UGC 5423
E450581
UGC 5423 is a dwarf irregular galaxy located in the nearby M81 Group in the constellation Ursa Major.
All labels observed (1)
| Label | Occurrences |
|---|---|
| UGC 5423 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4531658 — 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 5423 Context triple: [M81 Group, containsGalaxy, UGC 5423]
-
A.
Collinder 232
Collinder 232 is an open star cluster located within the Carina Nebula in the constellation Carina.
-
B.
NGC 3372
NGC 3372 is a massive, bright star-forming nebula in the Carina constellation, famous for housing the unstable supergiant star Eta Carinae and extensive regions of ionized gas and dust.
-
C.
Baade U
Baade U is a small lunar impact crater that forms one of the satellite craters surrounding the larger Baade crater on the Moon’s surface.
-
D.
Collinder 228
Collinder 228 is an open star cluster embedded in the Carina Nebula, notable for its young, massive stars that help illuminate and shape the surrounding gas and dust.
-
E.
Baade X
Baade X is a minor lunar impact crater located near the larger crater Baade on the Moon’s far side.
- 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 5423 Target entity description: UGC 5423 is a dwarf irregular galaxy located in the nearby M81 Group in the constellation Ursa Major.
-
A.
Collinder 232
Collinder 232 is an open star cluster located within the Carina Nebula in the constellation Carina.
-
B.
NGC 3372
NGC 3372 is a massive, bright star-forming nebula in the Carina constellation, famous for housing the unstable supergiant star Eta Carinae and extensive regions of ionized gas and dust.
-
C.
Baade U
Baade U is a small lunar impact crater that forms one of the satellite craters surrounding the larger Baade crater on the Moon’s surface.
-
D.
Collinder 228
Collinder 228 is an open star cluster embedded in the Carina Nebula, notable for its young, massive stars that help illuminate and shape the surrounding gas and dust.
-
E.
Baade X
Baade X is a minor lunar impact crater located near the larger crater Baade on the Moon’s far side.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
dwarf irregular galaxy
ⓘ
galaxy ⓘ |
| belongsToSupercluster | Virgo Supercluster ⓘ |
| catalog | UGC ⓘ |
| catalogNumber | 5423 ⓘ |
| celestialHemisphere | Northern celestial hemisphere ⓘ |
| contains | neutral hydrogen ⓘ |
| distanceReferenceObject |
M81
ⓘ
linked to:
Messier 81
|
| galaxyGroup | M81 Group ⓘ |
| hasGalaxyType |
dwarf galaxy
ⓘ
irregular galaxy ⓘ |
| hasIrregularStructure | true ⓘ |
| hasLowLuminosity | true ⓘ |
| hasNoProminentSpiralArms | true ⓘ |
| hasStarFormation | ongoing ⓘ |
| isGasRich | true ⓘ |
| isNearbyGalaxyOf | Milky Way ⓘ |
| isNonBarred | true ⓘ |
| locatedInConstellation | Ursa Major ⓘ |
| memberOf | M81 Group ⓘ |
| morphologicalType | Im ⓘ |
| observedIn |
optical wavelengths
ⓘ
radio wavelengths ⓘ |
| partOf | Local Volume ⓘ |
| redshift | low ⓘ |
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 5423 Description of subject: UGC 5423 is a dwarf irregular galaxy located in the nearby M81 Group in the constellation Ursa Major.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.