NGC 6656
E504212
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 6656 canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4835326 — 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 6656 Context triple: [Messier 22, alsoKnownAs, NGC 6656]
-
A.
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.
-
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 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.
-
D.
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.
-
E.
NGC 6868
NGC 6868 is an elliptical galaxy located in the southern constellation Telescopium, notable for its membership in a small galaxy group and its relatively bright, smooth stellar profile.
- 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 6656 Target entity description: 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.
-
A.
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.
-
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 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.
-
D.
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.
-
E.
NGC 6868
NGC 6868 is an elliptical galaxy located in the southern constellation Telescopium, notable for its membership in a small galaxy group and its relatively bright, smooth stellar profile.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | globular star cluster ⓘ |
| absoluteMagnitudeV | about −8.5 ⓘ |
| age | about 12 billion years ⓘ |
| alsoKnownAs |
GCl 99
ⓘ
M 22 ⓘ
linked to:
M22
M22 ⓘ Messier 22 ⓘ |
| angularSize | 32 arcminutes ⓘ |
| apparentMagnitudeV | 5.1 ⓘ |
| appearsNear |
Galactic bulge
ⓘ
linked to:
Milky Way center
|
| bestSeenFrom | Southern Hemisphere ⓘ |
| bestViewingSeason |
northern summer
ⓘ
southern winter ⓘ |
| catalog |
Messier Catalogue
ⓘ
linked to:
Messier catalogue
New General Catalogue ⓘ |
| catalogNumber |
M22
ⓘ
NGC 6656 ⓘ |
| constellation | Sagittarius ⓘ |
| contains |
RR Lyrae variable stars
ⓘ
multiple stellar populations ⓘ planetary nebula GJJC 1 ⓘ |
| coreCollapseStatus | non–core-collapsed ⓘ |
| declination | −23° 54′ 12″ ⓘ |
| discoveredBy |
Abbé Nicolas-Louis de Lacaille
ⓘ
linked to:
Nicolas de Lacaille
|
| discoveryYear | 1747 ⓘ |
| distanceFromEarth_kpc | about 3.2 kiloparsecs ⓘ |
| distanceFromEarth_ly | about 10,600 light-years ⓘ |
| galacticLatitude | −7.55 degrees ⓘ |
| galacticLongitude | 9.89 degrees ⓘ |
| halfLightRadius | about 3.4 arcminutes ⓘ |
| hasCentralConcentration | moderate ⓘ |
| hasPhotometricVariability | true ⓘ |
| isEasilyObservedWith |
binoculars
ⓘ
small telescopes ⓘ |
| locatedIn |
Galactic halo
ⓘ
Milky Way ⓘ |
| mass | about 5×10^5 solar masses ⓘ |
| metallicity_[Fe/H] | about −1.7 ⓘ |
| notableFor |
being one of the brightest globular clusters in the sky
ⓘ
being one of the closest globular clusters to Earth ⓘ |
| observedBy | Hubble Space Telescope ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ |
| rightAscension | 18h 36m 24s ⓘ |
| spectralTypeDominant | G- and K-type giant stars ⓘ |
| surfaceBrightness | high ⓘ |
| visibleToNakedEye | true ⓘ |
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 6656 Description of subject: 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.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.