UGC 452
E459103
UGC 452, better known as Messier 32 (M32), is a compact dwarf elliptical satellite galaxy of the Andromeda Galaxy in the Local Group.
All labels observed (1)
| Label | Occurrences |
|---|---|
| UGC 452 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4618479 — 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: UGC 452 Context triple: [M32, alsoKnownAs, UGC 452]
-
A.
UGC 4483
UGC 4483 is a faint dwarf irregular galaxy located in the constellation Camelopardalis and is a member of the nearby M81 Group of galaxies.
-
B.
UGC 4305
UGC 4305 is a dwarf irregular galaxy located in the nearby M81 Group in the constellation Ursa Major.
-
C.
UGC 9240
UGC 9240 is a dwarf irregular galaxy located in the constellation Ursa Major and is a member of the nearby M81 Group of galaxies.
-
D.
UGC 9405
UGC 9405 is a dwarf galaxy that is a member of the nearby M81 Group in the constellation Ursa Major.
-
E.
UGC 9992
UGC 9992 is a relatively faint, dwarf galaxy that is a member of the nearby M81 Group 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: UGC 452 Target entity description: UGC 452, better known as Messier 32 (M32), is a compact dwarf elliptical satellite galaxy of the Andromeda Galaxy in the Local Group.
-
A.
UGC 4483
UGC 4483 is a faint dwarf irregular galaxy located in the constellation Camelopardalis and is a member of the nearby M81 Group of galaxies.
-
B.
UGC 4305
UGC 4305 is a dwarf irregular galaxy located in the nearby M81 Group in the constellation Ursa Major.
-
C.
UGC 9240
UGC 9240 is a dwarf irregular galaxy located in the constellation Ursa Major and is a member of the nearby M81 Group of galaxies.
-
D.
UGC 9405
UGC 9405 is a dwarf galaxy that is a member of the nearby M81 Group in the constellation Ursa Major.
-
E.
UGC 9992
UGC 9992 is a relatively faint, dwarf galaxy that is a member of the nearby M81 Group in the constellation Ursa Major.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
compact galaxy
ⓘ
dwarf elliptical galaxy ⓘ satellite galaxy ⓘ |
| absoluteMagnitudeV | -16.5 ⓘ |
| alsoKnownAs |
M32
ⓘ
Messier 32 ⓘ NGC 221 ⓘ |
| angularSize |
6.4 arcminutes
ⓘ
8.7 arcminutes ⓘ |
| apparentMagnitudeV | 8.1 ⓘ |
| blackHoleMass | 2.5 million solar masses ⓘ |
| catalog |
Messier catalogue
ⓘ
New General Catalogue ⓘ Uppsala General Catalogue ⓘ |
| catalogNumber |
M32
ⓘ
NGC 221 ⓘ UGC 452 ⓘ |
| constellation | Andromeda ⓘ |
| contains | supermassive black hole ⓘ |
| declination | +40° 51′ 55″ ⓘ |
| discoverer | Guillaume Le Gentil ⓘ |
| discoveryYear | 1749 ⓘ |
| distanceFromEarth |
2.5 million light-years
ⓘ
770 kiloparsecs ⓘ |
| hasColor | yellowish ⓘ |
| hasFeature |
compact elliptical morphology
ⓘ
deficit of globular clusters ⓘ tidal truncation ⓘ |
| hasNucleus | compact stellar nucleus ⓘ |
| hasStarFormation | very low current star formation rate ⓘ |
| hasStellarPopulation | old stars ⓘ |
| isExampleOf | compact elliptical galaxy ⓘ |
| isNearestOfType | one of the nearest elliptical galaxies ⓘ |
| locatedIn | Local Group ⓘ |
| memberOf | Local Group ⓘ |
| metallicity | relatively high ⓘ |
| morphologicalType | cE2 ⓘ |
| namedAfter | Charles Messier ⓘ |
| near | center of the Andromeda Galaxy ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
infrared wavelengths ⓘ optical wavelengths ⓘ |
| radialVelocity | -205 km/s ⓘ |
| redshift | -0.000677 ⓘ |
| rightAscension | 00h 42m 41.8s ⓘ |
| satelliteOf | Andromeda Galaxy ⓘ |
| stellarPopulationAge | several billion years ⓘ |
| surfaceBrightness | high ⓘ |
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: UGC 452 Description of subject: UGC 452, better known as Messier 32 (M32), is a compact dwarf elliptical satellite galaxy of the Andromeda Galaxy in the Local Group.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.