Andromeda X
E114011
Andromeda X is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy within the Local Group.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Andromeda X canonical | 10 |
How this entity was disambiguated
This entity first appeared as the object of triple T869165 — 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 X Context triple: [Local Group, contains, Andromeda X]
-
A.
Andromeda I
Andromeda I is a dwarf spheroidal satellite galaxy of the Andromeda Galaxy (M31) located within the Local Group.
-
B.
Andromeda IX
Andromeda IX is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy located within the Local Group.
-
C.
Canis Major Dwarf Galaxy
The Canis Major Dwarf Galaxy is a nearby, faint irregular dwarf galaxy thought to be the closest known satellite galaxy to the Milky Way and currently being tidally disrupted by it.
-
D.
Triangulum Galaxy
The Triangulum Galaxy is a nearby spiral galaxy in the Local Group, notable as one of the closest large galaxies to the Milky Way and a companion to the Andromeda Galaxy.
-
E.
Andromeda Galaxy
The Andromeda Galaxy is the nearest large spiral galaxy to the Milky Way and is on a collision course to eventually merge with it.
- 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 X Target entity description: Andromeda X is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy within the Local Group.
-
A.
Andromeda I
Andromeda I is a dwarf spheroidal satellite galaxy of the Andromeda Galaxy (M31) located within the Local Group.
-
B.
Andromeda IX
Andromeda IX is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy located within the Local Group.
-
C.
Canis Major Dwarf Galaxy
The Canis Major Dwarf Galaxy is a nearby, faint irregular dwarf galaxy thought to be the closest known satellite galaxy to the Milky Way and currently being tidally disrupted by it.
-
D.
Triangulum Galaxy
The Triangulum Galaxy is a nearby spiral galaxy in the Local Group, notable as one of the closest large galaxies to the Milky Way and a companion to the Andromeda Galaxy.
-
E.
Andromeda Galaxy
The Andromeda Galaxy is the nearest large spiral galaxy to the Milky Way and is on a collision course to eventually merge with it.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
dwarf spheroidal galaxy ⓘ galaxy in the Local Group ⓘ satellite galaxy ⓘ |
| absoluteMagnitudeV | about −8.1 ⓘ |
| apparentMagnitudeV | about 16.1 ⓘ |
| belongsTo |
Andromeda subgroup of the Local Group
ⓘ
linked to:
Andromeda subgroup
Local Group dwarf spheroidal population ⓘ |
| contains | mainly old, low-mass stars ⓘ |
| coordinateSystem | equatorial ⓘ |
| darkMatterContent | dark-matter-dominated ⓘ |
| declination | +45° ⓘ |
| discoveredBy |
Alan W. McConnachie
ⓘ
linked to:
A. W. McConnachie
Andrew E. Dolphin ⓘ Annette M. N. Ferguson ⓘ Mike Irwin ⓘ Nial R. Tanvir ⓘ |
| discoveryMethod | analysis of Sloan Digital Sky Survey data ⓘ |
| discoveryYear | 2004 ⓘ |
| distanceFromAndromedaGalaxy | approximately 270000 light-years ⓘ |
| distanceFromEarth | approximately 2.9 million light-years ⓘ |
| environment | halo of the Andromeda Galaxy ⓘ |
| galaxyType | dwarf spheroidal ⓘ |
| gasContent | gas-poor ⓘ |
| hasNo |
significant interstellar gas
ⓘ
significant ongoing star formation ⓘ |
| hostGalaxy | Andromeda Galaxy ⓘ |
| isSatelliteOf | Andromeda Galaxy ⓘ |
| locatedInConstellation | Andromeda ⓘ |
| luminosityClass | low-luminosity dwarf galaxy ⓘ |
| memberOf | Local Group ⓘ |
| metallicity | low ⓘ |
| morphologicalType | dSph ⓘ |
| observedInSurvey | Sloan Digital Sky Survey ⓘ |
| otherName |
And X
ⓘ
Andromeda 10 ⓘ |
| radialVelocityRelativeToSun | about −164 km/s ⓘ |
| redshift | approximately −0.001 ⓘ |
| rightAscension | 00h 30m ⓘ |
| satelliteSystem | Andromeda satellite system ⓘ |
| shape | spheroidal ⓘ |
| starFormationActivity | quiescent ⓘ |
| stellarPopulation | old ⓘ |
| 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 X Description of subject: Andromeda X is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy within the Local Group.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.