M22
E472712
M22 is a bright globular star cluster in the constellation Sagittarius, notable for being one of the closest and most easily observed globular clusters from Earth.
All labels observed (3)
How this entity was disambiguated
This entity first appeared as the object of triple T4835325 — 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: M22 Context triple: [Messier 22, alsoKnownAs, M22]
-
A.
M-22
M-22 is a scenic state highway in Michigan renowned for its picturesque route along the Lake Michigan shoreline and through the Leelanau Peninsula near Traverse City.
-
B.
M-20
M-20 is a state trunkline highway in Michigan that runs east–west across the central part of the state, connecting communities such as Midland to the broader regional road network.
-
C.
M26
The M26 is a U.S. World War II–era heavy/medium tank, commonly known as the M26 Pershing, that served as a precursor to the American Patton tank series.
-
D.
M2
M2 is a major British motorway that connects London with the port town of Dover in Kent, serving as an important route to the Channel ports.
-
E.
M2
M2 is the second line of the Warsaw Metro, running east–west across the city and connecting key districts on both sides of the Vistula River.
- 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: M22 Target entity description: M22 is a bright globular star cluster in the constellation Sagittarius, notable for being one of the closest and most easily observed globular clusters from Earth.
-
A.
M-22
M-22 is a scenic state highway in Michigan renowned for its picturesque route along the Lake Michigan shoreline and through the Leelanau Peninsula near Traverse City.
-
B.
M-20
M-20 is a state trunkline highway in Michigan that runs east–west across the central part of the state, connecting communities such as Midland to the broader regional road network.
-
C.
M26
The M26 is a U.S. World War II–era heavy/medium tank, commonly known as the M26 Pershing, that served as a precursor to the American Patton tank series.
-
D.
M2
M2 was the original name of MTV2, a U.S. cable television channel that focused on music videos and youth-oriented programming.
-
E.
M2
M2 is a major British motorway that connects London with the port town of Dover in Kent, serving as an important route to the Channel ports.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Messier object
ⓘ
deep-sky object ⓘ globular star cluster ⓘ |
| age | about 12 billion years ⓘ |
| alsoKnownAs |
GCl 97
ⓘ
Messier 22 ⓘ NGC 6656 ⓘ |
| angularSize | 32 arcminutes ⓘ |
| apparentMagnitudeV | 5.1 ⓘ |
| bestSeenFromHemisphere | Southern Hemisphere ⓘ |
| bestSeenInMonth | August ⓘ |
| cataloguedBy | Charles Messier ⓘ |
| contains |
blue straggler stars
ⓘ
millisecond pulsars ⓘ multiple stellar populations ⓘ planetary nebulae ⓘ variable stars ⓘ |
| coreRadius | about 1.3 arcminutes ⓘ |
| declination | −23° 54′ 12″ ⓘ |
| discoveredBy | Abraham Ihle ⓘ |
| discoveryYear | 1665 ⓘ |
| distanceFromEarth |
about 10,600 light-years
ⓘ
about 3.2 kiloparsecs ⓘ |
| galacticLatitude | −7.55° ⓘ |
| galacticLongitude | 9.89° ⓘ |
| halfLightRadius | about 3.4 arcminutes ⓘ |
| hasCoreCollapseStatus | non–core-collapsed ⓘ |
| hasNotableFeature |
easily observed with small telescopes or binoculars
ⓘ
one of the brightest globular clusters in the sky ⓘ one of the nearest globular clusters to Earth ⓘ |
| hostGalaxy | Milky Way ⓘ |
| locatedIn |
Galactic bulge region
ⓘ
linked to:
Milky Way center
Milky Way ⓘ |
| locatedInConstellation | Sagittarius ⓘ |
| locatedInRegionOfSky | Teapot asterism area of Sagittarius ⓘ |
| locatedNear |
Galactic center
ⓘ
linked to:
Milky Way center
|
| mass | about 5×10^5 solar masses ⓘ |
| messierNumber | 22 ⓘ |
| metallicity | [Fe/H] ≈ −1.7 ⓘ |
| ngcNumber | 6656 ⓘ |
| observedInWavelength |
X-ray
ⓘ
optical ⓘ radio ⓘ |
| rightAscension | 18h 36m 24s ⓘ |
| surfaceBrightness | high for a globular cluster ⓘ |
| tidalRadius | about 32 arcminutes ⓘ |
| visibilityFromEarth | naked-eye object under dark skies ⓘ |
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: M22 Description of subject: M22 is a bright globular star cluster in the constellation Sagittarius, notable for being one of the closest and most easily observed globular clusters from Earth.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: M22
linked to: M22