PGC 3085
E114712
PGC 3085 is a dwarf irregular galaxy better known as the Small Magellanic Cloud, a nearby satellite of the Milky Way visible from the Southern Hemisphere.
All labels observed (1)
| Label | Occurrences |
|---|---|
| PGC 3085 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T967512 — 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: PGC 3085 Context triple: [Small Magellanic Cloud, catalogCode, PGC 3085]
-
A.
NGC 205
NGC 205 is a dwarf elliptical satellite galaxy of the Andromeda Galaxy, notable for its proximity to the Local Group’s largest spiral and its mixed old and young stellar populations.
-
B.
NGC 598
NGC 598 is the Triangulum Galaxy, a nearby spiral galaxy in the Local Group and one of the closest large galaxies to the Milky Way.
-
C.
NGC 6822
NGC 6822 is a barred irregular dwarf galaxy located in the constellation Sagittarius and is one of the nearest and best-studied galaxies outside the Milky Way.
-
D.
Messier 8
Messier 8, also known as the Lagoon Nebula, is a large, bright emission nebula and active star-forming region visible in the constellation Sagittarius.
-
E.
NGC 1432
NGC 1432 is a reflection nebula in the constellation Taurus that is part of the Pleiades (Seven Sisters) star cluster.
- 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: PGC 3085 Target entity description: PGC 3085 is a dwarf irregular galaxy better known as the Small Magellanic Cloud, a nearby satellite of the Milky Way visible from the Southern Hemisphere.
-
A.
NGC 205
NGC 205 is a dwarf elliptical satellite galaxy of the Andromeda Galaxy, notable for its proximity to the Local Group’s largest spiral and its mixed old and young stellar populations.
-
B.
NGC 598
NGC 598 is the Triangulum Galaxy, a nearby spiral galaxy in the Local Group and one of the closest large galaxies to the Milky Way.
-
C.
NGC 6822
NGC 6822 is a barred irregular dwarf galaxy located in the constellation Sagittarius and is one of the nearest and best-studied galaxies outside the Milky Way.
-
D.
Messier 8
Messier 8, also known as the Lagoon Nebula, is a large, bright emission nebula and active star-forming region visible in the constellation Sagittarius.
-
E.
NGC 1432
NGC 1432 is a reflection nebula in the constellation Taurus that is part of the Pleiades (Seven Sisters) star cluster.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
dwarf irregular galaxy
ⓘ
galaxy ⓘ satellite galaxy ⓘ |
| alsoKnownAs |
SMC
ⓘ
Small Magellanic Cloud ⓘ |
| angularSize | about 5 degrees ⓘ |
| apparentMagnitudeV | about 2.7 ⓘ |
| associatedWith | Magellanic Stream ⓘ |
| belongsTo | southern sky ⓘ |
| catalogDesignation |
ESO 029- G 001
ⓘ
PGC 3085 ⓘ SMC ⓘ Small Magellanic Cloud ⓘ |
| connectedBy | Magellanic Bridge ⓘ |
| contains |
H II regions
ⓘ
old stellar populations ⓘ NGC 346 ⓘ
surface form:
star cluster NGC 346
star-forming regions ⓘ supernova remnant 1E 0102.2-7219 ⓘ young stellar populations ⓘ |
| declination | about −72° 48′ ⓘ |
| discoveredBy | unknown (visible to naked eye since antiquity) ⓘ |
| distanceFromEarth |
about 200000 light-years
ⓘ
about 61 kiloparsecs ⓘ |
| distanceFromMilkyWay |
about 200000 light-years
ⓘ
about 61 kiloparsecs ⓘ |
| galaxyType | dwarf irregular ⓘ |
| gasComponent |
molecular clouds
ⓘ
neutral hydrogen (H I) ⓘ |
| gasRich | true ⓘ |
| has | bar-like central structure ⓘ |
| hasStarFormation | ongoing ⓘ |
| interactsWith |
Large Magellanic Cloud
ⓘ
Milky Way ⓘ |
| locatedIn | constellation Tucana ⓘ |
| mass | on the order of 7×10^9 solar masses ⓘ |
| memberOf |
Magellanic Clouds
ⓘ
surface form:
Magellanic System
|
| metallicity | lower than Milky Way ⓘ |
| morphologicalType | Im ⓘ |
| observableWith | naked eye ⓘ |
| observedBy |
Magellan–Elcano expedition
ⓘ
surface form:
Ferdinand Magellan expedition
|
| partOf | Local Group ⓘ |
| radialVelocity | about 158 km/s ⓘ |
| redshift | about 0.00053 ⓘ |
| rightAscension | about 00h 52m ⓘ |
| satelliteOf | Milky Way ⓘ |
| shape | irregular ⓘ |
| starFormationRate | on the order of 0.05 solar masses per year ⓘ |
| stellarMass | on the order of 4×10^8 solar masses ⓘ |
| visibleFrom | Southern Hemisphere ⓘ |
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: PGC 3085 Description of subject: PGC 3085 is a dwarf irregular galaxy better known as the Small Magellanic Cloud, a nearby satellite of the Milky Way visible from the Southern Hemisphere.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.