NGC 6523
E509973
NGC 6523 is a large, bright emission nebula and active star-forming region located in the constellation Sagittarius, commonly known as the Lagoon Nebula.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 6523 canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T4911570 — 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: NGC 6523 Context triple: [Lagoon Nebula, alsoKnownAs, NGC 6523]
-
A.
NGC 6705
NGC 6705 is a rich, compact open star cluster in the constellation Scutum, notable for its high stellar density and brightness, making it one of the most impressive open clusters in the Milky Way.
-
B.
NGC 6205
NGC 6205 is a bright, densely packed globular star cluster in the constellation Hercules, commonly known as the Great Hercules Cluster (M13).
-
C.
NGC 6611
NGC 6611 is a young, massive open star cluster embedded within the Eagle Nebula, notable for illuminating and shaping its surrounding interstellar gas and dust.
-
D.
NGC 6656
NGC 6656 is a bright globular star cluster in the constellation Sagittarius, notable as one of the closest and most easily observed globular clusters from Earth.
-
E.
NGC 6845
NGC 6845 is a compact group of interacting galaxies located in the southern constellation Telescopium.
- 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: NGC 6523 Target entity description: NGC 6523 is a large, bright emission nebula and active star-forming region located in the constellation Sagittarius, commonly known as the Lagoon Nebula.
-
A.
NGC 6705
NGC 6705 is a rich, compact open star cluster in the constellation Scutum, notable for its high stellar density and brightness, making it one of the most impressive open clusters in the Milky Way.
-
B.
NGC 6205
NGC 6205 is a bright, densely packed globular star cluster in the constellation Hercules, commonly known as the Great Hercules Cluster (M13).
-
C.
NGC 6611
NGC 6611 is a young, massive open star cluster embedded within the Eagle Nebula, notable for illuminating and shaping its surrounding interstellar gas and dust.
-
D.
NGC 6656
NGC 6656 is a bright globular star cluster in the constellation Sagittarius, notable as one of the closest and most easily observed globular clusters from Earth.
-
E.
NGC 6845
NGC 6845 is a compact group of interacting galaxies located in the southern constellation Telescopium.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
deep-sky object ⓘ emission nebula ⓘ nebula ⓘ |
| alsoKnownAs |
Lagoon Nebula
ⓘ
M8 ⓘ Messier 8 ⓘ |
| angularSize | about 90 arcminutes by 40 arcminutes ⓘ |
| apparentMagnitudeV | about 6.0 ⓘ |
| appearsNear |
Sagittarius Star Cloud
ⓘ
open cluster NGC 6530 ⓘ
linked to:
Open cluster NGC 6530
|
| bestSeenFromHemisphere | Southern Hemisphere ⓘ |
| catalog |
Messier
ⓘ
linked to:
Messier catalogue
NGC ⓘ |
| containsObject |
Hourglass Nebula region
ⓘ
open cluster NGC 6530 ⓘ
linked to:
Open cluster NGC 6530
|
| declination | −24° 23′ ⓘ |
| discoveredBy | Giovanni Battista Hodierna ⓘ |
| discoveryYear | 1654 ⓘ |
| distanceFromEarth |
about 1250 parsecs
ⓘ
about 4100 light-years ⓘ |
| dominantEmission | hydrogen alpha ⓘ |
| galacticLatitude | about −1.3 degrees ⓘ |
| galacticLongitude | about 6.0 degrees ⓘ |
| hasComponent |
bright emission regions
ⓘ
dark nebulae ⓘ reflection nebula components ⓘ |
| hasFeature |
bright central lagoon-like structure
ⓘ
dust lanes ⓘ filamentary gas structures ⓘ |
| ionizedBy | hot young massive stars ⓘ |
| isRegionOf | active star formation ⓘ |
| isTargetFor |
amateur astronomers
ⓘ
astrophotography ⓘ |
| locatedIn |
Milky Way
ⓘ
Sagittarius Arm ⓘ |
| locatedInConstellation | Sagittarius ⓘ |
| messierNumber | M8 ⓘ |
| ngcNumber | NGC 6523 ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| partOf | Sagittarius-Carina arm star-forming complex ⓘ |
| rightAscension | 18h 03m ⓘ |
| spectralType | H II region ⓘ |
| visibleIn |
binoculars
ⓘ
small telescopes ⓘ |
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: NGC 6523 Description of subject: NGC 6523 is a large, bright emission nebula and active star-forming region located in the constellation Sagittarius, commonly known as the Lagoon Nebula.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.