SN 1993J
E1324750
UNEXPLORED
SN 1993J is a well-studied Type IIb supernova that occurred in the nearby galaxy Messier 81 and became one of the brightest and most extensively observed supernovae of the late 20th century.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SN 1993J canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T18442691 — 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: SN 1993J Context triple: [Messier 81, supernovaRecorded, SN 1993J]
-
A.
SN 2004dj
SN 2004dj is a relatively nearby Type II-P supernova discovered in 2004 in the spiral galaxy NGC 2403, notable for being one of the brightest and closest core-collapse supernovae observed in recent decades.
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B.
SN 1987A
SN 1987A is a famous supernova, the closest observed in modern times, whose 1987 explosion in the Large Magellanic Cloud has provided key insights into stellar death and supernova physics.
-
C.
SN 1961V
SN 1961V is a peculiar and debated astronomical transient in the galaxy NGC 1058, long argued to be either an unusual supernova or a super-outburst of a luminous blue variable star.
-
D.
SN 1572
SN 1572 is a historically significant supernova in the constellation Cassiopeia whose detailed observations by Tycho Brahe helped challenge the Aristotelian view of an unchanging heavens.
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E.
SN 1604
SN 1604, also known as Kepler's Supernova, was a historically significant stellar explosion observed in 1604 that became one of the brightest recorded supernovae in the Milky Way.
- 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: SN 1993J Target entity description: SN 1993J is a well-studied Type IIb supernova that occurred in the nearby galaxy Messier 81 and became one of the brightest and most extensively observed supernovae of the late 20th century.
-
A.
SN 2004dj
SN 2004dj is a relatively nearby Type II-P supernova discovered in 2004 in the spiral galaxy NGC 2403, notable for being one of the brightest and closest core-collapse supernovae observed in recent decades.
-
B.
SN 1987A
SN 1987A is a famous supernova, the closest observed in modern times, whose 1987 explosion in the Large Magellanic Cloud has provided key insights into stellar death and supernova physics.
-
C.
SN 1961V
SN 1961V is a peculiar and debated astronomical transient in the galaxy NGC 1058, long argued to be either an unusual supernova or a super-outburst of a luminous blue variable star.
-
D.
SN 1572
SN 1572 is a historically significant supernova in the constellation Cassiopeia whose detailed observations by Tycho Brahe helped challenge the Aristotelian view of an unchanging heavens.
-
E.
SN 1604
SN 1604, also known as Kepler's Supernova, was a historically significant stellar explosion observed in 1604 that became one of the brightest recorded supernovae in the Milky Way.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.