NGC 2207
E526452
NGC 2207 is a large spiral galaxy in the constellation Canis Major, notable for its dramatic gravitational interaction and ongoing collision with the nearby galaxy IC 2163.
All labels observed (2)
| Label | Occurrences |
|---|---|
| NGC 2207 canonical | 4 |
| NGC 2207–IC 2163 interacting system | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5259967 — 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 2207 Context triple: [Canis Major, contains, NGC 2207]
-
A.
NGC 221
NGC 221 is a compact dwarf elliptical galaxy in the Local Group, best known as the bright satellite galaxy M32 orbiting the Andromeda Galaxy.
-
B.
NGC 224
NGC 224 is the Andromeda Galaxy, a massive spiral galaxy and the closest major galactic neighbor to the Milky Way.
-
C.
NGC 2246
NGC 2246 is a catalog designation for a bright emission region within the Rosette Nebula, a large star-forming complex in the constellation Monoceros.
-
D.
NGC 2023
NGC 2023 is a bright reflection nebula in the constellation Orion, illuminated by a young B-type star and noted for its complex dust and gas structures.
-
E.
NGC 2004
NGC 2004 is a rich young star cluster located in the Large Magellanic Cloud within the southern constellation Dorado.
- 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 2207 Target entity description: NGC 2207 is a large spiral galaxy in the constellation Canis Major, notable for its dramatic gravitational interaction and ongoing collision with the nearby galaxy IC 2163.
-
A.
NGC 221
NGC 221 is a compact dwarf elliptical galaxy in the Local Group, best known as the bright satellite galaxy M32 orbiting the Andromeda Galaxy.
-
B.
NGC 224
NGC 224 is the Andromeda Galaxy, a massive spiral galaxy and the closest major galactic neighbor to the Milky Way.
-
C.
NGC 2246
NGC 2246 is a catalog designation for a bright emission region within the Rosette Nebula, a large star-forming complex in the constellation Monoceros.
-
D.
NGC 2023
NGC 2023 is a bright reflection nebula in the constellation Orion, illuminated by a young B-type star and noted for its complex dust and gas structures.
-
E.
NGC 2004
NGC 2004 is a rich young star cluster located in the Large Magellanic Cloud within the southern constellation Dorado.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
interacting galaxy
ⓘ
spiral galaxy ⓘ |
| apparentMagnitudeV | 11.6 ⓘ |
| apparentSize | 4.3 × 2.8 arcminutes ⓘ |
| catalog | New General Catalogue ⓘ |
| collidingWith | IC 2163 ⓘ |
| constellation | Canis Major ⓘ |
| declination | −21° 22′ 21″ ⓘ |
| discoveredBy | John Herschel ⓘ |
| discoveryDate | 1835 ⓘ |
| distanceFromEarth |
about 24 megaparsecs
ⓘ
about 80 million light-years ⓘ |
| environment | field galaxy outside rich cluster core ⓘ |
| futureOutcome | expected eventual merger with IC 2163 ⓘ |
| galaxyType | barred spiral galaxy ⓘ |
| hasDust | abundant interstellar dust ⓘ |
| hasFeature |
distorted outer arms
ⓘ
dust lanes ⓘ prominent spiral arms ⓘ tidal tails ⓘ |
| hasGas | rich in neutral and molecular gas ⓘ |
| hasNearbyGalaxy | IC 2163 ⓘ |
| hasProcess |
enhanced star formation
ⓘ
gravitational interaction with IC 2163 ⓘ ongoing galaxy collision ⓘ |
| hasStarFormationRegion | massive star-forming complexes in spiral arms ⓘ |
| hasXRaySources | numerous ultraluminous X-ray sources ⓘ |
| hostGalaxyOf |
supernova SN 1975A
ⓘ
supernova SN 1999ec ⓘ supernova SN 2003H ⓘ supernova SN 2013ai ⓘ |
| interactingWith | IC 2163 ⓘ |
| interactionEffect |
gas inflows toward central regions
ⓘ
tidal distortions ⓘ triggered starbursts ⓘ |
| locatedIn | constellation Canis Major ⓘ |
| morphologicalType | SAB(rs)bc ⓘ |
| observedBy |
Chandra X-ray Observatory
ⓘ
Hubble Space Telescope ⓘ Spitzer Space Telescope ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
infrared wavelengths ⓘ optical wavelengths ⓘ |
| partOf |
NGC 2207–IC 2163 interacting system
ⓘ
linked to:
NGC 2207
|
| radialVelocity | 2740 km/s ⓘ |
| redshift | 0.009137 ⓘ |
| rightAscension | 06h 16m 22s ⓘ |
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 2207 Description of subject: NGC 2207 is a large spiral galaxy in the constellation Canis Major, notable for its dramatic gravitational interaction and ongoing collision with the nearby galaxy IC 2163.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: NGC 2207