open cluster NGC 6603
E505233
Open cluster NGC 6603 is a compact, distant star cluster embedded in the rich Milky Way star fields of the constellation Sagittarius.
All labels observed (1)
| Label | Occurrences |
|---|---|
| open cluster NGC 6603 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5240876 — 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 6603 Context triple: [Sagittarius Star Cloud, locatedNear, open cluster NGC 6603]
-
A.
open star cluster NGC 6611
Open star cluster NGC 6611 is a young, massive cluster of hot, bright stars that illuminates and shapes the surrounding gas and dust of the Eagle Nebula.
-
B.
Open cluster NGC 6530
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.
-
C.
NGC 6604
NGC 6604 is a young, compact open star cluster associated with the Serpens OB2 association, located near the Eagle Nebula in the constellation Serpens.
-
D.
open cluster NGC 2244
Open cluster NGC 2244 is a young, bright star cluster whose hot, massive stars illuminate and sculpt the surrounding Rosette Nebula in the constellation Monoceros.
-
E.
NGC 6618
NGC 6618 is a young, massive open star cluster embedded in the Omega Nebula (M17), notable for its intense star formation and luminous, hot stars.
- 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 6603 Target entity description: Open cluster NGC 6603 is a compact, distant star cluster embedded in the rich Milky Way star fields of the constellation Sagittarius.
-
A.
open star cluster NGC 6611
Open star cluster NGC 6611 is a young, massive cluster of hot, bright stars that illuminates and shapes the surrounding gas and dust of the Eagle Nebula.
-
B.
Open cluster NGC 6530
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.
-
C.
NGC 6604
NGC 6604 is a young, compact open star cluster associated with the Serpens OB2 association, located near the Eagle Nebula in the constellation Serpens.
-
D.
open cluster NGC 2244
Open cluster NGC 2244 is a young, bright star cluster whose hot, massive stars illuminate and sculpt the surrounding Rosette Nebula in the constellation Monoceros.
-
E.
NGC 6618
NGC 6618 is a young, massive open star cluster embedded in the Omega Nebula (M17), notable for its intense star formation and luminous, hot stars.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf | open cluster ⓘ |
| angularSize | ~5 arcminutes ⓘ |
| apparentMagnitudeV | ~11.4 ⓘ |
| appearsAs | compact cluster ⓘ |
| bestViewingSeason |
northern summer
ⓘ
southern winter ⓘ |
| catalog | NGC ⓘ |
| catalogNumber | 6603 ⓘ |
| declination | -18° 25′ ⓘ |
| discoveredBy | John Herschel ⓘ |
| discoveryYear | 1830s ⓘ |
| distanceFromEarth |
~2.7 kiloparsecs
ⓘ
~9,000 light-years ⓘ |
| embeddedIn | rich Milky Way star fields ⓘ |
| galacticLatitude | low ⓘ |
| hemisphereVisibility | southern sky favored ⓘ |
| locatedIn |
Milky Way
ⓘ
Sagittarius Star Cloud region ⓘ
linked to:
Sagittarius Star Cloud
Sagittarius constellation region near M24 ⓘ
linked to:
Messier 24
|
| locatedInConstellation | Sagittarius ⓘ |
| memberOf |
Milky Way disk
ⓘ
linked to:
Galactic disk
|
| observedIn | optical wavelengths ⓘ |
| partOf |
Milky Way inner regions
ⓘ
linked to:
Milky Way bulge and bar
|
| rightAscension | 18h 18m ⓘ |
| skyLocation | toward Galactic center direction ⓘ |
| stellarPopulation | rich ⓘ |
| type | compact open cluster ⓘ |
| visibility | best seen with large amateur 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: open cluster NGC 6603 Description of subject: Open cluster NGC 6603 is a compact, distant star cluster embedded in the rich Milky Way star fields of the constellation Sagittarius.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.