IC 348
E476466
IC 348 is a young, nearby star-forming cluster rich in pre-main-sequence stars, located within the Perseus constellation.
All labels observed (2)
| Label | Occurrences |
|---|---|
| IC 348 canonical | 4 |
| IC 348 region | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4885964 — 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: IC 348 Context triple: [Perseus molecular cloud complex, containsRegion, IC 348]
-
A.
Barnard 33
Barnard 33, commonly known as the Horsehead Nebula, is a small dark nebula in the constellation Orion whose distinctive horse-head shape is silhouetted against the bright emission nebula IC 434.
-
B.
NGC 346
NGC 346 is a prominent star-forming region and open cluster in the Small Magellanic Cloud, known for its young, massive stars and complex nebular structures.
-
C.
IC 4895
IC 4895 is a barred irregular dwarf galaxy in the Local Group, better known as NGC 6822 or Barnard's Galaxy, located in the constellation Sagittarius.
-
D.
NGC 869
NGC 869 is a young, massive open star cluster in the constellation Perseus, best known as one half of the prominent Double Cluster visible to the naked eye.
-
E.
IC 4756
IC 4756 is a large, bright open star cluster in the constellation Serpens, often observed as a rich field of moderately aged stars.
- 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: IC 348 Target entity description: IC 348 is a young, nearby star-forming cluster rich in pre-main-sequence stars, located within the Perseus constellation.
-
A.
Barnard 33
Barnard 33, commonly known as the Horsehead Nebula, is a small dark nebula in the constellation Orion whose distinctive horse-head shape is silhouetted against the bright emission nebula IC 434.
-
B.
NGC 346
NGC 346 is a prominent star-forming region and open cluster in the Small Magellanic Cloud, known for its young, massive stars and complex nebular structures.
-
C.
IC 4895
IC 4895 is a barred irregular dwarf galaxy in the Local Group, better known as NGC 6822 or Barnard's Galaxy, located in the constellation Sagittarius.
-
D.
NGC 869
NGC 869 is a young, massive open star cluster in the constellation Perseus, best known as one half of the prominent Double Cluster visible to the naked eye.
-
E.
IC 4756
IC 4756 is a large, bright open star cluster in the constellation Serpens, often observed as a rich field of moderately aged stars.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
open star cluster
ⓘ
star-forming region ⓘ young stellar cluster ⓘ |
| age |
approximately 2 million years
ⓘ
between 2 and 3 million years ⓘ |
| associatedWith |
Perseus star-forming complex
ⓘ
linked to:
Perseus molecular cloud complex
|
| catalog | Index Catalogue ⓘ |
| catalogNumber | IC 348 ⓘ |
| clusterCore | compact ⓘ |
| constellation | Perseus ⓘ |
| contains |
Herbig Ae/Be stars
ⓘ
T Tauri stars ⓘ brown dwarfs ⓘ pre-main-sequence stars ⓘ protoplanetary disks ⓘ reflection nebula ⓘ |
| declination | +32° ⓘ |
| discovery | 19th century ⓘ |
| distanceFromEarth |
approximately 1000 light-years
ⓘ
approximately 300 parsecs ⓘ |
| environment |
embedded in dust
ⓘ
embedded in molecular gas ⓘ |
| galacticEnvironment |
Perseus arm of the Milky Way
ⓘ
linked to:
Perseus Spiral Arm
|
| galacticLatitude | low galactic latitude ⓘ |
| hasCircumstellarDisks | yes ⓘ |
| hasExtinction | moderate interstellar extinction ⓘ |
| hasInfraredExcessSources | yes ⓘ |
| hasMemberCount | several hundred stars ⓘ |
| hasSubstellarObjects | yes ⓘ |
| hasVariableStars | yes ⓘ |
| hasXRayEmission | yes ⓘ |
| isNearbyStarFormingRegion | yes ⓘ |
| locatedIn |
Milky Way
ⓘ
Perseus molecular cloud ⓘ
linked to:
Perseus molecular cloud complex
|
| near | NGC 1333 ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
infrared wavelengths ⓘ optical wavelengths ⓘ |
| regionType | embedded cluster ⓘ |
| rightAscension | 03h44m ⓘ |
| starFormationActivity | ongoing ⓘ |
| stellarPopulation |
intermediate-mass stars
ⓘ
low-mass stars ⓘ |
| usedForStudyOf |
disk evolution
ⓘ
early stellar evolution ⓘ initial mass function ⓘ |
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: IC 348 Description of subject: IC 348 is a young, nearby star-forming cluster rich in pre-main-sequence stars, located within the Perseus constellation.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: IC 348