Kappa Crucis
E776529
Kappa Crucis is a prominent blue giant star in the southern constellation Crux, notable as a key member of the Jewel Box open star cluster.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Kappa Crucis canonical | 2 |
| κ Crucis | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8717192 — 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: Kappa Crucis Context triple: [Jewel Box cluster, containsBrightStar, Kappa Crucis]
-
A.
Gamma Crucis
Gamma Crucis is a bright red giant star in the constellation Crux, prominently visible as one of the main stars forming the Southern Cross.
-
B.
Alpha Crucis
Alpha Crucis is the brightest star in the Southern Cross constellation and one of the key stars depicted on the Australian national flag.
-
C.
Epsilon Crucis
Epsilon Crucis is a bright star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
D.
Delta Crucis
Delta Crucis is a bright blue-white giant star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
E.
Kappa Orionis
Kappa Orionis, traditionally known as Saiph, is a bright blue supergiant star marking one of the knees of the constellation Orion.
- 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: Kappa Crucis Target entity description: Kappa Crucis is a prominent blue giant star in the southern constellation Crux, notable as a key member of the Jewel Box open star cluster.
-
A.
Gamma Crucis
Gamma Crucis is a bright red giant star in the constellation Crux, prominently visible as one of the main stars forming the Southern Cross.
-
B.
Alpha Crucis
Alpha Crucis is the brightest star in the Southern Cross constellation and one of the key stars depicted on the Australian national flag.
-
C.
Epsilon Crucis
Epsilon Crucis is a bright star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
D.
Delta Crucis
Delta Crucis is a bright blue-white giant star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
E.
Kappa Orionis
Kappa Orionis, traditionally known as Saiph, is a bright blue supergiant star marking one of the knees of the constellation Orion.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
blue giant star
ⓘ
star ⓘ |
| apparentMagnitudeV | approximately 5.9 ⓘ |
| belongsToAsterism | Southern Cross region ⓘ |
| clusterType | open star cluster ⓘ |
| colorIndexBminusV | approximately −0.16 ⓘ |
| constellation | Crux ⓘ |
| declination | −60° 22′ ⓘ |
| distanceFromEarth |
approximately 2000 parsecs
ⓘ
approximately 6400 light-years ⓘ |
| evolutionaryStage | giant phase ⓘ |
| hasAlternativeName |
HD 111973
ⓘ
HIP 62894 ⓘ HR 4899 ⓘ Kappa Cru ⓘ κ Crucis ⓘ
linked to:
Kappa Crucis
|
| hemisphere | southern celestial hemisphere ⓘ |
| locatedIn |
Carina–Sagittarius Arm
ⓘ
linked to:
Sagittarius Arm
Milky Way ⓘ |
| luminosityClass | III ⓘ |
| memberOf |
Jewel Box
ⓘ
NGC 4755 ⓘ |
| notableFor |
being a key member of the Jewel Box cluster
ⓘ
blue color ⓘ |
| observedIn | optical wavelength ⓘ |
| partOf |
Crux star field
ⓘ
linked to:
Crux constellation
|
| rightAscension | 12h 53m ⓘ |
| spectralClass | B3 ⓘ |
| variableStar | no ⓘ |
| visibleFrom | southern latitudes ⓘ |
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: Kappa Crucis Description of subject: Kappa Crucis is a prominent blue giant star in the southern constellation Crux, notable as a key member of the Jewel Box open star cluster.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Kappa Crucis