NGC2017
E540378
NGC 2017 is a small open star cluster located in the southern constellation Lepus, near Orion.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC2017 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5723719 — 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: NGC2017 Context triple: [Lepus, containsDeepSkyObject, NGC2017]
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A.
NGC 2011
NGC 2011 is a young open star cluster embedded in a bright nebula located in the southern constellation Dorado within the Large Magellanic Cloud.
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B.
NGC 2023
NGC 2023 is a bright reflection nebula in the constellation Orion, illuminated by a young B-type star and noted for its complex dust and gas structures.
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C.
NGC
NGC is a widely used astronomical catalog that lists thousands of deep-sky objects such as galaxies, star clusters, and nebulae.
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D.
NGC 2024
NGC 2024, also known as the Flame Nebula, is a bright emission nebula and active star-forming region located in the constellation Orion near the Horsehead Nebula.
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E.
NGC 7320
NGC 7320 is a foreground spiral galaxy in the constellation Pegasus that appears as part of Stephan’s Quintet but is actually much closer to Earth than the other members.
- 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: NGC2017 Target entity description: NGC 2017 is a small open star cluster located in the southern constellation Lepus, near Orion.
-
A.
NGC 2011
NGC 2011 is a young open star cluster embedded in a bright nebula located in the southern constellation Dorado within the Large Magellanic Cloud.
-
B.
NGC 2023
NGC 2023 is a bright reflection nebula in the constellation Orion, illuminated by a young B-type star and noted for its complex dust and gas structures.
-
C.
NGC
NGC is a widely used astronomical catalog that lists thousands of deep-sky objects such as galaxies, star clusters, and nebulae.
-
D.
NGC 2024
NGC 2024, also known as the Flame Nebula, is a bright emission nebula and active star-forming region located in the constellation Orion near the Horsehead Nebula.
-
E.
NGC 7320
NGC 7320 is a foreground spiral galaxy in the constellation Pegasus that appears as part of Stephan’s Quintet but is actually much closer to Earth than the other members.
- F. None of above. chosen
Statements (7)
| Predicate | Object |
|---|---|
| instanceOf | open star cluster ⓘ |
| catalog | New General Catalogue ⓘ |
| celestialCategory | deep-sky object ⓘ |
| hemisphere | southern celestial hemisphere ⓘ |
| locatedInConstellation | Lepus ⓘ |
| locatedNearConstellation | Orion ⓘ |
| skyRegion | southern sky ⓘ |
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: NGC2017 Description of subject: NGC 2017 is a small open star cluster located in the southern constellation Lepus, near Orion.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.