Lower Centaurus–Crux
E514326
Lower Centaurus–Crux is a nearby, young stellar subgroup of massive, hot stars that forms part of the larger Scorpius–Centaurus OB association in our galaxy.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lower Centaurus–Crux subgroup | 3 |
| Lower Centaurus–Crux canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5362901 — 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: Lower Centaurus–Crux Context triple: [Scorpius–Centaurus OB association, containsStellarSubgroup, Lower Centaurus–Crux]
-
A.
Crux Australis
Crux Australis is the Latin name for the Southern Cross, a prominent constellation in the southern sky used historically for navigation and featured on several national flags.
-
B.
Delta Crucis
Delta Crucis is a bright blue-white giant star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
C.
Corona Australis
Corona Australis is a small, southern constellation near the Milky Way, notable for its distinctive arc of stars and associated dark molecular cloud complex rich in star formation.
-
D.
Telescopium
Telescopium is a small, faint southern constellation introduced in the 18th century and named after the telescope.
-
E.
Piscis Austrinus
Piscis Austrinus is a southern constellation traditionally depicted as a fish and best known for containing the bright star Fomalhaut.
- 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: Lower Centaurus–Crux Target entity description: Lower Centaurus–Crux is a nearby, young stellar subgroup of massive, hot stars that forms part of the larger Scorpius–Centaurus OB association in our galaxy.
-
A.
Crux Australis
Crux Australis is the Latin name for the Southern Cross, a prominent constellation in the southern sky used historically for navigation and featured on several national flags.
-
B.
Delta Crucis
Delta Crucis is a bright blue-white giant star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
C.
Corona Australis
Corona Australis is a small, southern constellation near the Milky Way, notable for its distinctive arc of stars and associated dark molecular cloud complex rich in star formation.
-
D.
Telescopium
Telescopium is a small, faint southern constellation introduced in the 18th century and named after the telescope.
-
E.
Piscis Austrinus
Piscis Austrinus is a southern constellation traditionally depicted as a fish and best known for containing the bright star Fomalhaut.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
OB subgroup
ⓘ
stellar association subgroup ⓘ stellar moving group ⓘ |
| age | approximately 15 million years ⓘ |
| ageRange | about 10–20 million years ⓘ |
| componentOf |
Gould Belt region
ⓘ
linked to:
Gould Belt
|
| distanceFromSun |
about 350 light-years
ⓘ
approximately 110 parsecs ⓘ |
| galacticQuadrant | local Orion Arm ⓘ |
| hasAlternativeName | LCC subgroup ⓘ |
| hasCoordinateConcentration |
constellation Centaurus
ⓘ
constellation Crux ⓘ
linked to:
Crux constellation
constellation Lupus ⓘ
linked to:
Lupus constellation
constellation Musca ⓘ |
| hasDiscoveryMethod | kinematic grouping of early-type stars ⓘ |
| hasKinematicProperty |
co-moving stars
ⓘ
common space motion ⓘ |
| hasMemberCount |
over 1000 candidate members
ⓘ
several hundred stars ⓘ |
| hasMetallicity | approximately solar metallicity ⓘ |
| hasParentGroup |
Sco–Cen OB association
ⓘ
linked to:
Scorpius–Centaurus OB association
|
| hasResearchUse |
laboratory for studying early stellar evolution
ⓘ
testing star formation theories in OB associations ⓘ |
| hasSignificance | nearest OB association subgroup to the Sun ⓘ |
| hasStarType |
A-type stars
ⓘ
B-type stars ⓘ T Tauri stars ⓘ hot stars ⓘ massive stars ⓘ pre-main-sequence stars ⓘ |
| hasSubgroupType | OB stars ⓘ |
| isAssociatedWith |
local bubble formation scenarios
ⓘ
recent star formation in solar neighbourhood ⓘ |
| isLargestSubgroupOf | Scorpius–Centaurus OB association ⓘ |
| isNearby | Sun ⓘ |
| isOlderThan |
Upper Scorpius subgroup
ⓘ
linked to:
Upper Scorpius
|
| isSourceRegionOf | nearby OB stars ⓘ |
| isYoung | true ⓘ |
| isYoungerThan | Upper Centaurus–Lupus ⓘ |
| locatedIn |
Milky Way
ⓘ
solar neighbourhood ⓘ |
| partOf | Scorpius–Centaurus OB association ⓘ |
| subgroupOf | Scorpius–Centaurus OB association ⓘ |
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: Lower Centaurus–Crux Description of subject: Lower Centaurus–Crux is a nearby, young stellar subgroup of massive, hot stars that forms part of the larger Scorpius–Centaurus OB association in our galaxy.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Lower Centaurus–Crux
linked to: Lower Centaurus–Crux
linked to: Lower Centaurus–Crux