredObject | Triton NERFINISHED ⓘ |
| eponymFullName | William Lassell NERFINISHED ⓘ |
| eponymKnownFor |
discovery of Neptune’s ring system
ⓘ
discovery of Triton ⓘ discovery of Uranus’s moons Ariel and Umbriel ⓘ |
| eponymOccupation | astronomer ⓘ |
| featureClass | impact structure ⓘ |
| governingBodyForName | International Astronomical Union NERFINISHED ⓘ |
| hasCoordinateSystem | Triton coordinate system ⓘ |
| hasSurfaceEnvironment | cold, icy surface ⓘ |
| locatedIn |
Neptune system
ⓘ
outer Solar System ⓘ |
| locatedOn | Triton NERFINISHED ⓘ |
| namedAfter | William Lassell NERFINISHED ⓘ |
| namingTheme | astronomers and scientists associated with Neptune and Triton ⓘ |
| orbitsWithPrimary | Neptune NERFINISHED ⓘ |
| partOf |
Triton geology
ⓘ
Triton impact crater population ⓘ |
| primaryBody | Neptune NERFINISHED ⓘ |
| surfaceFeatureCategory | crater on an icy moon ⓘ |
| surfaceFeatureType | crater ⓘ |
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: Lassell crater on Triton Description of subject: Lassell crater on Triton is an impact feature on Neptune’s largest moon named in honor of British astronomer William Lassell, who discovered Triton in 1846.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.