M75
E505235
M75 is a densely concentrated globular star cluster in the constellation Sagittarius, cataloged by Charles Messier.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M75 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5240894 — 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: M75 Context triple: [Messier 75, otherName, M75]
-
A.
M-77
M-77 is a state highway in Michigan, United States, running north–south through the eastern Upper Peninsula.
-
B.
M55
M55 is a New York City bus route that provides public transit service connecting to the Whitehall Terminal area in Lower Manhattan.
-
C.
M-50
M-50 is a major orbital motorway around Madrid, Spain, designed to divert traffic from the city center and connect key suburbs and highways.
-
D.
M-5
M-5 is a state highway in southeastern Michigan that serves as a key commuter route connecting Novi and surrounding suburbs to the Detroit metropolitan area.
-
E.
M73
M73 is a short motorway in central Scotland that links the M74 and M80 motorways, serving as part of the main route around the east of Glasgow.
- 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: M75 Target entity description: M75 is a densely concentrated globular star cluster in the constellation Sagittarius, cataloged by Charles Messier.
-
A.
M-77
M-77 is a state highway in Michigan, United States, running north–south through the eastern Upper Peninsula.
-
B.
M55
M55 is a New York City bus route that provides public transit service connecting to the Whitehall Terminal area in Lower Manhattan.
-
C.
M-50
M-50 is a major orbital motorway around Madrid, Spain, designed to divert traffic from the city center and connect key suburbs and highways.
-
D.
M-5
M-5 is a state highway in southeastern Michigan that serves as a key commuter route connecting Novi and surrounding suburbs to the Detroit metropolitan area.
-
E.
M73
M73 is a short motorway in central Scotland that links the M74 and M80 motorways, serving as part of the main route around the east of Glasgow.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf | globular star cluster ⓘ |
| absoluteMagnitudeV | about −8.5 ⓘ |
| addedToMessierCatalogBy | Charles Messier NERFINISHED ⓘ |
| age | ~13 billion years ⓘ |
| alsoKnownAs |
GCl 118
ⓘ
Messier 75 NERFINISHED ⓘ NGC 6864 NERFINISHED ⓘ |
| angularSize | 6.8 arcminutes ⓘ |
| apparentMagnitudeRange | about 8.5–9.0 ⓘ |
| apparentMagnitudeV | 8.6 ⓘ |
| catalogDesignation |
GCl 118
ⓘ
M 75 NERFINISHED ⓘ Messier 75 NERFINISHED ⓘ NGC 6864 NERFINISHED ⓘ |
| catalogedBy | Charles Messier NERFINISHED ⓘ |
| colorIndexBminusV | 0.76 ⓘ |
| concentrationClass | I ⓘ |
| coreConcentration | very high ⓘ |
| declination | −21° 55′ 17″ ⓘ |
| discoveredBy | Pierre Méchain NERFINISHED ⓘ |
| discoveryYear | 1780 ⓘ |
| distanceFromEarth |
~20.7 kiloparsecs
ⓘ
~67,500 light-years ⓘ |
| distanceFromGalacticCenter | ~14.7 kiloparsecs ⓘ |
| galacticLatitude | −25.75° ⓘ |
| galacticLongitude | 8.55° ⓘ |
| hasCoreRadius | ~0.5 arcminutes ⓘ |
| hasHalfLightRadius | ~0.9 arcminutes ⓘ |
| hasMorphologicalType | globular cluster ⓘ |
| hostGalaxy | Milky Way NERFINISHED ⓘ |
| locatedIn |
Milky Way halo
NERFINISHED
ⓘ
constellation Sagittarius NERFINISHED ⓘ |
| locatedInConstellation | Sagittarius NERFINISHED ⓘ |
| metallicity | low ⓘ |
| metallicityFeH | −1.29 ⓘ |
| notes | one of the most centrally concentrated globular clusters known ⓘ |
| radialVelocity | −186 km/s ⓘ |
| rightAscension | 20h 06m 05.1s ⓘ |
| ShapleySawyerConcentrationClass | I ⓘ |
| stellarPopulation | Population II NERFINISHED ⓘ |
| visibility | best seen with medium to large 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: M75 Description of subject: M75 is a densely concentrated globular star cluster in the constellation Sagittarius, cataloged by Charles Messier.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.