Open cluster M25
E100907
Open cluster M25 is a bright, relatively nearby star cluster in the constellation Sagittarius, visible with binoculars and often studied as a young stellar grouping within the Milky Way.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Open cluster M25 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T868808 — 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 M25 Context triple: [Orion Arm, contains, Open cluster M25]
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A.
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.
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B.
Messier
Messier is a French-origin surname most famously associated with Canadian ice hockey legend Mark Messier.
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C.
Pleiades
The Pleiades are a famous open star cluster in the constellation Taurus, often known as the Seven Sisters in Greek mythology.
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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.
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E.
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.
- 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 M25 Target entity description: Open cluster M25 is a bright, relatively nearby star cluster in the constellation Sagittarius, visible with binoculars and often studied as a young stellar grouping within the Milky Way.
-
A.
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.
-
B.
Messier
Messier is a French-origin surname most famously associated with Canadian ice hockey legend Mark Messier.
-
C.
Pleiades
The Pleiades are a famous open star cluster in the constellation Taurus, often known as the Seven Sisters in Greek mythology.
-
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.
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.
- F. None of above. chosen
Statements (47)
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 M25 Description of subject: Open cluster M25 is a bright, relatively nearby star cluster in the constellation Sagittarius, visible with binoculars and often studied as a young stellar grouping within the Milky Way.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.