Andromeda 20
E559338
Andromeda 20 is a globular star cluster located in the Andromeda Galaxy (M31), cataloged as Andromeda XX.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Andromeda 20 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5966624 — 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: Andromeda 20 Context triple: [Andromeda XX, hasAlternativeName, Andromeda 20]
-
A.
Andromeda 19
Andromeda 19 is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy (M31) located in the Local Group.
-
B.
Andromeda 10
Andromeda 10 is a dwarf spheroidal satellite galaxy of the Andromeda Galaxy (M31) located in the Local Group.
-
C.
Andromeda 16
Andromeda 16 is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy (M31) located in the Local Group.
-
D.
Andromeda 14
Andromeda 14 is a faint dwarf spheroidal galaxy that is a satellite of the Andromeda Galaxy (M31) in the Local Group.
-
E.
Andromeda 17
Andromeda 17 is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy located in the Local Group.
- 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: Andromeda 20 Target entity description: Andromeda 20 is a globular star cluster located in the Andromeda Galaxy (M31), cataloged as Andromeda XX.
-
A.
Andromeda 19
Andromeda 19 is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy (M31) located in the Local Group.
-
B.
Andromeda 10
Andromeda 10 is a dwarf spheroidal satellite galaxy of the Andromeda Galaxy (M31) located in the Local Group.
-
C.
Andromeda 16
Andromeda 16 is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy (M31) located in the Local Group.
-
D.
Andromeda 14
Andromeda 14 is a faint dwarf spheroidal galaxy that is a satellite of the Andromeda Galaxy (M31) in the Local Group.
-
E.
Andromeda 17
Andromeda 17 is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy located in the Local Group.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
globular star cluster
ⓘ
satellite of galaxy ⓘ |
| alternateName |
Andromeda 20 (Andromeda XX)
ⓘ
linked to:
Andromeda XX
Andromeda XX ⓘ |
| belongsTo |
halo of the Andromeda Galaxy
ⓘ
linked to:
Andromeda Galaxy
|
| celestialBodyType | globular cluster ⓘ |
| constellation | Andromeda ⓘ |
| coordinateSystem | equatorial coordinates (RA/Dec) ⓘ |
| discoveredIn | 21st century ⓘ |
| distanceFromEarth |
approximately 2.5 million light-years
ⓘ
approximately 780 kiloparsecs ⓘ |
| galacticEnvironment | outer regions of the Andromeda Galaxy ⓘ |
| galaxyTypeOfHost | spiral galaxy ⓘ |
| gravitationallyBoundTo | Andromeda Galaxy ⓘ |
| hasRedshift | similar to systemic velocity of M31 ⓘ |
| hostGalaxy | Andromeda Galaxy ⓘ |
| isNot |
dwarf galaxy
ⓘ
open star cluster ⓘ |
| locatedIn |
Andromeda Galaxy
ⓘ
M31 ⓘ
linked to:
Andromeda Galaxy
|
| memberOf | Local Group ⓘ |
| metallicity | low to moderate metallicity (typical of globular clusters) ⓘ |
| observedIn |
near-infrared wavelengths
ⓘ
optical wavelengths ⓘ |
| partOf | globular cluster system of the Andromeda Galaxy ⓘ |
| stellarPopulation | old stars ⓘ |
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: Andromeda 20 Description of subject: Andromeda 20 is a globular star cluster located in the Andromeda Galaxy (M31), cataloged as Andromeda XX.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.