NGC 1432
E102230
NGC 1432 is a reflection nebula in the constellation Taurus that is part of the Pleiades (Seven Sisters) star cluster.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T869960 — 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 1432 Context triple: [Seven Sisters, hasNGCNumber, NGC 1432]
-
A.
Stephan's Quintet
Stephan's Quintet is a visually striking compact group of five galaxies in the constellation Pegasus, famous for their complex gravitational interactions and dramatic appearance in astronomical imagery.
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B.
Triangulum Galaxy
The Triangulum Galaxy is a nearby spiral galaxy in the Local Group, notable as one of the closest large galaxies to the Milky Way and a companion to the Andromeda Galaxy.
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C.
globular star cluster M13
Globular star cluster M13, also known as the Great Hercules Cluster, is a dense, bright spherical collection of hundreds of thousands of ancient stars located in the constellation Hercules and is one of the most prominent globular clusters visible from Earth.
-
D.
Carina Nebula
The Carina Nebula is a vast, active star-forming region in the Milky Way known for its towering gas and dust pillars and dramatic young stellar clusters.
-
E.
Messier
Messier is a French-origin surname most famously associated with Canadian ice hockey legend Mark Messier.
- 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 1432 Target entity description: NGC 1432 is a reflection nebula in the constellation Taurus that is part of the Pleiades (Seven Sisters) star cluster.
-
A.
NGC 6822
NGC 6822 is a barred irregular dwarf galaxy located in the constellation Sagittarius and is one of the nearest and best-studied galaxies outside the Milky Way.
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B.
Stephan's Quintet
Stephan's Quintet is a visually striking compact group of five galaxies in the constellation Pegasus, famous for their complex gravitational interactions and dramatic appearance in astronomical imagery.
-
C.
IC 10
IC 10 is a nearby irregular starburst galaxy notable for its intense star formation and membership in the Local Group.
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D.
Triangulum Galaxy
The Triangulum Galaxy is a nearby spiral galaxy in the Local Group, notable as one of the closest large galaxies to the Milky Way and a companion to the Andromeda Galaxy.
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E.
Andromeda I
Andromeda I is a dwarf spheroidal satellite galaxy of the Andromeda Galaxy (M31) located within the Local Group.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
reflection nebula ⓘ |
| angularSize | about 60 arcminutes (approximate, extended nebulosity) ⓘ |
| associatedWith |
Pleiades
ⓘ
surface form:
Pleiades (Seven Sisters)
|
| belongsTo |
Gould Belt
ⓘ
surface form:
Gould Belt region
|
| bestObservedIn |
autumn
ⓘ
winter ⓘ |
| bestSeenFrom | Earth’s mid-northern latitudes ⓘ |
| catalog | New General Catalogue ⓘ |
| contains |
interstellar dust
ⓘ
interstellar gas ⓘ |
| declinationEpochJ2000 | +24° (approximate) ⓘ |
| discoveredBy | Wilhelm Tempel ⓘ |
| discoveryCentury | 19th century ⓘ |
| distanceFromEarth |
about 135 parsecs
ⓘ
about 440 light-years ⓘ |
| dominantRadiationMechanism | starlight scattering by dust ⓘ |
| emissionMechanism | reflected starlight rather than emission lines ⓘ |
| hasAlternativeDesignation |
Merope Nebula
ⓘ
surface form:
Pleiades reflection nebulosity (part)
|
| hasApparentMagnitude | about 4–5 (integrated, with Pleiades nebulosity) ⓘ |
| hasColor | bluish ⓘ |
| hasNGCNumber | 1432 ⓘ |
| illuminatedBy |
Pleiades
ⓘ
surface form:
Pleiades stars
|
| includedIn |
New General Catalogue
ⓘ
surface form:
NGC catalogue of nebulae and clusters
|
| isInGalaxy | Milky Way ⓘ |
| isNonIonizedNebula | true ⓘ |
| isPartOf | Taurus molecular cloud complex (projected association) ⓘ |
| locatedIn | northern celestial hemisphere ⓘ |
| locatedInConstellation | Taurus ⓘ |
| nearTo | bright Pleiades stars ⓘ |
| nebulaType | reflection nebula ⓘ |
| observedBy |
Hubble Space Telescope
ⓘ
ground-based wide-field telescopes ⓘ |
| observedWith |
amateur telescopes
ⓘ
professional observatories ⓘ |
| partOf |
Messier 45
ⓘ
Pleiades ⓘ
surface form:
Pleiades star cluster
|
| reasonForColor | preferential scattering of blue light ⓘ |
| rightAscensionEpochJ2000 | 03h 46m (approximate) ⓘ |
| skyRegion | near the ecliptic ⓘ |
| visibleIn | optical wavelengths ⓘ |
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 1432 Description of subject: NGC 1432 is a reflection nebula in the constellation Taurus that is part of the Pleiades (Seven Sisters) star cluster.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
NGC 1435
this entity surface form:
NGC 1435
this entity surface form:
NGC 1435