UGC 4305
E451665
UGC 4305 is a dwarf irregular galaxy located in the nearby M81 Group in the constellation Ursa Major.
All labels observed (1)
| Label | Occurrences |
|---|---|
| UGC 4305 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4531662 — 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 4305 Context triple: [M81 Group, containsGalaxy, UGC 4305]
-
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 9405
UGC 9405 is a dwarf galaxy that is a member of 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 8508
UGC 8508 is a dwarf irregular galaxy located in the constellation Ursa Major and is a member of the nearby M81 Group of galaxies.
-
E.
UGC 9128
UGC 9128 is a faint dwarf irregular galaxy located in 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 4305 Target entity description: UGC 4305 is a dwarf irregular galaxy located in the nearby M81 Group in the constellation Ursa Major.
-
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 9405
UGC 9405 is a dwarf galaxy that is a member of 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 8508
UGC 8508 is a dwarf irregular galaxy located in the constellation Ursa Major and is a member of the nearby M81 Group of galaxies.
-
E.
UGC 9128
UGC 9128 is a faint dwarf irregular galaxy located in the nearby M81 Group in the constellation Ursa Major.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
dwarf irregular galaxy
ⓘ
galaxy ⓘ |
| apparentMagnitudeV | 11.1 ⓘ |
| belongsToSupercluster | Virgo Supercluster ⓘ |
| catalog | UGC ⓘ |
| declination | +70° 43′ ⓘ |
| discoveredBy | Erik Holmberg ⓘ |
| discoveryMethod | optical observation ⓘ |
| distanceFromEarth |
3.4 megaparsecs
ⓘ
approximately 11 million light-years ⓘ |
| environment | nearby companion of M81 Group spirals ⓘ |
| gasRich | true ⓘ |
| hasAlternativeName |
DDO 50
ⓘ
linked to:
DDO
Holmberg 2 ⓘ Holmberg II ⓘ PGC 23324 ⓘ |
| hasDustContent | low to moderate ⓘ |
| hasNotableFeature |
irregular patchy star-forming regions
ⓘ
prominent H II regions ⓘ strong neutral hydrogen (HI) envelope ⓘ |
| hasStarFormationActivity | ongoing ⓘ |
| hasStarFormationRate | moderate for a dwarf galaxy ⓘ |
| hasStellarPopulation |
older low-mass stars
ⓘ
young massive stars ⓘ |
| isGravitationallyBoundTo | M81 Group potential ⓘ |
| isNearbyGalaxy | true ⓘ |
| isUsedAs | laboratory for studying star formation in low-metallicity environments ⓘ |
| locatedInConstellation | Ursa Major ⓘ |
| memberOf | M81 Group ⓘ |
| metallicity | low ⓘ |
| morphologicalType | Im ⓘ |
| observedBy |
Hubble Space Telescope
ⓘ
Very Large Array ⓘ |
| partOf | Local Volume ⓘ |
| radialVelocity | ~156 km/s ⓘ |
| redshift | 0.00048 ⓘ |
| rightAscension | 08h 19m ⓘ |
| surfaceBrightness | 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 4305 Description of subject: UGC 4305 is a dwarf irregular galaxy located in the nearby M81 Group in the constellation Ursa Major.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.