NGC 4387
E525969
NGC 4387 is a dwarf elliptical galaxy located in the constellation Virgo and is a member of the Virgo Cluster of galaxies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 4387 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5410468 — 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 4387 Context triple: [Virgo Cluster, containsGalaxy, NGC 4387]
-
A.
NGC 4388
NGC 4388 is an edge-on spiral galaxy with an active galactic nucleus located in the Virgo Cluster, notable for its strong emission lines and interaction with the cluster environment.
-
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 4548
NGC 4548 is a barred spiral galaxy located in the constellation Coma Berenices and is a member of the Virgo Cluster.
-
D.
NGC 4609
NGC 4609 is an open star cluster located in the southern constellation Centaurus, notable for its relatively young stellar population.
-
E.
NGC 4406
NGC 4406, also known as Messier 86, is a giant elliptical galaxy in the constellation Virgo and one of the prominent members 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 4387 Target entity description: NGC 4387 is a dwarf elliptical galaxy located in the constellation Virgo and is a member of the Virgo Cluster of galaxies.
-
A.
NGC 4388
NGC 4388 is an edge-on spiral galaxy with an active galactic nucleus located in the Virgo Cluster, notable for its strong emission lines and interaction with the cluster environment.
-
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 4548
NGC 4548 is a barred spiral galaxy located in the constellation Coma Berenices and is a member of the Virgo Cluster.
-
D.
NGC 4609
NGC 4609 is an open star cluster located in the southern constellation Centaurus, notable for its relatively young stellar population.
-
E.
NGC 4406
NGC 4406, also known as Messier 86, is a giant elliptical galaxy in the constellation Virgo and one of the prominent members of the Virgo Cluster.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
elliptical galaxy
ⓘ
galaxy ⓘ |
| angularSize | 2.6′ × 1.8′ ⓘ |
| apparentMagnitudeV | 12.1 ⓘ |
| apparentShape | elongated ⓘ |
| catalog | New General Catalogue NERFINISHED ⓘ |
| celestialHemisphere | northern sky ⓘ |
| constellation | Virgo NERFINISHED ⓘ |
| coordinateSystemReference | ICRS NERFINISHED ⓘ |
| declination | +12° 48′ 38″ ⓘ |
| discoveredBy | William Herschel NERFINISHED ⓘ |
| discoveryDate | 1784-01-10 ⓘ |
| distance |
about 16 Mpc
ⓘ
about 52 million light-years ⓘ |
| dominantStellarPopulation | old stars ⓘ |
| dustContent | low ⓘ |
| environment | cluster galaxy ⓘ |
| epoch | J2000 ⓘ |
| galacticLatitude | +74.35° ⓘ |
| galacticLongitude | 283.84° ⓘ |
| gasContent | low ⓘ |
| hasBar | no prominent bar ⓘ |
| hasCoordinateSystem | equatorial ⓘ |
| hasImage | Hubble Space Telescope NERFINISHED ⓘ |
| hostCluster | Virgo Cluster NERFINISHED ⓘ |
| isPartOf | Virgo constellation region of the sky ⓘ |
| locatedIn | Virgo Cluster core region NERFINISHED ⓘ |
| memberOf | Virgo Cluster NERFINISHED ⓘ |
| morphologicalType | E5 ⓘ |
| nearbyObject |
M84
NERFINISHED
ⓘ
M86 NERFINISHED ⓘ |
| observedIn |
optical wavelengths
ⓘ
radio wavelengths ⓘ |
| radialVelocity | 980 km/s ⓘ |
| redshift | 0.00327 ⓘ |
| rightAscension | 12h 25m 24.5s ⓘ |
| spectralType | early-type galaxy ⓘ |
| starFormationActivity | low ⓘ |
| surfaceBrightness | high ⓘ |
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 4387 Description of subject: NGC 4387 is a dwarf 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.