NGC 5307
E498918
NGC 5307 is a planetary nebula located in the southern constellation Centaurus, notable for its compact, symmetric structure and bright central star.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 5307 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4943596 — 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: NGC 5307 Context triple: [Centaurus constellation region, contains, NGC 5307]
-
A.
NGC 5460
NGC 5460 is an open star cluster located in the southern constellation Centaurus.
-
B.
NGC 3372
NGC 3372 is a massive, bright star-forming nebula in the Carina constellation, famous for housing the unstable supergiant star Eta Carinae and extensive regions of ionized gas and dust.
-
C.
NGC 7317
NGC 7317 is an elliptical galaxy that forms part of Stephan's Quintet, a famous compact group of interacting galaxies in the constellation Pegasus.
-
D.
NGC 598
NGC 598 is the Triangulum Galaxy, a nearby spiral galaxy in the Local Group and one of the closest large galaxies to the Milky Way.
-
E.
NGC 2976
NGC 2976 is a nearby dwarf spiral galaxy in the constellation Ursa Major and a member of the M81 Group of galaxies.
- 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: NGC 5307 Target entity description: NGC 5307 is a planetary nebula located in the southern constellation Centaurus, notable for its compact, symmetric structure and bright central star.
-
A.
NGC 5460
NGC 5460 is an open star cluster located in the southern constellation Centaurus.
-
B.
NGC 3372
NGC 3372 is a massive, bright star-forming nebula in the Carina constellation, famous for housing the unstable supergiant star Eta Carinae and extensive regions of ionized gas and dust.
-
C.
NGC 7317
NGC 7317 is an elliptical galaxy that forms part of Stephan's Quintet, a famous compact group of interacting galaxies in the constellation Pegasus.
-
D.
NGC 598
NGC 598 is the Triangulum Galaxy, a nearby spiral galaxy in the Local Group and one of the closest large galaxies to the Milky Way.
-
E.
NGC 2976
NGC 2976 is a nearby dwarf spiral galaxy in the constellation Ursa Major and a member of the M81 Group of galaxies.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf | planetary nebula ⓘ |
| appearsIn | planetary nebula catalogs ⓘ |
| catalog | New General Catalogue NERFINISHED ⓘ |
| catalogNumber | 5307 ⓘ |
| celestialCategory | deep-sky object ⓘ |
| discoveredBy | John Herschel NERFINISHED ⓘ |
| discoveryMethod | optical observation ⓘ |
| evolvesFrom | asymptotic giant branch star ⓘ |
| hasAngularSize | small ⓘ |
| hasBrightCentralStar | yes ⓘ |
| hasCentralStar | yes ⓘ |
| hasCentralStarVisibility | prominent ⓘ |
| hasDominantLines |
H-alpha emission
ⓘ
[O III] emission ⓘ |
| hasEmission | ionized gas ⓘ |
| hasMorphology |
compact
ⓘ
symmetric ⓘ |
| hasObjectType | PN ⓘ |
| hasSpectralTypeOfCentralStar | hot white dwarf ⓘ |
| hasStructure |
ring-like
ⓘ
shell-like ⓘ |
| hasSymmetry | high ⓘ |
| isObservedIn |
narrowband filters
ⓘ
optical wavelengths ⓘ |
| isPartOf | Milky Way NERFINISHED ⓘ |
| isTargetFor |
amateur astronomers
ⓘ
professional astronomers ⓘ |
| locatedInConstellation | Centaurus NERFINISHED ⓘ |
| locatedInHemisphere | southern celestial hemisphere ⓘ |
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: NGC 5307 Description of subject: NGC 5307 is a planetary nebula located in the southern constellation Centaurus, notable for its compact, symmetric structure and bright central star.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.