Delta Crucis
E150625
Delta Crucis is a bright blue-white giant star in the Southern Cross constellation, prominently featured on the Australian national flag.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Delta Crucis canonical | 17 |
| δ Crucis | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T1286816 — 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: Delta Crucis Context triple: [Australian national flag, hasStar, Delta 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.
Beta Crucis
Beta Crucis, also known as Mimosa, is a bright blue giant star in the Southern Cross constellation and one of the most prominent navigational stars in the southern sky.
-
D.
Cygnis Insignis
Cygnis Insignis is the Latin motto of Western Australia, traditionally translated as “Distinguished by the Swan” and referring to the state’s emblematic black swan.
-
E.
Canopus
Canopus was an ancient Egyptian coastal city near modern-day Alexandria, known as a major religious center and sanctuary dedicated to the goddess Isis.
- 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: Delta Crucis Target entity description: Delta Crucis is a bright blue-white giant star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
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.
Beta Crucis
Beta Crucis, also known as Mimosa, is a bright blue giant star in the Southern Cross constellation and one of the most prominent navigational stars in the southern sky.
-
D.
Cygnis Insignis
Cygnis Insignis is the Latin motto of Western Australia, traditionally translated as “Distinguished by the Swan” and referring to the state’s emblematic black swan.
-
E.
Canopus
Canopus was an ancient Egyptian coastal city near modern-day Alexandria, known as a major religious center and sanctuary dedicated to the goddess Isis.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
B-type star
ⓘ
blue-white star ⓘ giant star ⓘ star ⓘ |
| age | tens of millions of years ⓘ |
| apparentMagnitudeV | about 2.8 ⓘ |
| associatedWithCulture |
Australian national identity
ⓘ
navigation in Southern Hemisphere ⓘ |
| catalog |
Bright Star Catalogue
ⓘ
Henry Draper Catalogue ⓘ Hipparcos Catalogue ⓘ |
| colorIndex | blue-white ⓘ |
| componentOf | asterism used to locate south celestial pole ⓘ |
| constellation | Crux ⓘ |
| declination | about −58° 45′ ⓘ |
| distanceFromEarth |
about 106 parsecs
ⓘ
about 345 light-years ⓘ |
| effectiveTemperature | about 22,000 K ⓘ |
| evolutionaryStage | subgiant to giant phase ⓘ |
| featuredOnFlag |
Flag of Australia
ⓘ
linked to:
Australian national flag
Flag of Brazil (as part of Crux) ⓘ
linked to:
flag of Brazil
Flag of New Zealand ⓘ Flag of Papua New Guinea ⓘ
linked to:
flag of Papua New Guinea
Flag of Samoa ⓘ
linked to:
flag of Samoa
|
| galacticPopulation | thin disk ⓘ |
| hasNoKnownPlanets | true ⓘ |
| isBrightestRankInCrux | third-brightest star in Crux ⓘ |
| locatedIn | Southern celestial hemisphere ⓘ |
| luminosity | about 10,000 times solar luminosity ⓘ |
| mass | about 8 solar masses ⓘ |
| notVisibleFrom | most of Northern Hemisphere ⓘ |
| otherName |
Delta Cru
ⓘ
HD 106490 ⓘ HIP 59747 ⓘ HR 4656 ⓘ δ Crucis ⓘ
linked to:
Delta Crucis
|
| parallax | about 9.4 mas ⓘ |
| partOfAsterism | Southern Cross ⓘ |
| properMotionDec | about −11 mas/yr ⓘ |
| properMotionRA | about −36 mas/yr ⓘ |
| radius | about 8 solar radii ⓘ |
| rightAscension | about 12h 15m ⓘ |
| spectralType | B2IV ⓘ |
| variableStarType | Beta Cephei-type candidate ⓘ |
| visibleFrom | Southern Hemisphere ⓘ |
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: Delta Crucis Description of subject: Delta Crucis is a bright blue-white giant star in the Southern Cross constellation, prominently featured on the Australian national flag.
Referenced by (23)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Southern Cross constellation
linked to: Delta Crucis
linked to: Delta Crucis
linked to: Delta Crucis
linked to: Delta Crucis