GCl 111
E491712
GCl 111 is a globular star cluster in the constellation Sagittarius, better known as Messier 55 in the Messier catalog of deep-sky objects.
All labels observed (1)
| Label | Occurrences |
|---|---|
| GCl 111 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5075149 — 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 111 Context triple: [Messier 55, otherName, GCl 111]
-
A.
GCl 99
GCl 99, also known as Messier 28, is a bright globular star cluster located in the constellation Sagittarius.
-
B.
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.
-
C.
GCLA
GCLA is the ICAO airport code for La Palma Airport in Spain’s Canary Islands.
-
D.
Gla
Gla is a large fortified Mycenaean archaeological site in Boeotia, Greece, notable for its massive walls and strategic position overlooking the former Lake Kopais.
-
E.
GLA
GLA is the three-letter IATA airport code for Glasgow Airport, the main international airport serving Glasgow, Scotland.
- 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 111 Target entity description: GCl 111 is a globular star cluster in the constellation Sagittarius, better known as Messier 55 in the Messier catalog of deep-sky objects.
-
A.
GCl 99
GCl 99, also known as Messier 28, is a bright globular star cluster located in the constellation Sagittarius.
-
B.
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.
-
C.
GCLA
GCLA is the ICAO airport code for La Palma Airport in Spain’s Canary Islands.
-
D.
Gla
Gla is a large fortified Mycenaean archaeological site in Boeotia, Greece, notable for its massive walls and strategic position overlooking the former Lake Kopais.
-
E.
GLA
GLA is the three-letter IATA airport code for Glasgow Airport, the main international airport serving Glasgow, Scotland.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | globular star cluster ⓘ |
| age | about 12.5 billion years ⓘ |
| alsoKnownAs |
M55
NERFINISHED
ⓘ
Messier 55 NERFINISHED ⓘ NGC 6809 NERFINISHED ⓘ |
| angularSize | 19 arcminutes ⓘ |
| apparentMagnitudeV | 6.3 ⓘ |
| belongsTo | Local Group NERFINISHED ⓘ |
| bestViewingMonth | July ⓘ |
| bestViewingSeason |
northern summer
ⓘ
southern winter ⓘ |
| catalog |
GCl catalogue
ⓘ
Messier catalogue NERFINISHED ⓘ New General Catalogue NERFINISHED ⓘ |
| catalogNumber |
GCl 111
ⓘ
M55 ⓘ NGC 6809 NERFINISHED ⓘ |
| constellation | Sagittarius NERFINISHED ⓘ |
| contains |
RR Lyrae variable stars
ⓘ
old, metal-poor stars ⓘ |
| coreAppearance | loose, not strongly concentrated ⓘ |
| coreConcentration | low ⓘ |
| declination | −30° 58′ ⓘ |
| discoveredBy | Nicolas-Louis de Lacaille NERFINISHED ⓘ |
| discoveryYear | 1752 ⓘ |
| distanceFromEarth |
about 17,600 light-years
ⓘ
about 5.4 kiloparsecs ⓘ |
| galacticComponent | galactic halo ⓘ |
| galacticLatitude | about −23° ⓘ |
| galacticLongitude | about 9° ⓘ |
| hasMessierNumber | 55 ⓘ |
| hasNGCNumber | 6809 ⓘ |
| hemisphereVisibility | best seen from southern hemisphere ⓘ |
| hostGalaxy | Milky Way NERFINISHED ⓘ |
| locatedIn | Milky Way ⓘ |
| locatedNear | galactic center direction ⓘ |
| metallicity | low ⓘ |
| metallicityFeH | about −1.9 ⓘ |
| observationalAppearance | large, diffuse globular cluster ⓘ |
| observedFrom | Cape of Good Hope NERFINISHED ⓘ |
| OosterhoffType | Oosterhoff type II NERFINISHED ⓘ |
| rightAscension | 19h 40m ⓘ |
| surfaceBrightness | low ⓘ |
| type | Class XI globular cluster (Shapley–Sawyer) ⓘ |
| visibility | visible in binoculars under dark skies ⓘ |
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 111 Description of subject: GCl 111 is a globular star cluster in the constellation Sagittarius, better known as Messier 55 in the Messier catalog of deep-sky objects.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.