IC II (second Index Catalogue)
E521867
IC II (second Index Catalogue) is an astronomical catalog published as a supplement to the New General Catalogue, listing additional nebulae, star clusters, and galaxies discovered in the late 19th and early 20th centuries.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IC II (second Index Catalogue) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5469883 — 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 II (second Index Catalogue) Context triple: [IC 1848, includedIn, IC II (second Index Catalogue)]
-
A.
New General Catalogue
The New General Catalogue is a comprehensive 19th-century astronomical catalog of deep-sky objects, including galaxies, nebulae, and star clusters, that remains widely used by astronomers today.
-
B.
Caldwell catalogue
The Caldwell catalogue is an astronomical list of 109 bright star clusters, nebulae, and galaxies compiled by Patrick Moore as a complement to the Messier catalogue, intended for observation by amateur astronomers.
-
C.
Armagh Catalogue of Stars
The Armagh Catalogue of Stars is a 19th-century astronomical star catalog compiled at Armagh Observatory, listing precise positions and related data for thousands of stars.
-
D.
IC 2163
IC 2163 is a disturbed spiral galaxy interacting with the nearby galaxy NGC 2207, located in the constellation Canis Major.
-
E.
IC 2574
IC 2574 is a dwarf irregular galaxy in the constellation Ursa Major, notable for its active star formation and membership in the nearby M81 Group of galaxies.
- 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 II (second Index Catalogue) Target entity description: IC II (second Index Catalogue) is an astronomical catalog published as a supplement to the New General Catalogue, listing additional nebulae, star clusters, and galaxies discovered in the late 19th and early 20th centuries.
-
A.
New General Catalogue
The New General Catalogue is a comprehensive 19th-century astronomical catalog of deep-sky objects, including galaxies, nebulae, and star clusters, that remains widely used by astronomers today.
-
B.
Caldwell catalogue
The Caldwell catalogue is an astronomical list of 109 bright star clusters, nebulae, and galaxies compiled by Patrick Moore as a complement to the Messier catalogue, intended for observation by amateur astronomers.
-
C.
Armagh Catalogue of Stars
The Armagh Catalogue of Stars is a 19th-century astronomical star catalog compiled at Armagh Observatory, listing precise positions and related data for thousands of stars.
-
D.
IC 2163
IC 2163 is a disturbed spiral galaxy interacting with the nearby galaxy NGC 2207, located in the constellation Canis Major.
-
E.
IC 2574
IC 2574 is a dwarf irregular galaxy in the constellation Ursa Major, notable for its active star formation and membership in the nearby M81 Group of galaxies.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical catalogue
ⓘ
supplementary catalogue ⓘ |
| alternativeName | Second Index Catalogue NERFINISHED ⓘ |
| catalogueFamily | NGC/IC system NERFINISHED ⓘ |
| catalogues | additional objects not in the original NGC ⓘ |
| contains |
IC 10
NERFINISHED
ⓘ
IC 1274 NERFINISHED ⓘ IC 1396 NERFINISHED ⓘ IC 1613 NERFINISHED ⓘ IC 1805 NERFINISHED ⓘ IC 1848 NERFINISHED ⓘ IC 2177 NERFINISHED ⓘ IC 2944 NERFINISHED ⓘ IC 342 NERFINISHED ⓘ IC 405 NERFINISHED ⓘ IC 418 NERFINISHED ⓘ IC 434 NERFINISHED ⓘ IC 443 NERFINISHED ⓘ IC 5067 NERFINISHED ⓘ IC 5070 NERFINISHED ⓘ IC 5146 NERFINISHED ⓘ IC 5148 NERFINISHED ⓘ |
| coordinateSystem | equatorial coordinates ⓘ |
| epochOfDiscoveries |
early 20th century
ⓘ
late 19th century ⓘ |
| field | astronomy ⓘ |
| follows | IC I NERFINISHED ⓘ |
| hasDataOn |
positions of objects
ⓘ
visual descriptions of objects ⓘ |
| isRelatedTo |
Index Catalogue (IC I and IC II)
NERFINISHED
ⓘ
New General Catalogue NERFINISHED ⓘ |
| isSupplementTo |
NGC (New General Catalogue of Nebulae and Clusters of Stars)
NERFINISHED
ⓘ
New General Catalogue NERFINISHED ⓘ |
| isUsedBy |
amateur astronomers
ⓘ
professional astronomers ⓘ |
| isUsedFor |
historical research on discoveries of nebulae and clusters
ⓘ
identification of deep-sky objects ⓘ |
| language | English ⓘ |
| lists |
galaxies
ⓘ
nebulae ⓘ star clusters ⓘ |
| objectType | deep-sky objects ⓘ |
| partOf | Index Catalogue NERFINISHED ⓘ |
| shortName | IC 2 NERFINISHED ⓘ |
| usesDesignationPrefix | IC ⓘ |
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 II (second Index Catalogue) Description of subject: IC II (second Index Catalogue) is an astronomical catalog published as a supplement to the New General Catalogue, listing additional nebulae, star clusters, and galaxies discovered in the late 19th and early 20th centuries.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
IC 1848