M98
E517955
M98 is a spiral galaxy in the constellation Coma Berenices, notable as one of the brighter members of the Virgo Cluster and a target in the Messier catalog.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M98 canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T5410449 — 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: M98 Context triple: [Virgo Cluster, containsGalaxy, M98]
-
A.
M998
The M998 is a basic cargo and troop carrier version of the U.S. military's High Mobility Multipurpose Wheeled Vehicle (HMMWV) family.
-
B.
M90
M90 is a major motorway in Scotland that connects Perth to the Forth Road Bridge, forming a key part of the route between the Scottish Highlands and Edinburgh.
-
C.
M-97
M-97 is a state highway in Michigan that serves as a key transportation route through the Detroit metropolitan area, including Warren.
-
D.
M58
M58 is a motorway in North West England that links the M6 near Wigan to the Liverpool area, serving as a key route for traffic to and from Merseyside.
-
E.
M8
M8, better known as the Lagoon Nebula, is a large, bright emission nebula and active star-forming region located in the constellation Sagittarius.
- 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: M98 Target entity description: M98 is a spiral galaxy in the constellation Coma Berenices, notable as one of the brighter members of the Virgo Cluster and a target in the Messier catalog.
-
A.
M998
The M998 is a basic cargo and troop carrier version of the U.S. military's High Mobility Multipurpose Wheeled Vehicle (HMMWV) family.
-
B.
M90
M90 is a major motorway in Scotland that connects Perth to the Forth Road Bridge, forming a key part of the route between the Scottish Highlands and Edinburgh.
-
C.
M-97
M-97 is a state highway in Michigan that serves as a key transportation route through the Detroit metropolitan area, including Warren.
-
D.
M58
M58 is a motorway in North West England that links the M6 near Wigan to the Liverpool area, serving as a key route for traffic to and from Merseyside.
-
E.
M8
M8, better known as the Lagoon Nebula, is a large, bright emission nebula and active star-forming region located in the constellation Sagittarius.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
Virgo Cluster member
ⓘ
spiral galaxy ⓘ |
| absoluteMagnitudeV | approximately −21 ⓘ |
| apparentMagnitudeB | 10.9 ⓘ |
| apparentMagnitudeV | 10.1 ⓘ |
| apparentSize | 9.8 × 2.8 arcminutes ⓘ |
| belongsToCluster | Virgo Cluster ⓘ |
| catalogName |
M98
ⓘ
Messier 98 ⓘ NGC 4192 ⓘ |
| clusterEnvironment | located on the outskirts of the Virgo Cluster ⓘ |
| constellation | Coma Berenices ⓘ |
| declination | +14° 54′ 01″ ⓘ |
| discoveredBy | Pierre Méchain ⓘ |
| discoveryDate | 1781 ⓘ |
| distanceFromEarth |
approximately 13.5 megaparsecs
ⓘ
approximately 44 million light-years ⓘ |
| galacticLatitude | +74.3° (approximate) ⓘ |
| galacticLongitude | 283.1° (approximate) ⓘ |
| galaxyType | intermediate spiral galaxy ⓘ |
| hasAlternativeName |
PGC 39139
ⓘ
UGC 7231 ⓘ |
| hasBar | weak bar ⓘ |
| inclinationAngle | approximately edge-on ⓘ |
| includedInCatalog |
Messier Catalogue
ⓘ
linked to:
Messier catalogue
New General Catalogue ⓘ Virgo Cluster Catalog ⓘ |
| locatedIn | Virgo Supercluster ⓘ |
| morphologicalType | SAB(s)ab ⓘ |
| notableFeature |
blue star-forming regions
ⓘ
dust lanes along its disk ⓘ |
| observationalWavelength |
infrared
ⓘ
optical ⓘ radio ⓘ |
| orientation | highly inclined to line of sight ⓘ |
| partOf |
Local Supercluster
ⓘ
linked to:
Virgo Supercluster
|
| positionInSky | near the border of Coma Berenices and Virgo ⓘ |
| radialVelocity | −142 km/s ⓘ |
| redshift | −0.00047 ⓘ |
| rightAscension | 12h 13m 48.3s ⓘ |
| spectralCharacteristic | shows evidence of star formation ⓘ |
| supernovaeObserved | SN 1961I ⓘ |
| surfaceBrightness | relatively high for a galaxy of its type ⓘ |
| visibility | visible with medium-sized amateur telescopes ⓘ |
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: M98 Description of subject: M98 is a spiral galaxy in the constellation Coma Berenices, notable as one of the brighter members of the Virgo Cluster and a target in the Messier catalog.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.