Andromeda XXV
E138887
Andromeda XXV is a faint dwarf satellite galaxy of the Andromeda Galaxy located within the Local Group of galaxies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Andromeda XXV canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T869180 — 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 XXV Context triple: [Local Group, contains, Andromeda XXV]
-
A.
Andromeda XX
Andromeda XX is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy within the Local Group.
-
B.
Andromeda XXIII
Andromeda XXIII is a faint dwarf satellite galaxy of the Andromeda Galaxy located within the Local Group of galaxies.
-
C.
Andromeda XVII
Andromeda XVII is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy located within the Local Group.
-
D.
Andromeda XXII
Andromeda XXII is a faint dwarf satellite galaxy located near the Andromeda Galaxy within the Local Group of galaxies.
-
E.
Andromeda XVIII
Andromeda XVIII is a faint dwarf spheroidal galaxy in the Local Group, located near the Andromeda Galaxy (M31).
- 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 XXV Target entity description: Andromeda XXV is a faint dwarf satellite galaxy of the Andromeda Galaxy located within the Local Group of galaxies.
-
A.
Andromeda XX
Andromeda XX is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy within the Local Group.
-
B.
Andromeda XXIII
Andromeda XXIII is a faint dwarf satellite galaxy of the Andromeda Galaxy located within the Local Group of galaxies.
-
C.
Andromeda XVII
Andromeda XVII is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy located within the Local Group.
-
D.
Andromeda XXII
Andromeda XXII is a faint dwarf satellite galaxy located near the Andromeda Galaxy within the Local Group of galaxies.
-
E.
Andromeda XVIII
Andromeda XVIII is a faint dwarf spheroidal galaxy in the Local Group, located near the Andromeda Galaxy (M31).
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
dwarf spheroidal galaxy ⓘ satellite galaxy ⓘ |
| absoluteMagnitudeV | about −9 ⓘ |
| belongsTo | Andromeda satellite system ⓘ |
| contains | old red giant branch stars ⓘ |
| darkMatterContent | dark-matter-dominated ⓘ |
| discoveredBy | PAndAS survey team ⓘ |
| discoveryMethod |
Pan-Andromeda Archaeological Survey (PAndAS)
ⓘ
linked to:
Pan-Andromeda Archaeological Survey
|
| discoveryYear | 2011 ⓘ |
| distanceFrom | Andromeda Galaxy ~90 kiloparsecs (projected) ⓘ |
| distanceFromEarth |
approximately 2.4 million light-years
ⓘ
approximately 750 kiloparsecs ⓘ |
| environment | halo of the Andromeda Galaxy ⓘ |
| galaxyType | dwarf spheroidal ⓘ |
| gasContent | gas-poor ⓘ |
| hasAlternativeName |
And XXV
ⓘ
Andromeda 25 ⓘ |
| isSatelliteOf | Andromeda Galaxy ⓘ |
| locatedIn |
Local Group
ⓘ
constellation Andromeda ⓘ |
| luminosity | about 10^5 solar luminosities ⓘ |
| memberOf | Local Group ⓘ |
| metallicity | low metallicity ⓘ |
| morphologicalType | dSph ⓘ |
| observedWith | Canada–France–Hawaii Telescope ⓘ |
| redshift | approximately 0 (Local Group object) ⓘ |
| starFormationActivity | no current star formation detected ⓘ |
| stellarPopulation | predominantly old stars ⓘ |
| surfaceBrightness | very low ⓘ |
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 XXV Description of subject: Andromeda XXV is a faint dwarf satellite galaxy of the Andromeda Galaxy located within the Local Group of galaxies.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.