PGC 42741
E1489585
UNEXPLORED
PGC 42741 is a barred spiral galaxy in the constellation Virgo, better known as NGC 4639 and noted for hosting a Type Ia supernova used in measuring cosmic distances.
All labels observed (1)
| Label | Occurrences |
|---|---|
| PGC 42741 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T21301899 — 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: PGC 42741 Context triple: [NGC 4639, isCatalogedAs, PGC 42741]
-
A.
PGC 42701
PGC 42701 is a spiral galaxy, better known as NGC 4622, located in the constellation Centaurus and noted for its unusual backward-winding spiral arms.
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B.
PGC 45279
PGC 45279 is a barred spiral galaxy in the constellation Centaurus, better known as NGC 4945, and is one of the brightest and closest starburst galaxies to the Milky Way.
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C.
PGC 49473
PGC 49473 is a faint, nearby dwarf irregular galaxy in the Centaurus A/M83 galaxy group, cataloged in the Principal Galaxies Catalogue.
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D.
PGC 34176
PGC 34176 is a dwarf spheroidal satellite galaxy of the Milky Way located in the constellation Leo, commonly known as Leo I.
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E.
PGC 47495
PGC 47495 is a dwarf irregular galaxy in the constellation Ursa Major, cataloged in the Principal Galaxies Catalogue.
- 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: PGC 42741 Target entity description: PGC 42741 is a barred spiral galaxy in the constellation Virgo, better known as NGC 4639 and noted for hosting a Type Ia supernova used in measuring cosmic distances.
-
A.
PGC 42701
PGC 42701 is a spiral galaxy, better known as NGC 4622, located in the constellation Centaurus and noted for its unusual backward-winding spiral arms.
-
B.
PGC 45279
PGC 45279 is a barred spiral galaxy in the constellation Centaurus, better known as NGC 4945, and is one of the brightest and closest starburst galaxies to the Milky Way.
-
C.
PGC 49473
PGC 49473 is a faint, nearby dwarf irregular galaxy in the Centaurus A/M83 galaxy group, cataloged in the Principal Galaxies Catalogue.
-
D.
PGC 34176
PGC 34176 is a dwarf spheroidal satellite galaxy of the Milky Way located in the constellation Leo, commonly known as Leo I.
-
E.
PGC 47495
PGC 47495 is a dwarf irregular galaxy in the constellation Ursa Major, cataloged in the Principal Galaxies Catalogue.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.