Small Magellanic Cloud
E20869
The Small Magellanic Cloud is a nearby dwarf irregular galaxy visible from the Southern Hemisphere and one of the closest galactic neighbors to the Milky Way.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Small Magellanic Cloud canonical | 29 |
| Wing of the Small Magellanic Cloud | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T156307 — 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: Small Magellanic Cloud Context triple: [Milky Way, hasSatellite, Small Magellanic Cloud]
-
A.
Large Magellanic Cloud
The Large Magellanic Cloud is a nearby irregular dwarf galaxy visible from the Southern Hemisphere and notable for its role in studies of galaxy formation, stellar evolution, and the cosmic distance scale.
-
B.
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.
-
C.
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.
-
D.
Milky Way
The Milky Way is the barred spiral galaxy that contains our Solar System and hundreds of billions of other stars.
-
E.
Milky Way center
The Milky Way center is the dense, energetic core of our galaxy, hosting a supermassive black hole surrounded by stars, gas, and dust.
- 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: Small Magellanic Cloud Target entity description: The Small Magellanic Cloud is a nearby dwarf irregular galaxy visible from the Southern Hemisphere and one of the closest galactic neighbors to the Milky Way.
-
A.
Large Magellanic Cloud
The Large Magellanic Cloud is a nearby irregular dwarf galaxy visible from the Southern Hemisphere and notable for its role in studies of galaxy formation, stellar evolution, and the cosmic distance scale.
-
B.
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.
-
C.
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.
-
D.
Milky Way
The Milky Way is the barred spiral galaxy that contains our Solar System and hundreds of billions of other stars.
-
E.
Milky Way center
The Milky Way center is the dense, energetic core of our galaxy, hosting a supermassive black hole surrounded by stars, gas, and dust.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
dwarf irregular galaxy
ⓘ
galaxy ⓘ satellite galaxy ⓘ |
| absoluteMagnitudeV | about −16.8 ⓘ |
| alsoKnownAs |
Nubecula Minor
ⓘ
SMC ⓘ |
| angularSize | about 5 degrees ⓘ |
| apparentMagnitudeV | about 2.7 ⓘ |
| associatedWith | Magellanic Stream ⓘ |
| bestSeenIn | austral spring ⓘ |
| catalogCode |
ESO 029- G 011
ⓘ
PGC 3085 ⓘ |
| connectedBy | Magellanic Bridge ⓘ |
| contains |
47 Tucanae (in its vicinity on the sky)
ⓘ
H II regions ⓘ N66 (nebula) ⓘ NGC 346 ⓘ globular clusters ⓘ old stars ⓘ planetary nebulae ⓘ star clusters ⓘ star-forming regions ⓘ supernova remnants ⓘ young stars ⓘ |
| declination | about −72° 48′ ⓘ |
| discoveredBy | known to ancient southern observers ⓘ |
| distanceFromEarth | about 200000 light-years ⓘ |
| distanceFromLargeMagellanicCloud | about 75000 light-years ⓘ |
| distanceFromMilkyWay | about 200000 light-years ⓘ |
| gasContent | rich in neutral hydrogen ⓘ |
| hasComponent |
bar-like main body
ⓘ
extended wing ⓘ |
| interactsGravitationallyWith | Large Magellanic Cloud ⓘ |
| locatedIn | constellation Tucana ⓘ |
| mass | on the order of 7×10^8 solar masses ⓘ |
| memberOf | Local Group ⓘ |
| metallicity | low compared to Milky Way ⓘ |
| morphologicalType | dwarf irregular ⓘ |
| namedAfter | Ferdinand Magellan ⓘ |
| observedBy |
Magellan–Elcano expedition
ⓘ
surface form:
Ferdinand Magellan's expedition
|
| observedIn |
X-ray wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| orbits | Milky Way ⓘ |
| radialVelocity | about 158 km/s ⓘ |
| redshift | about 0.000527 ⓘ |
| rightAscension | about 00h 52m ⓘ |
| satelliteOf | Milky Way ⓘ |
| starFormationRate | elevated compared to quiescent dwarfs ⓘ |
| usedAs | laboratory for low-metallicity star formation studies ⓘ |
| 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: Small Magellanic Cloud Description of subject: The Small Magellanic Cloud is a nearby dwarf irregular galaxy visible from the Southern Hemisphere and one of the closest galactic neighbors to the Milky Way.
Referenced by (30)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Magellanic Bridge
subject surface form:
Tucana
subject surface form:
Tucana
subject surface form:
N66
subject surface form:
N66
subject surface form:
N66
subject surface form:
47 Tucanae
subject surface form:
47 Tucanae
this entity surface form:
Wing of the Small Magellanic Cloud
subject surface form:
Wolf–Rayet star