GCl 99
E484153
GCl 99, also known as Messier 28, is a bright globular star cluster located in the constellation Sagittarius.
All labels observed (1)
| Label | Occurrences |
|---|---|
| GCl 99 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4983866 — 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: GCl 99 Context triple: [Messier 28, otherName, GCl 99]
-
A.
GCLP
GCLP is the ICAO airport code for Gran Canaria Airport, a major international airport serving the island of Gran Canaria in Spain’s Canary Islands.
-
B.
GCLA
GCLA is the ICAO airport code for La Palma Airport in Spain’s Canary Islands.
-
C.
GS9
GS9 is a Brooklyn-based hip hop collective and crew closely associated with rapper Bobby Shmurda and the New York drill scene.
-
D.
G-14
G-14 was a former coalition of Europe’s most powerful football clubs that acted as a lobbying group before being superseded by the European Club Association.
-
E.
GDL
GDL is the IATA airport code for Miguel Hidalgo y Costilla Guadalajara International Airport, the main international gateway serving Guadalajara, Mexico.
- 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: GCl 99 Target entity description: GCl 99, also known as Messier 28, is a bright globular star cluster located in the constellation Sagittarius.
-
A.
GCLP
GCLP is the ICAO airport code for Gran Canaria Airport, a major international airport serving the island of Gran Canaria in Spain’s Canary Islands.
-
B.
GCLA
GCLA is the ICAO airport code for La Palma Airport in Spain’s Canary Islands.
-
C.
GS9
GS9 is a Brooklyn-based hip hop collective and crew closely associated with rapper Bobby Shmurda and the New York drill scene.
-
D.
G-14
G-14 was a former coalition of Europe’s most powerful football clubs that acted as a lobbying group before being superseded by the European Club Association.
-
E.
GDL
GDL is the IATA airport code for Miguel Hidalgo y Costilla Guadalajara International Airport, the main international gateway serving Guadalajara, Mexico.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
Messier object
ⓘ
globular star cluster ⓘ |
| alsoKnownAs |
M28
ⓘ
Messier 28 NERFINISHED ⓘ NGC 6626 NERFINISHED ⓘ |
| angularSize | about 11 arcminutes ⓘ |
| apparentMagnitudeV | 6.9 ⓘ |
| appearsNear | Galactic center NERFINISHED ⓘ |
| bestSeenInMonth | July ⓘ |
| catalog |
Messier catalogue
NERFINISHED
ⓘ
New General Catalogue NERFINISHED ⓘ |
| constellation | Sagittarius NERFINISHED ⓘ |
| contains |
millisecond pulsars
ⓘ
pulsars ⓘ variable stars ⓘ |
| declination | −24° 52′ ⓘ |
| discoveredBy | Charles Messier NERFINISHED ⓘ |
| discoveryDate | 1764 ⓘ |
| distanceFromEarth |
about 18,000 light-years
ⓘ
about 5,500 parsecs ⓘ |
| GalacticLatitude | about −5.6° ⓘ |
| GalacticLongitude | about 7.8° ⓘ |
| galacticPopulation | Population II NERFINISHED ⓘ |
| hasStellarPopulation | old, metal-poor stars ⓘ |
| hostGalaxy | Milky Way NERFINISHED ⓘ |
| locatedIn | Milky Way ⓘ |
| locatedInRegion | Galactic bulge region NERFINISHED ⓘ |
| metallicity[Fe/H] | about −1.3 ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| partOf | Milky Way globular cluster system NERFINISHED ⓘ |
| rightAscension | 18h 24m ⓘ |
| ShapleySawyerConcentrationClass | IV ⓘ |
| visibleInHemisphere | Southern celestial hemisphere ⓘ |
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: GCl 99 Description of subject: GCl 99, also known as Messier 28, is a bright globular star cluster located in the constellation Sagittarius.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.