C 0844+120
E584562
C 0844+120 is an open star cluster in the constellation Cancer, better known as Messier 67, one of the oldest and most studied open clusters in the Milky Way.
All labels observed (1)
| Label | Occurrences |
|---|---|
| C 0844+120 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6301647 — 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: C 0844+120 Context triple: [Messier 67, catalogCode, C 0844+120]
-
A.
3C 84
3C 84 is a powerful radio-loud active galactic nucleus associated with the central galaxy NGC 1275 in the Perseus Cluster, notable for its strong jets and variable emission across the electromagnetic spectrum.
-
B.
C-8
C-8 is a commuter rail line within the Cercanías Madrid network that connects central Madrid with various suburban areas.
-
C.
UGC 12082
UGC 12082 is a dwarf galaxy that is a member of the nearby M81 Group of galaxies in the constellation Ursa Major.
-
D.
C8
C8 is the informal name for the Council of Cardinals, a group of senior advisers chosen by the Pope to help him govern and reform the Roman Catholic Church.
-
E.
UGC 7408
UGC 7408 is a dwarf irregular galaxy located in the nearby M81 Group of galaxies in the constellation Ursa Major.
- 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: C 0844+120 Target entity description: C 0844+120 is an open star cluster in the constellation Cancer, better known as Messier 67, one of the oldest and most studied open clusters in the Milky Way.
-
A.
3C 84
3C 84 is a powerful radio-loud active galactic nucleus associated with the central galaxy NGC 1275 in the Perseus Cluster, notable for its strong jets and variable emission across the electromagnetic spectrum.
-
B.
C-8
C-8 is a commuter rail line within the Cercanías Madrid network that connects central Madrid with various suburban areas.
-
C.
UGC 12082
UGC 12082 is a dwarf galaxy that is a member of the nearby M81 Group of galaxies in the constellation Ursa Major.
-
D.
C8
C8 is the informal name for the Council of Cardinals, a group of senior advisers chosen by the Pope to help him govern and reform the Roman Catholic Church.
-
E.
UGC 7408
UGC 7408 is a dwarf irregular galaxy located in the nearby M81 Group of galaxies in the constellation Ursa Major.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf | open star cluster ⓘ |
| age | about 3.5–4.5 billion years ⓘ |
| alsoKnownAs |
M67
ⓘ
Messier 67 ⓘ NGC 2682 ⓘ |
| angularSize | about 30 arcminutes ⓘ |
| apparentMagnitudeV | about 6.1 ⓘ |
| appearsNear | the ecliptic ⓘ |
| bestSeenDuring | northern spring ⓘ |
| bestSeenIn | small telescopes ⓘ |
| cataloguedBy | Charles Messier ⓘ |
| celestialHemisphere | northern celestial hemisphere ⓘ |
| contains |
blue straggler stars
ⓘ
numerous solar-type stars ⓘ red giant stars ⓘ |
| declination | +11° 49′ ⓘ |
| discoveredBy | Johann Gottfried Koehler ⓘ |
| discoveryYear | 1779 ⓘ |
| distanceFromEarth |
about 2,600–3,000 light-years
ⓘ
about 800–900 parsecs ⓘ |
| equatorialCoordinateSystemEpoch | J2000.0 ⓘ |
| galacticLatitude | +31° (approximate) ⓘ |
| galacticLongitude | 215° (approximate) ⓘ |
| galacticPopulation | open cluster population ⓘ |
| hasEstimatedMass | a few hundred solar masses ⓘ |
| hasEstimatedNumberOfStars | several hundred member stars ⓘ |
| locatedIn |
Galactic disk
ⓘ
Milky Way ⓘ |
| locatedInConstellation | Cancer ⓘ |
| messierNumber | 67 ⓘ |
| metallicity | approximately solar metallicity ⓘ |
| ngcNumber | 2682 ⓘ |
| notableFor |
being one of the most studied open clusters in the Milky Way
ⓘ
being one of the oldest known open clusters ⓘ |
| rightAscension | 08h 51m ⓘ |
| usedForStudyOf |
cluster dynamics
ⓘ
solar analogs ⓘ stellar evolution ⓘ |
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: C 0844+120 Description of subject: C 0844+120 is an open star cluster in the constellation Cancer, better known as Messier 67, one of the oldest and most studied open clusters in the Milky Way.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.