UGC 7408
E453104
UGC 7408 is a dwarf irregular galaxy located in the nearby M81 Group of galaxies in the constellation Ursa Major.
All labels observed (1)
| Label | Occurrences |
|---|---|
| UGC 7408 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4531684 — 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 7408 Context triple: [M81 Group, containsGalaxy, UGC 7408]
-
A.
UGC 7242
UGC 7242 is a dwarf galaxy that is a member of the nearby M81 Group in the constellation Ursa Major.
-
B.
UGC 7298
UGC 7298 is a dwarf irregular galaxy that is a member of the nearby M81 Group of galaxies in the constellation Ursa Major.
-
C.
UGC 7356
UGC 7356 is a dwarf galaxy that is a member of the nearby M81 Group in the constellation Ursa Major.
-
D.
UGC 5423
UGC 5423 is a dwarf irregular galaxy located in the nearby M81 Group in the constellation Ursa Major.
-
E.
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.
- 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 7408 Target entity description: UGC 7408 is a dwarf irregular galaxy located in the nearby M81 Group of galaxies in the constellation Ursa Major.
-
A.
UGC 7242
UGC 7242 is a dwarf galaxy that is a member of the nearby M81 Group in the constellation Ursa Major.
-
B.
UGC 7298
UGC 7298 is a dwarf irregular galaxy that is a member of the nearby M81 Group of galaxies in the constellation Ursa Major.
-
C.
UGC 7356
UGC 7356 is a dwarf galaxy that is a member of the nearby M81 Group in the constellation Ursa Major.
-
D.
UGC 5423
UGC 5423 is a dwarf irregular galaxy located in the nearby M81 Group in the constellation Ursa Major.
-
E.
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.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
dwarf irregular galaxy
ⓘ
galaxy ⓘ |
| belongsTo |
Ursa Major constellation region
ⓘ
linked to:
Ursa Major
nearby galaxy groups ⓘ |
| catalog | UGC ⓘ |
| catalogNumber | 7408 ⓘ |
| coordinateSystem | equatorial coordinates ⓘ |
| distanceReferenceFrame |
Local Group frame
ⓘ
linked to:
Local Group rest frame
|
| hasDarkMatterDominance | dark-matter-dominated ⓘ |
| hasDominantComponent | neutral hydrogen ⓘ |
| hasDustContent | low dust content ⓘ |
| hasEnvironment | group environment ⓘ |
| hasGalaxyType | irregular galaxy ⓘ |
| hasGasContent | gas-rich ⓘ |
| hasKinematics | irregular rotation ⓘ |
| hasLuminosityClass | low-luminosity galaxy ⓘ |
| hasMetallicity | low metallicity ⓘ |
| hasMorphology | irregular, clumpy structure ⓘ |
| hasStarFormationActivity | ongoing star formation ⓘ |
| hasStellarMass | low stellar mass ⓘ |
| hasStellarPopulation |
intermediate-age stars
ⓘ
young stars ⓘ |
| hasSurfaceBrightness | low surface brightness ⓘ |
| isDwarfGalaxy | true ⓘ |
| isGravitationallyBoundTo | M81 Group potential ⓘ |
| isIrregularGalaxy | true ⓘ |
| isNearbyGalaxy | true ⓘ |
| isNearbyTo |
M81
ⓘ
linked to:
Messier 81
NGC 2403 ⓘ |
| isResolvedIntoStars | true ⓘ |
| isTargetOf |
HI mapping studies
ⓘ
nearby dwarf galaxy surveys ⓘ |
| isUsedToStudy |
dwarf galaxy evolution
ⓘ
environmental effects in galaxy groups ⓘ star formation in low-metallicity systems ⓘ |
| locatedIn | local universe ⓘ |
| locatedInConstellation | Ursa Major ⓘ |
| memberOf | M81 Group ⓘ |
| morphologicalType | Im ⓘ |
| observedIn |
optical wavelengths
ⓘ
radio wavelengths ⓘ |
| partOf | M81 Group ⓘ |
| skyLocation | northern celestial hemisphere ⓘ |
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 7408 Description of subject: UGC 7408 is a dwarf irregular galaxy located in the nearby M81 Group of galaxies in the constellation Ursa Major.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.