supernova SN 1954J
E92943
Supernova SN 1954J is a mid-20th-century stellar explosion event in an external galaxy that became notable through detailed optical observations and analysis by astronomers.
Aliases (1)
- SN 1954J ×46
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
→
luminous blue variable outburst → stellar eruption event → supernova impostor → |
| alsoKnownAs |
V12
→
Variable 12 → |
| catalogDesignation |
SN 1954J
→
|
| constellation |
Camelopardalis
→
|
| dataSource |
historical photographic plates
→
modern CCD observations → |
| discoveryYear |
1954
→
|
| distanceUnit |
megaparsec scale
→
|
| energySource |
massive star instability
→
|
| epoch |
20th century
→
|
| eventType |
non-terminal stellar explosion
→
|
| evidenceForSurvival |
detection of a surviving star at the position
→
|
| followUpObservations |
late-time imaging of the site
→
|
| galaxyTypeOfHost |
spiral galaxy
→
|
| hostGalaxy |
NGC 2403
→
|
| hostGalaxyClusterMembership |
M81 group
→
|
| hostGalaxyDistanceEstimate |
about 3 megaparsecs
→
|
| lightCurveProperty |
irregular outburst behavior
→
|
| location |
external galaxy
→
|
| notableFor |
being reclassified as a supernova impostor
→
detailed optical observations → survival of progenitor star → |
| observationalMethod |
astrometry
→
imaging → photometry → |
| observedBand |
optical
→
|
| observedBy |
professional astronomers
→
|
| originalClassification |
supernova
→
|
| outcome |
star not completely destroyed
→
|
| phenomenon |
giant eruption of massive star
→
|
| progenitorType |
luminous blue variable star
→
|
| researchTopic |
luminous blue variable eruptions
→
massive star evolution → pre-supernova outbursts → |
| revisedClassification |
supernova impostor
→
|
| scientificDiscipline |
astrophysics
→
observational astronomy → |
| similarTo |
Eta Carinae Great Eruption
→
SN 1961V → |
| usedAsExampleOf |
non-terminal massive star eruptions
→
supernova impostor class → |
Referenced by (2)
| Subject (surface form when different) | Predicate |
|---|---|
|
SN 1954J
("SN 1954J")
→
|
catalogDesignation |
|
Walter Baade
→
|
observed |