Delta Crucis

E150625

B-type star blue-white star giant star star

Delta Crucis is a bright blue-white giant star in the Southern Cross constellation, prominently featured on the Australian national flag.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (2)

Label	Occurrences
Delta Crucis canonical	9
δ Crucis	1

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	Australian national flag ⓘ surface form: Flag of Australia flag of Brazil ⓘ surface form: Flag of Brazil (as part of Crux) Flag of New Zealand ⓘ flag of Papua New Guinea ⓘ surface form: Flag of Papua New Guinea flag of Samoa ⓘ surface form: 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 ⓘ Delta Crucis ⓘ surface form: δ 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 (10)

Full triples — surface form annotated when it differs from this entity's canonical label.

Australian national flag → hasStar → Delta Crucis ⓘ

Southern Cross → hasMainStar → Delta Crucis ⓘ

Southern Cross → hasBayerDesignation → Delta Crucis ⓘ

Southern Cross constellation → hasMainStar → Delta Crucis ⓘ

subject surface form: Southern Cross

Gamma Crucis → formsAsterismWith → Delta Crucis ⓘ

Delta Crucis → otherName → Delta Crucis ⓘ

this entity surface form: δ Crucis

Crux → containsBrightStar → Delta Crucis ⓘ

Crux Australis → containsStar → Delta Crucis ⓘ

Crux Australis → hasBayerDesignation → Delta Crucis ⓘ

Mimosa → formsAsterismWith → Delta Crucis ⓘ