NGC 7318A is an elliptical galaxy
E290088
NGC 7318A is an elliptical galaxy that forms part of Stephan’s Quintet, a compact group of interacting galaxies in the constellation Pegasus.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 7318A is an elliptical galaxy canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2706432 — 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: NGC 7318A is an elliptical galaxy Context triple: [Stephan's Quintet, memberGalaxyType, NGC 7318A is an elliptical galaxy]
-
A.
NGC 1432
NGC 1432 is a reflection nebula in the constellation Taurus that is part of the Pleiades (Seven Sisters) star cluster.
-
B.
NGC 598
NGC 598 is the Triangulum Galaxy, a nearby spiral galaxy in the Local Group and one of the closest large galaxies to the Milky Way.
-
C.
Centaurus A/M83 Group
The Centaurus A/M83 Group is a nearby galaxy group dominated by the massive galaxies Centaurus A and Messier 83, forming one of the closest large-scale neighbors to our own galactic neighborhood.
-
D.
M81 Group
The M81 Group is a nearby collection of galaxies in the constellation Ursa Major, dominated by the large spiral galaxy Messier 81 and known for its interacting members and active star formation.
-
E.
Pisces Dwarf Galaxy
The Pisces Dwarf Galaxy is a small, faint dwarf irregular galaxy in the Local Group that orbits the Triangulum Galaxy (M33).
- 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: NGC 7318A is an elliptical galaxy Target entity description: NGC 7318A is an elliptical galaxy that forms part of Stephan’s Quintet, a compact group of interacting galaxies in the constellation Pegasus.
-
A.
NGC 1432
NGC 1432 is a reflection nebula in the constellation Taurus that is part of the Pleiades (Seven Sisters) star cluster.
-
B.
NGC 598
NGC 598 is the Triangulum Galaxy, a nearby spiral galaxy in the Local Group and one of the closest large galaxies to the Milky Way.
-
C.
Centaurus A/M83 Group
The Centaurus A/M83 Group is a nearby galaxy group dominated by the massive galaxies Centaurus A and Messier 83, forming one of the closest large-scale neighbors to our own galactic neighborhood.
-
D.
M81 Group
The M81 Group is a nearby collection of galaxies in the constellation Ursa Major, dominated by the large spiral galaxy Messier 81 and known for its interacting members and active star formation.
-
E.
Pisces Dwarf Galaxy
The Pisces Dwarf Galaxy is a small, faint dwarf irregular galaxy in the Local Group that orbits the Triangulum Galaxy (M33).
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
elliptical galaxy
ⓘ
galaxy ⓘ |
| apparentMagnitudeV | about 14 ⓘ |
| discoveredBy | Édouard Stephan ⓘ |
| distanceFromEarth |
approximately 300 million light-years
ⓘ
approximately 90 megaparsecs ⓘ |
| hasAlternativeName |
Arp 319A
ⓘ
linked to:
NGC 7319
HCG 92A ⓘ
linked to:
HCG 92
|
| hasCatalogDesignation |
NGC 7318A
ⓘ
linked to:
NGC 7318B
|
| hasDeclination | +33° 58′ (approximate) ⓘ |
| hasEnvironment | dense galaxy group environment ⓘ |
| hasInteractionWith |
NGC 7318A tidal features
ⓘ
NGC 7318B ⓘ NGC 7319 ⓘ |
| hasMorphologicalType | E ⓘ |
| hasRightAscension | 22h 35m (approximate) ⓘ |
| hasStarFormationActivity | low compared to spiral members of Stephan's Quintet ⓘ |
| hasTidalFeatures | yes ⓘ |
| isAlsoKnownAsComponent |
NGC 7318 North
ⓘ
linked to:
NGC 7318B
|
| isComponentOf |
NGC 7318
ⓘ
linked to:
NGC 7318B
|
| isInSupercluster |
Pisces–Perseus Supercluster (approximate large-scale structure region)
ⓘ
linked to:
Perseus–Pisces Supercluster
|
| isInteractingGalaxy | true ⓘ |
| isObservedInWavelength |
X-ray
ⓘ
infrared ⓘ optical ⓘ |
| isPartOf | Hickson Compact Group 92 ⓘ |
| isPartOfGalaxyGroup | Stephan's Quintet ⓘ |
| locatedInConstellation | Pegasus ⓘ |
| memberOf | Stephan's Quintet ⓘ |
| partOf | compact group of galaxies ⓘ |
| radialVelocity | approximately 6600 km/s ⓘ |
| redshift | approximately 0.022 ⓘ |
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: NGC 7318A is an elliptical galaxy Description of subject: NGC 7318A is an elliptical galaxy that forms part of Stephan’s Quintet, a compact group of interacting galaxies in the constellation Pegasus.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.