Andromeda XXVIII
E143460
Andromeda XXVIII is a faint dwarf satellite galaxy located near the Andromeda Galaxy within the Local Group.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Andromeda XXVIII canonical | 8 |
How this entity was disambiguated
This entity first appeared as the object of triple T869183 — 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 XXVIII Context triple: [Local Group, contains, Andromeda XXVIII]
-
A.
Andromeda XXVII
Andromeda XXVII is a faint dwarf satellite galaxy of the Andromeda Galaxy located within the Local Group.
-
B.
Andromeda XXV
Andromeda XXV is a faint dwarf satellite galaxy of the Andromeda Galaxy located within the Local Group of galaxies.
-
C.
Andromeda XXIII
Andromeda XXIII is a faint dwarf satellite galaxy of the Andromeda Galaxy located within the Local Group of galaxies.
-
D.
Andromeda XXVI
Andromeda XXVI is a faint dwarf satellite galaxy of the Andromeda Galaxy located 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 XXVIII Target entity description: Andromeda XXVIII is a faint dwarf satellite galaxy located near the Andromeda Galaxy within the Local Group.
-
A.
Andromeda XXVII
Andromeda XXVII is a faint dwarf satellite galaxy of the Andromeda Galaxy located within the Local Group.
-
B.
Andromeda XXV
Andromeda XXV is a faint dwarf satellite galaxy of the Andromeda Galaxy located within the Local Group of galaxies.
-
C.
Andromeda XXIII
Andromeda XXIII is a faint dwarf satellite galaxy of the Andromeda Galaxy located within the Local Group of galaxies.
-
D.
Andromeda XXVI
Andromeda XXVI is a faint dwarf satellite galaxy of the Andromeda Galaxy located 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 galaxy ⓘ satellite galaxy ⓘ |
| absoluteMagnitudeV | about −8.5 ⓘ |
| apparentMagnitudeV | about 16.0 ⓘ |
| belongsTo | halo of the Andromeda Galaxy ⓘ |
| clusterMembership | satellite system of M31 ⓘ |
| darkMatterContent | dark-matter-dominated ⓘ |
| discoveredBy |
Pan-STARRS 1 survey team
ⓘ
linked to:
Pan-STARRS survey
|
| discoveryMethod | wide-field imaging survey ⓘ |
| discoveryYear | 2012 ⓘ |
| distanceFromAndromedaGalaxy | approximately 380 kiloparsecs ⓘ |
| distanceFromEarth |
approximately 2.1 million light-years
ⓘ
approximately 650 kiloparsecs ⓘ |
| environment | outer halo of M31 ⓘ |
| galaxyType | dwarf spheroidal galaxy ⓘ |
| gasContent | gas-poor ⓘ |
| halfLightRadius | about 210 parsecs ⓘ |
| hostGalaxy |
M31
ⓘ
linked to:
Andromeda Galaxy
|
| locatedIn | constellation Andromeda ⓘ |
| luminosity | about 2×10^5 times the luminosity of the Sun ⓘ |
| memberOf | Local Group ⓘ |
| metallicity | low metallicity ⓘ |
| observedIn | optical wavelengths ⓘ |
| otherName | And XXVIII ⓘ |
| redshift | approximately 0 ⓘ |
| satelliteOf | Andromeda Galaxy ⓘ |
| starFormationActivity | no recent star formation detected ⓘ |
| stellarPopulation | old, metal-poor stars ⓘ |
| surfaceBrightness | very low surface brightness ⓘ |
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 XXVIII Description of subject: Andromeda XXVIII is a faint dwarf satellite galaxy located near the Andromeda Galaxy within the Local Group.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.