Delta Capricorni
E247366
A-type star
astronomical object
giant star
main-sequence star
multiple star system
spectroscopic binary star
star system in Capricornus
stellar system
Delta Capricorni is a multiple star system in the constellation Capricornus, notable as its most luminous star and commonly known by the traditional name Deneb Algedi.
All labels observed (9)
| Label | Occurrences |
|---|---|
| Delta Capricorni canonical | 3 |
| Delta Capricorni A | 2 |
| Delta Capricorni B | 2 |
| Delta Capricorni C | 2 |
| Delta Capricorni D | 2 |
| δ Capricorni | 2 |
| 45 Capricorni | 1 |
| Delta Capricorni Aa | 1 |
| Delta Capricorni Ab | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2233493 — 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 Capricorni Context triple: [Capricornus, brightestStarDesignation, Delta Capricorni]
-
A.
Epsilon Crucis
Epsilon Crucis is a bright star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
B.
Delta Cancri
Delta Cancri is a prominent star in the constellation Cancer, known as Asellus Australis and used as a reference point near the Beehive Cluster in the night sky.
-
C.
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.
-
D.
Beta Crucis
Beta Crucis, also known as Mimosa, is a bright blue giant star in the Southern Cross constellation and one of the most prominent navigational stars in the southern sky.
-
E.
Gamma Cancri
Gamma Cancri is a white giant star in the constellation Cancer, visible to the naked eye and commonly used as a reference point in the night sky.
- 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 Capricorni Target entity description: Delta Capricorni is a multiple star system in the constellation Capricornus, notable as its most luminous star and commonly known by the traditional name Deneb Algedi.
-
A.
Epsilon Crucis
Epsilon Crucis is a bright star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
B.
Delta Cancri
Delta Cancri is a prominent star in the constellation Cancer, known as Asellus Australis and used as a reference point near the Beehive Cluster in the night sky.
-
C.
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.
-
D.
Beta Crucis
Beta Crucis, also known as Mimosa, is a bright blue giant star in the Southern Cross constellation and one of the most prominent navigational stars in the southern sky.
-
E.
Gamma Cancri
Gamma Cancri is a white giant star in the constellation Cancer, visible to the naked eye and commonly used as a reference point in the night sky.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
A-type star
ⓘ
astronomical object ⓘ giant star ⓘ main-sequence star ⓘ multiple star system ⓘ spectroscopic binary star ⓘ star system in Capricornus ⓘ stellar system ⓘ |
| hasApparentMagnitudeV | 2.85 ⓘ |
| hasBayerDesignation |
Delta Capricorni
self-linksurface differs
ⓘ
surface form:
δ Capricorni
|
| hasColorIndexB−V | ~+0.27 ⓘ |
| hasComponent |
Delta Capricorni
self-linksurface differs
ⓘ
surface form:
Delta Capricorni A
Delta Capricorni self-linksurface differs ⓘ
surface form:
Delta Capricorni Aa
Delta Capricorni self-linksurface differs ⓘ
surface form:
Delta Capricorni Ab
Delta Capricorni self-linksurface differs ⓘ
surface form:
Delta Capricorni B
Delta Capricorni self-linksurface differs ⓘ
surface form:
Delta Capricorni C
Delta Capricorni self-linksurface differs ⓘ
surface form:
Delta Capricorni D
|
| hasDeclination | −16° 07′ 38″ (approx) ⓘ |
| hasDistanceFromEarth |
~12 parsecs
ⓘ
~39 light-years ⓘ |
| hasEffectiveTemperature | ~7500 K (primary component) ⓘ |
| hasEquatorialCoordinateSystem | J2000 ⓘ |
| hasFlamsteedDesignation |
Delta Capricorni
self-linksurface differs
ⓘ
surface form:
45 Capricorni
|
| hasLuminosity | ~8 times solar luminosity (primary component) ⓘ |
| hasMass | ~2 solar masses (primary component) ⓘ |
| hasMeaning | tail of the goat ⓘ |
| hasOtherDesignation |
HD 207098
ⓘ
HIP 106985 ⓘ HR 8315 ⓘ SAO 164565 ⓘ |
| hasParallax | ~83 mas (approx) ⓘ |
| hasProperMotionInDec | ~−65 mas/yr (approx) ⓘ |
| hasProperMotionInRA | ~+82 mas/yr (approx) ⓘ |
| hasRadialVelocity | ~+6 km/s (approx) ⓘ |
| hasRightAscension | 21h 47m 02s (approx) ⓘ |
| hasSpectralClass | A7III ⓘ |
| hasSpectralType |
A7III
ⓘ
F-type star ⓘ |
| hasTraditionalName | Deneb Algedi ⓘ |
| hasTraditionalNameOrigin | Arabic ⓘ |
| hasVariabilityPeriod | ~1.02 days ⓘ |
| hasVariableType | eclipsing binary ⓘ |
| isBrightestStarIn | Capricornus ⓘ |
| isInConstellation | Capricornus ⓘ |
| isMostLuminousStarOf | Capricornus ⓘ |
| isPartOfAsterism |
constellation Capricornus
ⓘ
surface form:
Capricornus constellation figure
|
| isVisibleToNakedEye | true ⓘ |
| refersTo | Delta Capricorni self-linksurface differs ⓘ |
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 Capricorni Description of subject: Delta Capricorni is a multiple star system in the constellation Capricornus, notable as its most luminous star and commonly known by the traditional name Deneb Algedi.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Capricornus
this entity surface form:
δ Capricorni
this entity surface form:
Delta Capricorni A
this entity surface form:
Delta Capricorni B
this entity surface form:
Delta Capricorni C
this entity surface form:
Delta Capricorni D
this entity surface form:
δ Capricorni
this entity surface form:
45 Capricorni
this entity surface form:
Delta Capricorni A
this entity surface form:
Delta Capricorni B
this entity surface form:
Delta Capricorni C
this entity surface form:
Delta Capricorni D
subject surface form:
Delta Capricorni A
this entity surface form:
Delta Capricorni Aa
subject surface form:
Delta Capricorni A
this entity surface form:
Delta Capricorni Ab
subject surface form:
Deneb Algedi