NGC 3766
E491906
NGC 3766 is a young open star cluster notable for its rich population of hot, massive stars and unusual variable stars, located in the southern sky.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 3766 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4943591 — 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: NGC 3766 Context triple: [Centaurus constellation region, contains, NGC 3766]
-
A.
NGC 3372
NGC 3372 is a massive, bright star-forming nebula in the Carina constellation, famous for housing the unstable supergiant star Eta Carinae and extensive regions of ionized gas and dust.
-
B.
NGC 2976
NGC 2976 is a nearby dwarf spiral galaxy in the constellation Ursa Major and a member of the M81 Group of galaxies.
-
C.
NGC 3077
NGC 3077 is a small, irregular dwarf galaxy in the constellation Ursa Major that is gravitationally interacting with the nearby spiral galaxy M81.
-
D.
NGC 6205
NGC 6205 is a bright, densely packed globular star cluster in the constellation Hercules, commonly known as the Great Hercules Cluster (M13).
-
E.
NGC 1566
NGC 1566 is a bright, nearby spiral galaxy and active galactic nucleus often called the "Spanish Dancer Galaxy," located in the constellation Dorado.
- 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: NGC 3766 Target entity description: NGC 3766 is a young open star cluster notable for its rich population of hot, massive stars and unusual variable stars, located in the southern sky.
-
A.
NGC 3372
NGC 3372 is a massive, bright star-forming nebula in the Carina constellation, famous for housing the unstable supergiant star Eta Carinae and extensive regions of ionized gas and dust.
-
B.
NGC 2976
NGC 2976 is a nearby dwarf spiral galaxy in the constellation Ursa Major and a member of the M81 Group of galaxies.
-
C.
NGC 3077
NGC 3077 is a small, irregular dwarf galaxy in the constellation Ursa Major that is gravitationally interacting with the nearby spiral galaxy M81.
-
D.
NGC 6205
NGC 6205 is a bright, densely packed globular star cluster in the constellation Hercules, commonly known as the Great Hercules Cluster (M13).
-
E.
NGC 1566
NGC 1566 is a bright, nearby spiral galaxy and active galactic nucleus often called the "Spanish Dancer Galaxy," located in the constellation Dorado.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
open star cluster
ⓘ
young star cluster ⓘ |
| age |
about 14 million years
ⓘ
on the order of 10–30 million years ⓘ |
| angularSize | about 12 arcminutes ⓘ |
| apparentMagnitudeV | about 5.3 ⓘ |
| bestSeenIn |
binoculars
ⓘ
small telescopes ⓘ |
| catalog | New General Catalogue ⓘ |
| clusterMass | several hundred solar masses ⓘ |
| clusterType | loose open cluster ⓘ |
| contains |
B-type stars
ⓘ
Be stars ⓘ early-type main-sequence stars ⓘ hot stars ⓘ main-sequence stars ⓘ massive stars ⓘ pre-main-sequence stars ⓘ unusual variable stars ⓘ variable stars ⓘ |
| declination | −61° 36′ ⓘ |
| discoveredBy |
Nicolas-Louis de Lacaille
ⓘ
linked to:
Nicolas de Lacaille
|
| discoveryYear | 1752 ⓘ |
| distanceFromEarth |
approximately 1,700 parsecs
ⓘ
approximately 5,500 light-years ⓘ |
| environment | Galactic disk ⓘ |
| estimatedStarCount | several hundred member stars ⓘ |
| evolutionaryStatus | young, still forming massive stars ⓘ |
| galacticLatitude | approximately +3° ⓘ |
| galacticLongitude | approximately 294° ⓘ |
| hasAlternativeName |
Caldwell 97
ⓘ
Melotte 102 ⓘ |
| hasResearchInterest |
pulsating variable stars
ⓘ
stellar evolution of massive stars ⓘ stellar variability ⓘ |
| locatedIn | Milky Way ⓘ |
| locatedInConstellation | Centaurus ⓘ |
| locatedInHemisphere | southern celestial hemisphere ⓘ |
| notableFor |
rich population of hot, massive stars
ⓘ
unusual class of variable stars with periods between 0.1 and 0.7 days ⓘ |
| observedFrom | southern sky ⓘ |
| rightAscension | 11h 36m ⓘ |
| stellarPopulation | rich in hot, massive stars ⓘ |
| variableStarPopulation |
includes eclipsing binaries
ⓘ
includes slowly pulsating B-type candidates ⓘ includes δ Scuti-like candidates ⓘ |
| visibility | naked-eye object 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: NGC 3766 Description of subject: NGC 3766 is a young open star cluster notable for its rich population of hot, massive stars and unusual variable stars, located in the southern sky.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.