Alpha Coronae Australis
E451672
Alpha Coronae Australis is the brightest star in the southern constellation Corona Australis, visible to the naked eye in the night sky.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Alpha Coronae Australis canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4531804 — 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: Alpha Coronae Australis Context triple: [Corona Australis, contains, Alpha Coronae Australis]
-
A.
Delta Crucis
Delta Crucis is a bright blue-white giant star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
B.
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.
-
C.
TY Coronae Australis
TY Coronae Australis is a young variable star in the Corona Australis constellation, associated with a nearby star-forming region and circumstellar material.
-
D.
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.
-
E.
Epsilon Crucis
Epsilon Crucis is a bright star in the Southern Cross constellation, prominently featured on the Australian national flag.
- 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: Alpha Coronae Australis Target entity description: Alpha Coronae Australis is the brightest star in the southern constellation Corona Australis, visible to the naked eye in the night sky.
-
A.
Delta Crucis
Delta Crucis is a bright blue-white giant star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
B.
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.
-
C.
TY Coronae Australis
TY Coronae Australis is a young variable star in the Corona Australis constellation, associated with a nearby star-forming region and circumstellar material.
-
D.
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.
-
E.
Epsilon Crucis
Epsilon Crucis is a bright star in the Southern Cross constellation, prominently featured on the Australian national flag.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
star ⓘ |
| absoluteMagnitudeV | +0.77 ⓘ |
| age | about 300 million years ⓘ |
| apparentMagnitudeB | 2.88 ⓘ |
| apparentMagnitudeV | 2.82 ⓘ |
| bayerDesignation | α Coronae Australis NERFINISHED ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| celestialHemisphere | southern celestial hemisphere ⓘ |
| colorIndexBminusV | +0.06 ⓘ |
| constellation | Corona Australis NERFINISHED ⓘ |
| declination | −37° 03′ 43″ ⓘ |
| distanceFromEarth |
about 102 light-years
ⓘ
about 31 parsecs ⓘ |
| effectiveTemperature | about 9000 K ⓘ |
| equatorialCoordinateSystem | ICRS NERFINISHED ⓘ |
| flamsteedDesignation | 9 Coronae Australis NERFINISHED ⓘ |
| galacticLatitude | −13.63° ⓘ |
| galacticLongitude | 0.74° ⓘ |
| hasExoplanetsDetected | false ⓘ |
| hasPhotometricBand | V band ⓘ |
| hdDesignation | HD 165135 NERFINISHED ⓘ |
| hipparcosDesignation | HIP 88635 NERFINISHED ⓘ |
| hrDesignation | HR 6953 NERFINISHED ⓘ |
| isBrightestStarIn | Corona Australis NERFINISHED ⓘ |
| isSingleStar | true ⓘ |
| luminosity | about 25 times solar luminosity ⓘ |
| mass | about 2.3 solar masses ⓘ |
| parallax | 32.04 mas ⓘ |
| properMotionDec | −192 mas/yr ⓘ |
| properMotionRA | +88 mas/yr ⓘ |
| radialVelocity | −10 km/s ⓘ |
| radius | about 2.3 solar radii ⓘ |
| rightAscension | 18h 43m 02s ⓘ |
| rotationalVelocity | about 150 km/s ⓘ |
| simbadIdentifier | alf CrA NERFINISHED ⓘ |
| spectralClass | A2V ⓘ |
| stellarClassification | A-type main-sequence star ⓘ |
| visibility | visible to the 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: Alpha Coronae Australis Description of subject: Alpha Coronae Australis is the brightest star in the southern constellation Corona Australis, visible to the naked eye in the night sky.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.