Open cluster NGC 6530
E100908
Open cluster NGC 6530 is a young, bright star cluster embedded in the Lagoon Nebula in the constellation Sagittarius, serving as a prominent site of active star formation within the Milky Way.
All labels observed (3)
| Label | Occurrences |
|---|---|
| open cluster NGC 6530 | 2 |
| NGC 6530 | 1 |
| Open cluster NGC 6530 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T868809 — 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: Open cluster NGC 6530 Context triple: [Orion Arm, contains, Open cluster NGC 6530]
-
A.
Carina Nebula
The Carina Nebula is a vast, active star-forming region in the Milky Way known for its towering gas and dust pillars and dramatic young stellar clusters.
-
B.
Pleiades
The Pleiades are a famous open star cluster in the constellation Taurus, often known as the Seven Sisters in Greek mythology.
-
C.
globular star cluster M13
Globular star cluster M13, also known as the Great Hercules Cluster, is a dense, bright spherical collection of hundreds of thousands of ancient stars located in the constellation Hercules and is one of the most prominent globular clusters visible from Earth.
-
D.
Hyades
The Hyades are a sisterhood of nymphs in Greek mythology, best known for their association with rain and their representation as a prominent open star cluster in the constellation Taurus.
-
E.
Stephan's Quintet
Stephan's Quintet is a visually striking compact group of five galaxies in the constellation Pegasus, famous for their complex gravitational interactions and dramatic appearance in astronomical imagery.
- 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: Open cluster NGC 6530 Target entity description: Open cluster NGC 6530 is a young, bright star cluster embedded in the Lagoon Nebula in the constellation Sagittarius, serving as a prominent site of active star formation within the Milky Way.
-
A.
Carina Nebula
The Carina Nebula is a vast, active star-forming region in the Milky Way known for its towering gas and dust pillars and dramatic young stellar clusters.
-
B.
Pleiades
The Pleiades are a famous open star cluster in the constellation Taurus, often known as the Seven Sisters in Greek mythology.
-
C.
globular star cluster M13
Globular star cluster M13, also known as the Great Hercules Cluster, is a dense, bright spherical collection of hundreds of thousands of ancient stars located in the constellation Hercules and is one of the most prominent globular clusters visible from Earth.
-
D.
Hyades
The Hyades are a sisterhood of nymphs in Greek mythology, best known for their association with rain and their representation as a prominent open star cluster in the constellation Taurus.
-
E.
Stephan's Quintet
Stephan's Quintet is a visually striking compact group of five galaxies in the constellation Pegasus, famous for their complex gravitational interactions and dramatic appearance in astronomical imagery.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
open star cluster
ⓘ
stellar cluster ⓘ young star cluster ⓘ |
| age |
approximately 1–3 million years
ⓘ
younger than 5 million years ⓘ |
| angularSize | about 14 arcminutes ⓘ |
| apparentMagnitudeV | about 4.6 ⓘ |
| associatedWith |
H II region
ⓘ
Lagoon Nebula ⓘ Messier 8 ⓘ |
| catalog | New General Catalogue ⓘ |
| catalogCode |
Open cluster NGC 6530
self-link
ⓘ
surface form:
NGC 6530
|
| contains |
B-type stars
ⓘ
Herbig Ae/Be stars ⓘ T Tauri stars ⓘ hundreds of stars ⓘ massive O-type stars ⓘ pre-main-sequence stars ⓘ |
| declination | −24° 21′ ⓘ |
| discoveredBy | John Herschel ⓘ |
| discoveryYear | 1830s ⓘ |
| distanceFromEarth |
approximately 1.2–1.6 kiloparsecs
ⓘ
approximately 4,000–5,200 light-years ⓘ |
| embeddedIn | Lagoon Nebula ⓘ |
| galacticLatitude | −1° ⓘ |
| galacticLongitude | 6° ⓘ |
| hasCoreRadius | a few arcminutes ⓘ |
| hasFeature |
embedded in molecular cloud
ⓘ
significant differential reddening ⓘ |
| hasMass | several thousand solar masses ⓘ |
| hasRole |
benchmark region for star formation studies
ⓘ
laboratory for studying early stellar evolution ⓘ |
| hasStellarPopulation | Population I ⓘ |
| ionizes | surrounding gas in Lagoon Nebula ⓘ |
| is | site of active star formation ⓘ |
| liesIn |
Sagittarius Arm
ⓘ
surface form:
Sagittarius Arm of the Milky Way
|
| locatedIn |
Lagoon Nebula
ⓘ
Milky Way ⓘ Sagittarius OB association region ⓘ
surface form:
Sagittarius OB1 association
|
| locatedInConstellation | Sagittarius ⓘ |
| near | Galactic Center direction ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
infrared wavelengths ⓘ optical wavelengths ⓘ |
| partOf | Milky Way ⓘ |
| rightAscension | 18h 04m ⓘ |
| studiedBy |
Chandra X-ray Observatory
ⓘ
Hubble Space Telescope ⓘ |
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: Open cluster NGC 6530 Description of subject: Open cluster NGC 6530 is a young, bright star cluster embedded in the Lagoon Nebula in the constellation Sagittarius, serving as a prominent site of active star formation within the Milky Way.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
NGC 6530
this entity surface form:
NGC 6530
this entity surface form:
open cluster NGC 6530