Pisces II Dwarf Galaxy
E503171
Pisces II Dwarf Galaxy is a faint, small satellite galaxy of the Milky Way located in the constellation Pisces and classified as an ultra-faint dwarf spheroidal galaxy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pisces II Dwarf Galaxy canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4618742 — 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: Pisces II Dwarf Galaxy Context triple: [Milky Way subgroup, hasMember, Pisces II Dwarf Galaxy]
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A.
Pisces Dwarf Galaxy
The Pisces Dwarf Galaxy is a small, faint dwarf irregular galaxy in the Local Group that orbits the Triangulum Galaxy (M33).
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B.
Canes Venatici II Dwarf Galaxy
Canes Venatici II Dwarf Galaxy is a faint, small satellite galaxy of the Milky Way located in the constellation Canes Venatici and classified as an ultra-faint dwarf spheroidal galaxy.
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C.
Leo II Dwarf Galaxy
Leo II Dwarf Galaxy is a faint, spheroidal dwarf galaxy and satellite of the Milky Way located in the constellation Leo and belonging to the Local Group of galaxies.
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D.
Bootes II Dwarf Galaxy
Bootes II Dwarf Galaxy is a faint, ultra-low-luminosity satellite galaxy of the Milky Way located in the constellation Boötes.
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E.
Ursa Major II Dwarf Galaxy
Ursa Major II Dwarf Galaxy is a faint, dark-matter-dominated dwarf spheroidal satellite galaxy orbiting the Milky Way 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: Pisces II Dwarf Galaxy Target entity description: Pisces II Dwarf Galaxy is a faint, small satellite galaxy of the Milky Way located in the constellation Pisces and classified as an ultra-faint dwarf spheroidal galaxy.
-
A.
Pisces Dwarf Galaxy
The Pisces Dwarf Galaxy is a small, faint dwarf irregular galaxy in the Local Group that orbits the Triangulum Galaxy (M33).
-
B.
Canes Venatici II Dwarf Galaxy
Canes Venatici II Dwarf Galaxy is a faint, small satellite galaxy of the Milky Way located in the constellation Canes Venatici and classified as an ultra-faint dwarf spheroidal galaxy.
-
C.
Leo II Dwarf Galaxy
Leo II Dwarf Galaxy is a faint, spheroidal dwarf galaxy and satellite of the Milky Way located in the constellation Leo and belonging to the Local Group of galaxies.
-
D.
Bootes II Dwarf Galaxy
Bootes II Dwarf Galaxy is a faint, ultra-low-luminosity satellite galaxy of the Milky Way located in the constellation Boötes.
-
E.
Ursa Major II Dwarf Galaxy
Ursa Major II Dwarf Galaxy is a faint, dark-matter-dominated dwarf spheroidal satellite galaxy orbiting the Milky Way in the constellation Ursa Major.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
dwarf spheroidal galaxy
ⓘ
ultra-faint dwarf galaxy ⓘ |
| belongsToClass |
Milky Way satellite galaxies
ⓘ
ultra-faint Milky Way companions ⓘ |
| discoveredBy | Sloan Digital Sky Survey data analysis ⓘ |
| discoveredIn | 2009 ⓘ |
| hasAlternativeName | Pisces II ⓘ |
| hasAngularSize | very small ⓘ |
| hasDistanceEstimateFromMilkyWay | on the order of hundreds of kiloparsecs ⓘ |
| hasGasContent | very low ⓘ |
| hasIntegratedLuminosity | extremely low ⓘ |
| hasMetallicity | very low ⓘ |
| hasMorphology | spheroidal ⓘ |
| hasStarFormationActivity | none or negligible ⓘ |
| hasStellarPopulation | old stars ⓘ |
| hasSurfaceBrightness | very low ⓘ |
| hostGalaxy | Milky Way ⓘ |
| isDarkMatterDominated | true ⓘ |
| isDifficultToDetect | true ⓘ |
| isDynamicallyDominatedBy | dark matter ⓘ |
| isFaint | true ⓘ |
| isGravitationallyBoundTo | Milky Way ⓘ |
| isLowLuminosity | true ⓘ |
| isObservedIn | optical wavelengths ⓘ |
| isPartOf | Local Group ⓘ |
| isResolvedIntoIndividualStars | true ⓘ |
| isSmall | true ⓘ |
| locatedInConstellation | Pisces ⓘ |
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: Pisces II Dwarf Galaxy Description of subject: Pisces II Dwarf Galaxy is a faint, small satellite galaxy of the Milky Way located in the constellation Pisces and classified as an ultra-faint dwarf spheroidal galaxy.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.