Delta Cru
E599094
Delta Cru is a bright blue-white giant star in the Southern Cross (Crux) constellation, visible to the naked eye in the southern sky.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Delta Cru canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T6642732 — 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 Cru Context triple: [Delta Crucis, otherName, Delta Cru]
-
A.
Delta Air Lines
Delta Air Lines is a major U.S.-based global airline headquartered in Atlanta, known for its extensive domestic and international route network and membership in the SkyTeam alliance.
-
B.
Allegiant Air
Allegiant Air is a U.S.-based ultra-low-cost airline known for operating scheduled and charter flights primarily between smaller cities and popular leisure destinations.
-
C.
Delta One (Delta Air Lines)
Delta One is Delta Air Lines’ premium international and long-haul business-class cabin, featuring lie-flat seats, enhanced dining, and elevated service.
-
D.
Sunstate Airlines
Sunstate Airlines is an Australian regional airline that operates domestic services under the QantasLink brand.
-
E.
Spirit Airlines
Spirit Airlines is an American ultra-low-cost carrier known for its no-frills service model and extensive network of domestic and Latin American routes.
- 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 Cru Target entity description: Delta Cru is a bright blue-white giant star in the Southern Cross (Crux) constellation, visible to the naked eye in the southern sky.
-
A.
Delta Air Lines
Delta Air Lines is a major U.S.-based global airline headquartered in Atlanta, known for its extensive domestic and international route network and membership in the SkyTeam alliance.
-
B.
Allegiant Air
Allegiant Air is a U.S.-based ultra-low-cost airline known for operating scheduled and charter flights primarily between smaller cities and popular leisure destinations.
-
C.
Delta One (Delta Air Lines)
Delta One is Delta Air Lines’ premium international and long-haul business-class cabin, featuring lie-flat seats, enhanced dining, and elevated service.
-
D.
Sunstate Airlines
Sunstate Airlines is an Australian regional airline that operates domestic services under the QantasLink brand.
-
E.
Spirit Airlines
Spirit Airlines is an American ultra-low-cost carrier known for its no-frills service model and extensive network of domestic and Latin American routes.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
blue-white giant star
ⓘ
star ⓘ |
| alsoKnownAs |
Delta Cru
ⓘ
HD 106490 ⓘ HR 4662 ⓘ δ Crucis ⓘ
linked to:
Delta Crucis
|
| apparentMagnitudeV | about 2.8 ⓘ |
| BayerDesignation |
δ Crucis
ⓘ
linked to:
Delta Crucis
|
| belongsToAsterism | Southern Cross ⓘ |
| color | blue-white ⓘ |
| constellation | Crux ⓘ |
| declination | −58° (approx) ⓘ |
| distanceFromEarth |
about 110 parsecs
ⓘ
about 360 light-years ⓘ |
| effectiveTemperature | about 22000 K ⓘ |
| evolutionaryStage | subgiant or giant ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasCompanion | no well-established stellar companion ⓘ |
| HDNumber | 106490 ⓘ |
| hemisphere | southern sky ⓘ |
| HIPNumber | 59747 ⓘ |
| HRNumber | 4662 ⓘ |
| isBrightStarIn | Crux ⓘ |
| isNavigationStar | true ⓘ |
| locatedIn | Southern Cross ⓘ |
| luminosity | hundreds of times solar luminosity ⓘ |
| luminosityClass | IV ⓘ |
| mass | several times solar mass ⓘ |
| partOf | Milky Way ⓘ |
| rightAscension | 12h 15m (approx) ⓘ |
| spectralType | B2 IV ⓘ |
| usedFor | celestial navigation in Southern Hemisphere ⓘ |
| visibleFrom | Southern Hemisphere ⓘ |
| visibleTo | naked eye ⓘ |
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 Cru Description of subject: Delta Cru is a bright blue-white giant star in the Southern Cross (Crux) constellation, visible to the naked eye in the southern sky.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.