NGC 4725
E459053
NGC 4725 is a barred spiral galaxy in the constellation Coma Berenices, notable for having only one prominent spiral arm.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 4725 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4617770 — 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 4725 Context triple: [Open cluster M25, alsoKnownAs, NGC 4725]
-
A.
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.
-
B.
NGC 2976
NGC 2976 is a nearby dwarf spiral galaxy in the constellation Ursa Major and a member of the M81 Group of galaxies.
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C.
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.
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D.
NGC 1432
NGC 1432 is a reflection nebula in the constellation Taurus that is part of the Pleiades (Seven Sisters) star cluster.
-
E.
NGC 6205
NGC 6205 is a bright, densely packed globular star cluster in the constellation Hercules, commonly known as the Great Hercules Cluster (M13).
- 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 4725 Target entity description: NGC 4725 is a barred spiral galaxy in the constellation Coma Berenices, notable for having only one prominent spiral arm.
-
A.
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.
-
B.
NGC 2976
NGC 2976 is a nearby dwarf spiral galaxy in the constellation Ursa Major and a member of the M81 Group of galaxies.
-
C.
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.
-
D.
NGC 1432
NGC 1432 is a reflection nebula in the constellation Taurus that is part of the Pleiades (Seven Sisters) star cluster.
-
E.
NGC 6205
NGC 6205 is a bright, densely packed globular star cluster in the constellation Hercules, commonly known as the Great Hercules Cluster (M13).
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Seyfert galaxy
ⓘ
astronomical object ⓘ barred spiral galaxy ⓘ ringed galaxy ⓘ |
| AGNType | Seyfert 2 NERFINISHED ⓘ |
| apparentMagnitudeV | 10.2 ⓘ |
| apparentSize | 10.7 × 7.6 arcminutes ⓘ |
| belongsToGroup | Coma I Group NERFINISHED ⓘ |
| bestObservedIn | spring ⓘ |
| catalog | New General Catalogue NERFINISHED ⓘ |
| companionGalaxy | NGC 4747 NERFINISHED ⓘ |
| constellation | Coma Berenices NERFINISHED ⓘ |
| declination | +25° 30′ 03″ ⓘ |
| discoveredBy | William Herschel NERFINISHED ⓘ |
| discoveryDate | 1785-04-06 ⓘ |
| distanceFromEarth |
about 12 megaparsecs
ⓘ
about 40 million light-years ⓘ |
| epoch | J2000 ⓘ |
| galaxyType | intermediate barred spiral galaxy ⓘ |
| hasActiveNucleus | yes ⓘ |
| hasBar | yes ⓘ |
| hasCompanionGalaxy | yes ⓘ |
| hasDustLanes | yes ⓘ |
| hasInnerRing | yes ⓘ |
| hasOuterRing | yes ⓘ |
| hasRingStructure | yes ⓘ |
| hasSpiralArmCount | 1 ⓘ |
| hasStarFormingRegions | yes ⓘ |
| hostGalaxyFor | supernova SN 1940B NERFINISHED ⓘ |
| isAsymmetric | yes ⓘ |
| isIncludedIn |
Principal Galaxies Catalogue
NERFINISHED
ⓘ
Uppsala General Catalogue of Galaxies NERFINISHED ⓘ |
| isObservableFrom | Northern Hemisphere NERFINISHED ⓘ |
| locatedIn | Virgo Supercluster NERFINISHED ⓘ |
| morphologicalType | SAB(r)ab ⓘ |
| NGCNumber | 4725 ⓘ |
| notableFeature | single prominent spiral arm ⓘ |
| otherDesignation |
IRAS 12505+2531
NERFINISHED
ⓘ
MCG+04-30-020 NERFINISHED ⓘ PGC 43451 NERFINISHED ⓘ UGC 7996 NERFINISHED ⓘ |
| radialVelocity | 1200 km/s ⓘ |
| redshift | 0.00403 ⓘ |
| rightAscension | 12h 50m 26s ⓘ |
| supernovaSN1940BDiscoveryYear | 1940 ⓘ |
| supernovaSN1940BType | Type Ia ⓘ |
| surfaceBrightness | low to moderate ⓘ |
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 4725 Description of subject: NGC 4725 is a barred spiral galaxy in the constellation Coma Berenices, notable for having only one prominent spiral arm.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.