Open cluster NGC 6530

E100908

open star cluster stellar cluster young star cluster

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.

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All labels observed (5)

Label	Occurrences
open cluster NGC 6530	7
NGC 6530	1
NGC 6530 region	1
Open cluster NGC 6530 canonical	1
open star cluster NGC 6530	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	NGC 6530 ⓘ linked to: Open cluster 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 of the Milky Way ⓘ linked to: Sagittarius Arm
locatedIn	Lagoon Nebula ⓘ Milky Way ⓘ Sagittarius OB1 association ⓘ linked to: Sagittarius OB association region
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

Referenced by (11)

Full triples — surface form annotated when it differs from this entity's canonical label.

Orion Arm → contains → Open cluster NGC 6530 ⓘ

NGC 6530 → catalogCode → NGC 6530 ⓘ

subject linked to: Open cluster NGC 6530