SN 1961V
E395668
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SN 1961V canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3886076 — 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 1961V Context triple: [SN 1954J, similarTo, SN 1961V]
-
A.
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.
-
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.
Baade’s star
Baade’s star is a luminous, variable star in the Andromeda Galaxy notable for its role in Walter Baade’s work refining the cosmic distance scale.
-
D.
UY Scuti
UY Scuti is a 2021 studio album by Nigerian rapper and singer Olamide that blends Afrobeats, hip-hop, and pop influences.
-
E.
Cepheid
Cepheid is a molecular diagnostics company known for its rapid, automated PCR-based testing systems used in clinical and research settings.
- 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 1961V Target entity description: 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.
-
A.
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.
-
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.
Baade’s star
Baade’s star is a luminous, variable star in the Andromeda Galaxy notable for its role in Walter Baade’s work refining the cosmic distance scale.
-
D.
UY Scuti
UY Scuti is a 2021 studio album by Nigerian rapper and singer Olamide that blends Afrobeats, hip-hop, and pop influences.
-
E.
Cepheid
Cepheid is a molecular diagnostics company known for its rapid, automated PCR-based testing systems used in clinical and research settings.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical transient
ⓘ
luminous blue variable candidate outburst ⓘ peculiar supernova candidate ⓘ |
| catalogDesignation | SN 1961V self-link ⓘ |
| comparisonObjects |
Eta Carinae
ⓘ
supernova SN 1954J ⓘ
surface form:
SN 1954J
other SN impostors ⓘ |
| constellation | Perseus ⓘ |
| declination | +37° 20′ (approximate) ⓘ |
| discoveredBy | Fritz Zwicky ⓘ |
| discoveryDecade | 1960s ⓘ |
| discoveryYear | 1961 ⓘ |
| distanceToHostGalaxy |
≈ 30–33 million light-years
ⓘ
≈ 9–10 Mpc ⓘ |
| eventTypeStatus | disputed ⓘ |
| galaxyTypeOfHost | spiral galaxy ⓘ |
| hostGalaxy | NGC 1058 ⓘ |
| hostGalaxyMorphologicalType | SA(rs)c (approximate) ⓘ |
| hostGalaxyNGCNumber | NGC 1058 ⓘ |
| lightCurveBehavior |
irregular variability
ⓘ
plateau-like evolution ⓘ slow rise to maximum ⓘ |
| locatedIn | NGC 1058 ⓘ |
| notableFor |
extended pre-maximum brightening
ⓘ
ongoing debate about its true nature ⓘ unusual light curve ⓘ very luminous progenitor candidate ⓘ |
| observedIn |
X-ray wavelengths (upper limits / searches)
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| peakAbsoluteMagnitudeApprox | around −17 to −18 ⓘ |
| possibleClassification |
SN impostor
ⓘ
Type II supernova ⓘ super-outburst of luminous blue variable ⓘ |
| progenitorMassEstimate | > 50 solar masses (approximate) ⓘ |
| progenitorTypeCandidate | luminous blue variable star ⓘ |
| radioEmission | detected ⓘ |
| radioEmissionInterpretation | consistent with core-collapse supernova in some studies ⓘ |
| redshiftOfHostGalaxy | z ≈ 0.0017 ⓘ |
| researchTopics |
LBV eruptions
ⓘ
core-collapse supernova mechanisms ⓘ massive star evolution ⓘ supernova impostor classification ⓘ |
| rightAscension | 02h 43m (approximate) ⓘ |
| studiedWith |
Hubble Space Telescope
ⓘ
Very Large Array ⓘ ground-based optical telescopes ⓘ |
| survivingStarCandidate | reported in Hubble Space Telescope imaging ⓘ |
| survivingStarStatus | uncertain ⓘ |
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: SN 1961V Description of subject: 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.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
SN 1954J