Alpha Crucis

E145921

B-type main-sequence star B-type star astronomical object multiple star system star system stellar system

Alpha Crucis is the brightest star in the Southern Cross constellation and one of the key stars depicted on the Australian national flag.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (6)

Label	Occurrences
Acrux	10
Alpha Crucis canonical	4
α Crucis	2
Alpha Crucis A	1
Alpha Crucis B	1
Alpha Crucis C	1

Statements (44)

Predicate	Object
instanceOf	B-type main-sequence star ⓘ B-type main-sequence star ⓘ B-type star ⓘ astronomical object ⓘ multiple star system ⓘ star system ⓘ stellar system ⓘ
alsoKnownAs	Alpha Crucis ⓘ surface form: Acrux Alpha Crucis ⓘ surface form: α Crucis
apparentMagnitudeV	0.76 ⓘ
belongsTo	Milky Way ⓘ
culturalSignificanceIn	Australia ⓘ Brazil ⓘ New Zealand ⓘ
declination	−63° 05′ 56″ ⓘ
distanceFromEarth_ly	approximately 320 light-years ⓘ
distanceFromEarth_pc	approximately 98 parsecs ⓘ
hasBayerDesignation	Alpha Crucis self-linksurface differs ⓘ surface form: α Crucis
hasColorIndexBminusV	about −0.24 ⓘ
hasComponent	Alpha Crucis self-linksurface differs ⓘ surface form: Alpha Crucis A Alpha Crucis self-linksurface differs ⓘ surface form: Alpha Crucis B Alpha Crucis self-linksurface differs ⓘ surface form: Alpha Crucis C
hasConstellationAbbreviation	Cru ⓘ
hasFlamsteedDesignation	HR 4729 ⓘ
hasHDDesignation	HD 108248 ⓘ
hasHIPDesignation	HIP 60718 ⓘ
hasTraditionalName	Alpha Crucis self-linksurface differs ⓘ surface form: Acrux
isBrightestStarOf	Crux ⓘ
isDepictedOn	Australian national flag ⓘ surface form: Flag of Australia flag of Brazil ⓘ surface form: Flag of Brazil Flag of Mercosur ⓘ Flag of New Zealand ⓘ flag of Papua New Guinea ⓘ surface form: Flag of Papua New Guinea flag of Samoa ⓘ surface form: Flag of Samoa
isKeyStarOf	Southern Cross constellation ⓘ
isNavigationStar	true ⓘ
isPartOfAsterism	Southern Cross ⓘ
isSouthernmostStarOf	Southern Cross ⓘ
locatedIn	Southern celestial hemisphere ⓘ
locatedInConstellation	Crux ⓘ
notVisibleFrom	most of Northern Hemisphere ⓘ
rightAscension	12h 26m 35s ⓘ
spectralClass	B0.5IV ⓘ
visibleFromLatitudeSouthOf	about +27 degrees ⓘ

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: Alpha Crucis
Description of subject: Alpha Crucis is the brightest star in the Southern Cross constellation and one of the key stars depicted on the Australian national flag.

Referenced by (19)

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

Australian national flag → hasStar → Alpha Crucis ⓘ

Southern Cross → hasMainStar → Alpha Crucis ⓘ

this entity surface form: Acrux

Southern Cross → hasBrightestStar → Alpha Crucis ⓘ

this entity surface form: Acrux

Southern Cross → hasBayerDesignation → Alpha Crucis ⓘ

Southern Cross constellation → hasMainStar → Alpha Crucis ⓘ

subject surface form: Southern Cross

this entity surface form: Acrux

Southern Cross constellation → hasBrightestStar → Alpha Crucis ⓘ

subject surface form: Southern Cross

this entity surface form: Acrux

Alpha Crucis → alsoKnownAs → Alpha Crucis ⓘ

this entity surface form: Acrux

Alpha Crucis → alsoKnownAs → Alpha Crucis ⓘ

this entity surface form: α Crucis

Alpha Crucis → hasComponent → Alpha Crucis self-linksurface differs ⓘ

this entity surface form: Alpha Crucis A

Alpha Crucis → hasComponent → Alpha Crucis self-linksurface differs ⓘ

this entity surface form: Alpha Crucis B

Alpha Crucis → hasComponent → Alpha Crucis self-linksurface differs ⓘ

this entity surface form: Alpha Crucis C

Alpha Crucis → hasBayerDesignation → Alpha Crucis self-linksurface differs ⓘ

this entity surface form: α Crucis

Alpha Crucis → hasTraditionalName → Alpha Crucis self-linksurface differs ⓘ

this entity surface form: Acrux

Gamma Crucis → formsAsterismWith → Alpha Crucis ⓘ

Crux → containsBrightStar → Alpha Crucis ⓘ

this entity surface form: Acrux

Crux Australis → containsStar → Alpha Crucis ⓘ

this entity surface form: Acrux

Crux Australis → hasBayerDesignation → Alpha Crucis ⓘ

Crux Australis → isBrightestStar → Alpha Crucis ⓘ

this entity surface form: Acrux

Mimosa → formsAsterismWith → Alpha Crucis ⓘ

this entity surface form: Acrux