UGC 8508
E450584
UGC 8508 is a dwarf irregular galaxy located in the constellation Ursa Major and is a member of the nearby M81 Group of galaxies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| UGC 8508 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4531664 — 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 8508 Context triple: [M81 Group, containsGalaxy, UGC 8508]
-
A.
UJ
UJ is a major public university in Johannesburg, South Africa, known for its diverse academic programs and strong focus on research and innovation.
-
B.
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.
-
C.
UoC
UoC is a major public research university in Cologne, Germany, known for its broad range of academic disciplines and large student population.
-
D.
UCH
UCH is a leading public research university in Santiago, Chile, renowned for its academic excellence and significant influence on the country’s intellectual and cultural life.
-
E.
UGT
UGT is a major Spanish trade union confederation representing workers across multiple sectors and advocating for labor rights and social justice.
- 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 8508 Target entity description: UGC 8508 is a dwarf irregular galaxy located in the constellation Ursa Major and is a member of the nearby M81 Group of galaxies.
-
A.
UJ
UJ is a major public university in Johannesburg, South Africa, known for its diverse academic programs and strong focus on research and innovation.
-
B.
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.
-
C.
UoC
UoC is a major public research university in Cologne, Germany, known for its broad range of academic disciplines and large student population.
-
D.
UCH
UCH is a leading public research university in Santiago, Chile, renowned for its academic excellence and significant influence on the country’s intellectual and cultural life.
-
E.
UGT
UGT is a major Spanish trade union confederation representing workers across multiple sectors and advocating for labor rights and social justice.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
dwarf irregular galaxy ⓘ galaxy ⓘ |
| apparentMagnitudeV | approximately 13.8 ⓘ |
| catalog | UGC ⓘ |
| contains |
neutral hydrogen gas
ⓘ
old stellar populations ⓘ young stellar populations ⓘ |
| distanceFromEarth |
approximately 2.6 Mpc
ⓘ
approximately 8.5 million light-years ⓘ |
| gasContent | HI-rich ⓘ |
| hasAbsoluteMagnitudeV | approximately −13 ⓘ |
| hasAlternativeName |
2MASX J13315796+5449307
ⓘ
DDO 185 ⓘ IRAS 13300+5456 ⓘ KDG 73 ⓘ LEDA 47495 ⓘ Mailyan 23 ⓘ PGC 47495 ⓘ [KK98] 200 ⓘ |
| hasAngularSize | approximately 2.0 × 1.5 arcminutes ⓘ |
| hasCatalogNumber | 8508 ⓘ |
| hasGalaxyType |
dwarf irregular
ⓘ
irregular galaxy ⓘ |
| hasGasMass | on the order of 10^7 solar masses ⓘ |
| hasHubbleFlowDistance | small ⓘ |
| hasIrregularMorphology | true ⓘ |
| hasLowSurfaceBrightness | true ⓘ |
| hasMorphologicalType | Im ⓘ |
| hasStarFormation | ongoing ⓘ |
| hasStellarMass | on the order of 10^7 solar masses ⓘ |
| isGravitationallyBoundTo | M81 Group ⓘ |
| isNearbyCompanionOf |
M81
ⓘ
linked to:
Messier 81
|
| isNearbyDwarfGalaxy | true ⓘ |
| isPartOf |
Ursa Major region of the sky
ⓘ
linked to:
Ursa Major
|
| locatedIn |
Local Volume
ⓘ
nearby universe ⓘ |
| locatedInConstellation | Ursa Major ⓘ |
| memberOf | M81 Group ⓘ |
| metallicity | low ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| partOf | M81 Group ⓘ |
| radialVelocity | approximately 260 km/s ⓘ |
| redshift | approximately 0.0009 ⓘ |
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 8508 Description of subject: UGC 8508 is a dwarf irregular galaxy located in the constellation Ursa Major and is a member of the nearby M81 Group of galaxies.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.