NGC 4689
E526971
NGC 4689 is a spiral galaxy located in the constellation Coma Berenices and is a member of the Virgo Cluster of galaxies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 4689 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5410484 — 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 4689 Context triple: [Virgo Cluster, containsGalaxy, NGC 4689]
-
A.
NGC 4649
NGC 4649, also known as Messier 60, is a massive elliptical galaxy in the constellation Virgo notable for its bright central region and supermassive black hole.
-
B.
NGC 4478
NGC 4478 is an elliptical galaxy located in the constellation Virgo and is a member of the Virgo Cluster of galaxies.
-
C.
NGC 4486
NGC 4486, better known as Messier 87 (M87), is a giant elliptical galaxy notable for its supermassive black hole and prominent relativistic jet.
-
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 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.
- 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 4689 Target entity description: NGC 4689 is a spiral galaxy located in the constellation Coma Berenices and is a member of the Virgo Cluster of galaxies.
-
A.
NGC 4649
NGC 4649, also known as Messier 60, is a massive elliptical galaxy in the constellation Virgo notable for its bright central region and supermassive black hole.
-
B.
NGC 4478
NGC 4478 is an elliptical galaxy located in the constellation Virgo and is a member of the Virgo Cluster of galaxies.
-
C.
NGC 4486
NGC 4486, better known as Messier 87 (M87), is a giant elliptical galaxy notable for its supermassive black hole and prominent relativistic jet.
-
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 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.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf | spiral galaxy ⓘ |
| alternativeName |
PGC 43110
NERFINISHED
ⓘ
UGC 7949 NERFINISHED ⓘ |
| apparentMagnitudeV | 11.9 ⓘ |
| apparentSize | 3.9 × 3.2 arcminutes ⓘ |
| belongsToConstellationFamily | Ursa Major family NERFINISHED ⓘ |
| catalog | New General Catalogue NERFINISHED ⓘ |
| catalogNumber | NGC 4689 NERFINISHED ⓘ |
| constellation | Coma Berenices NERFINISHED ⓘ |
| declination | +13° 45′ 46″ ⓘ |
| discoveredBy | William Herschel NERFINISHED ⓘ |
| discoveryDate | 1785-04-12 ⓘ |
| distanceFromEarth |
16.5 megaparsecs
ⓘ
54 million light-years ⓘ |
| epoch | J2000 ⓘ |
| galacticEnvironment | cluster galaxy ⓘ |
| galaxyCluster | Virgo Cluster NERFINISHED ⓘ |
| hasDustLanes | yes ⓘ |
| hasGalaxyType | unbarred spiral galaxy ⓘ |
| hasSpiralArms | yes ⓘ |
| hasStarFormation | yes ⓘ |
| hostGalaxyCluster | Virgo Cluster NERFINISHED ⓘ |
| HubbleType | SA(rs)bc ⓘ |
| inclination | moderately inclined to line of sight ⓘ |
| isInHemisphere | Northern celestial hemisphere ⓘ |
| isInSupercluster | Virgo Supercluster NERFINISHED ⓘ |
| isNonBarred | yes ⓘ |
| locatedIn |
Coma Berenices
NERFINISHED
ⓘ
Virgo Cluster NERFINISHED ⓘ |
| memberOf | Virgo Cluster NERFINISHED ⓘ |
| morphologicalType | SA(rs)bc ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ |
| radialVelocity | 1008 km/s ⓘ |
| redshift | 0.003366 ⓘ |
| rightAscension | 12h 47m 45s ⓘ |
| 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 4689 Description of subject: NGC 4689 is a spiral galaxy located in the constellation Coma Berenices 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.