Lassell crater on Mars
E623146
Lassell crater on Mars is an impact crater named in honor of British astronomer William Lassell, known for his discoveries of several planetary moons.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lassell crater on Mars canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6837314 — 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 Mars Context triple: [William Lassell, hasNamesake, Lassell crater on Mars]
-
A.
Hale crater on Mars
Hale crater on Mars is a large impact crater named after American solar astronomer George Ellery Hale, notable for its complex geology and evidence of past water-related activity.
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B.
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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C.
Pavlov crater
Pavlov crater is a large, heavily eroded impact crater on the Moon’s far side, located near the prominent Gagarin crater.
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D.
Stickney crater
Stickney crater is the largest and most prominent impact crater on Mars's moon Phobos, dominating much of its small surface.
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E.
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.
- 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 Mars Target entity description: Lassell crater on Mars is an impact crater named in honor of British astronomer William Lassell, known for his discoveries of several planetary moons.
-
A.
Hale crater on Mars
Hale crater on Mars is a large impact crater named after American solar astronomer George Ellery Hale, notable for its complex geology and evidence of past water-related activity.
-
B.
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.
-
C.
Pavlov crater
Pavlov crater is a large, heavily eroded impact crater on the Moon’s far side, located near the prominent Gagarin crater.
-
D.
Stickney crater
Stickney crater is the largest and most prominent impact crater on Mars's moon Phobos, dominating much of its small surface.
-
E.
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.
- F. None of above. chosen
Statements (15)
| Predicate | Object |
|---|---|
| instanceOf |
Martian crater
ⓘ
impact crater ⓘ |
| eponymKnownFor |
discovery of Neptune's moon Triton
ⓘ
discovery of Uranus's moons Ariel and Umbriel ⓘ discovery of planetary moons ⓘ |
| eponymNationality | British ⓘ |
| hasBodyType | crater ⓘ |
| hasEponymOccupation | astronomer ⓘ |
| hasNamingAuthority | International Astronomical Union ⓘ |
| hasSurfaceType | impact structure ⓘ |
| isPartOf | topography of Mars ⓘ |
| locatedIn | Martian surface ⓘ |
| locatedOn | Mars ⓘ |
| namedAfter | William Lassell ⓘ |
| orbitsWithPrimary | Sun via Mars ⓘ |
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 Mars Description of subject: Lassell crater on Mars is an impact crater named in honor of British astronomer William Lassell, known for his discoveries of several planetary moons.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.