HR 4727
E612504
HR 4727 is the Bright Star Catalogue designation for Epsilon Crucis, a prominent red giant star in the Southern Cross constellation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| HR 4727 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6691264 — 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: HR 4727 Context triple: [Epsilon Crucis, catalogIdentifier, HR 4727]
-
A.
HR 4729
HR 4729 is a bright, massive blue star in the Southern Cross constellation, forming part of the multiple-star system Alpha Crucis.
-
B.
HR 4763
HR 4763 is the Bright Star Catalogue (Harvard Revised) designation for Gamma Crucis, a prominent red giant star in the constellation Crux.
-
C.
HR 3572
HR 3572 is a white A-type main-sequence star in the constellation Cancer, better known as Alpha Cancri.
-
D.
HR 3429
HR 3429 is a star in the constellation Cancer, commonly known by its traditional name Asellus Australis.
-
E.
HR 1457
HR 1457 is the Bright Star Catalogue designation for Aldebaran, the prominent orange giant star that forms the eye of the constellation Taurus.
- 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: HR 4727 Target entity description: HR 4727 is the Bright Star Catalogue designation for Epsilon Crucis, a prominent red giant star in the Southern Cross constellation.
-
A.
HR 4729
HR 4729 is a bright, massive blue star in the Southern Cross constellation, forming part of the multiple-star system Alpha Crucis.
-
B.
HR 4763
HR 4763 is the Bright Star Catalogue (Harvard Revised) designation for Gamma Crucis, a prominent red giant star in the constellation Crux.
-
C.
HR 3572
HR 3572 is a white A-type main-sequence star in the constellation Cancer, better known as Alpha Cancri.
-
D.
HR 3429
HR 3429 is a star in the constellation Cancer, commonly known by its traditional name Asellus Australis.
-
E.
HR 1457
HR 1457 is the Bright Star Catalogue designation for Aldebaran, the prominent orange giant star that forms the eye of the constellation Taurus.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf |
Bright Star Catalogue object
ⓘ
red giant star ⓘ star ⓘ |
| alsoKnownAs |
Epsilon Crucis
ⓘ
ε Crucis ⓘ
linked to:
Epsilon Crucis
|
| apparentMagnitudeV | about 3.6 ⓘ |
| belongsToCatalogue |
Bright Star Catalogue
ⓘ
Henry Draper Catalogue ⓘ |
| catalogDesignation | HR 4727 ⓘ |
| celestialHemisphere | southern ⓘ |
| colorIndex | red-orange ⓘ |
| constellation | Crux ⓘ |
| evolutionaryStage | giant branch ⓘ |
| hasBayerDesignation |
Epsilon Crucis
ⓘ
ε Cru ⓘ |
| isCoolStar | true ⓘ |
| isGiantStar | true ⓘ |
| isInConstellation | Southern Cross ⓘ |
| isPartOf |
Epsilon Crucis system
ⓘ
linked to:
Epsilon Crucis
|
| isProminentIn |
Southern Cross asterism
ⓘ
linked to:
Crux constellation
|
| isReferenceStarFor |
constellation Crux
ⓘ
linked to:
Crux constellation
|
| isVisibleToNakedEye | true ⓘ |
| luminosityClass | III ⓘ |
| spectralType | K3III ⓘ |
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: HR 4727 Description of subject: HR 4727 is the Bright Star Catalogue designation for Epsilon Crucis, a prominent red giant star in the Southern Cross constellation.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.