47 Tucanae (in its vicinity on the sky)
E114711
47 Tucanae is a bright, massive globular star cluster in the constellation Tucana, appearing close to the Small Magellanic Cloud in the southern sky.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 47 Tucanae (in its vicinity on the sky) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T967499 — 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: 47 Tucanae (in its vicinity on the sky) Context triple: [Small Magellanic Cloud, contains, 47 Tucanae (in its vicinity on the sky)]
-
A.
Messier 22
Messier 22 is a bright globular star cluster located near the center of the Milky Way, visible in the constellation Sagittarius and notable for being one of the closest and most easily observed clusters of its kind.
-
B.
Messier 24
Messier 24 is a rich star cloud in the constellation Sagittarius, representing a dense, bright section of the Milky Way visible through a gap in interstellar dust.
-
C.
Messier 28
Messier 28 is a dense globular star cluster located in the constellation Sagittarius, composed of hundreds of thousands of ancient stars.
-
D.
Messier 25
Messier 25 is an open star cluster located in the constellation Sagittarius, visible to the naked eye under dark skies.
-
E.
globular star cluster M13
Globular star cluster M13, also known as the Great Hercules Cluster, is a dense, bright spherical collection of hundreds of thousands of ancient stars located in the constellation Hercules and is one of the most prominent globular clusters visible from Earth.
- 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: 47 Tucanae (in its vicinity on the sky) Target entity description: 47 Tucanae is a bright, massive globular star cluster in the constellation Tucana, appearing close to the Small Magellanic Cloud in the southern sky.
-
A.
Messier 22
Messier 22 is a bright globular star cluster located near the center of the Milky Way, visible in the constellation Sagittarius and notable for being one of the closest and most easily observed clusters of its kind.
-
B.
Messier 24
Messier 24 is a rich star cloud in the constellation Sagittarius, representing a dense, bright section of the Milky Way visible through a gap in interstellar dust.
-
C.
Messier 28
Messier 28 is a dense globular star cluster located in the constellation Sagittarius, composed of hundreds of thousands of ancient stars.
-
D.
Messier 25
Messier 25 is an open star cluster located in the constellation Sagittarius, visible to the naked eye under dark skies.
-
E.
globular star cluster M13
Globular star cluster M13, also known as the Great Hercules Cluster, is a dense, bright spherical collection of hundreds of thousands of ancient stars located in the constellation Hercules and is one of the most prominent globular clusters visible from Earth.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
deep-sky object
ⓘ
globular star cluster ⓘ |
| age | about 10–13 billion years ⓘ |
| alsoKnownAs |
47 Tucanae
ⓘ
surface form:
47 Tuc
Caldwell 106 ⓘ 47 Tucanae ⓘ
surface form:
NGC 104
|
| angularSeparationFrom | Small Magellanic Cloud ⓘ |
| apparentMagnitudeV | about 4.0 ⓘ |
| apparentSize | about 30 arcminutes ⓘ |
| appearsNearOnSky | Small Magellanic Cloud ⓘ |
| belongsTo | Milky Way globular cluster system ⓘ |
| bestSeenIn | austral spring ⓘ |
| catalog | New General Catalogue ⓘ |
| catalogNumber |
47 Tucanae
ⓘ
surface form:
NGC 104
|
| celestialHemisphere | southern sky ⓘ |
| contains |
X-ray binaries
ⓘ
blue straggler stars ⓘ horizontal branch stars ⓘ hundreds of thousands of stars ⓘ millisecond pulsars ⓘ red giant stars ⓘ |
| declination | about −72° 05′ ⓘ |
| discoveredBy |
Nicolas de Lacaille
ⓘ
surface form:
Nicolas-Louis de Lacaille
|
| discoveryCentury | 18th century ⓘ |
| distanceFromEarth |
about 13,000 light-years
ⓘ
about 4 kiloparsecs ⓘ |
| hasCore | dense stellar core ⓘ |
| hasStellarPopulation | Population II stars ⓘ |
| hostGalaxy | Milky Way ⓘ |
| isNearOnSky | south celestial pole ⓘ |
| isOneOf |
brightest globular clusters in the sky
ⓘ
most massive globular clusters in the Milky Way ⓘ |
| isPopularTargetFor |
amateur astronomers
ⓘ
professional astronomers ⓘ |
| isUsedFor |
studies of globular cluster dynamics
ⓘ
studies of stellar evolution ⓘ tests of gravitational theories with pulsars ⓘ |
| isVisibleFrom | southern latitudes ⓘ |
| locatedIn |
Milky Way stellar halo
ⓘ
surface form:
Galactic halo
|
| locatedInConstellation | Tucana ⓘ |
| metallicity | relatively metal-rich for a globular cluster ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| rightAscension | about 00h 24m ⓘ |
| surfaceBrightness | high for a globular cluster ⓘ |
| visibilityToNakedEye | visible under dark skies ⓘ |
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: 47 Tucanae (in its vicinity on the sky) Description of subject: 47 Tucanae is a bright, massive globular star cluster in the constellation Tucana, appearing close to the Small Magellanic Cloud in the southern sky.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.