NGC 4660
E525478
NGC 4660 is an elliptical galaxy located in the constellation Virgo and is a member of the Virgo Cluster of galaxies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 4660 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5410463 — 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 4660 Context triple: [Virgo Cluster, containsGalaxy, NGC 4660]
-
A.
NGC 4609
NGC 4609 is an open star cluster located in the southern constellation Centaurus, notable for its relatively young stellar population.
-
B.
NGC 4639
NGC 4639 is a barred spiral galaxy in the constellation Virgo that hosts an active galactic nucleus and lies on the outskirts of the Virgo Cluster.
-
C.
NGC 4216
NGC 4216 is a large, edge-on spiral galaxy located in the Virgo constellation and is one of the brighter members of the Virgo Cluster.
-
D.
NGC 4622
NGC 4622 is an unusual spiral galaxy notable for its rare leading spiral arms and distinctive ring-like structure, located in the constellation Centaurus.
-
E.
NGC 4569
NGC 4569 is a bright, gas-stripped spiral galaxy in the Virgo Cluster notable for its unusually low star formation and strong nuclear activity.
- 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 4660 Target entity description: NGC 4660 is an elliptical galaxy located in the constellation Virgo and is a member of the Virgo Cluster of galaxies.
-
A.
NGC 4609
NGC 4609 is an open star cluster located in the southern constellation Centaurus, notable for its relatively young stellar population.
-
B.
NGC 4639
NGC 4639 is a barred spiral galaxy in the constellation Virgo that hosts an active galactic nucleus and lies on the outskirts of the Virgo Cluster.
-
C.
NGC 4216
NGC 4216 is a large, edge-on spiral galaxy located in the Virgo constellation and is one of the brighter members of the Virgo Cluster.
-
D.
NGC 4622
NGC 4622 is an unusual spiral galaxy notable for its rare leading spiral arms and distinctive ring-like structure, located in the constellation Centaurus.
-
E.
NGC 4569
NGC 4569 is a bright, gas-stripped spiral galaxy in the Virgo Cluster notable for its unusually low star formation and strong nuclear activity.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
elliptical galaxy
ⓘ
galaxy ⓘ |
| AGNActivity | weak or absent ⓘ |
| alternativeName |
PGC 42927
NERFINISHED
ⓘ
VCC 2000 NERFINISHED ⓘ |
| apparentMagnitude | ~12 ⓘ |
| apparentMagnitudeV | ~12.0 ⓘ |
| apparentSize | ~1.5′ × 1.0′ ⓘ |
| bestSeenFrom | Northern Hemisphere NERFINISHED ⓘ |
| bestViewingSeason | spring ⓘ |
| catalog | New General Catalogue NERFINISHED ⓘ |
| clusterMembership | Virgo Cluster core region NERFINISHED ⓘ |
| color | red ⓘ |
| constellation | Virgo NERFINISHED ⓘ |
| declination | +11° 11′ ⓘ |
| discoveredBy | William Herschel NERFINISHED ⓘ |
| discoveryDate | 1784 ⓘ |
| distanceFromEarth |
~18 Mpc
ⓘ
~60 million light-years ⓘ |
| dominantStellarPopulationAge | old ⓘ |
| dustContent | low ⓘ |
| environment | cluster galaxy ⓘ |
| galaxyCluster | Virgo Cluster NERFINISHED ⓘ |
| galaxyType | early-type galaxy ⓘ |
| hasBar | false ⓘ |
| hasGlobularClusterSystem | true ⓘ |
| hasSpiralArms | false ⓘ |
| hasSupermassiveBlackHole | true ⓘ |
| hemisphere | Northern celestial hemisphere ⓘ |
| hostCluster | Virgo Cluster NERFINISHED ⓘ |
| HubbleSequenceType | E (elliptical) ⓘ |
| isGravitationallyBoundTo | Virgo Cluster potential ⓘ |
| isNearbyGalaxy | true ⓘ |
| isNonStarforming | true ⓘ |
| locatedIn |
Virgo (constellation)
NERFINISHED
ⓘ
Virgo Cluster NERFINISHED ⓘ |
| memberOf | Virgo Cluster NERFINISHED ⓘ |
| morphologicalType | E ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| radialVelocity | ~1890 km/s ⓘ |
| redshift | 0.0063 ⓘ |
| rightAscension | 12h 44m 32s ⓘ |
| skyLocation | near the center of the Virgo Cluster ⓘ |
| starFormationRate | low ⓘ |
| stellarPopulation | predominantly old stars ⓘ |
| surfaceBrightnessProfile | de Vaucouleurs law NERFINISHED ⓘ |
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 4660 Description of subject: NGC 4660 is an elliptical galaxy located in the constellation Virgo and is a member of the Virgo Cluster of galaxies.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.