SN 1604
E481643
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.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Kepler supernova | 1 |
| Kepler's Supernova | 1 |
| SN 1604 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4943442 — 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 1604 Context triple: [SN 1987A, firstNakedEyeSupernovaSince, SN 1604]
-
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 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.
-
C.
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.
-
D.
Great Comet of 1577
The Great Comet of 1577 was a bright, widely observed comet whose precise measurements by Tycho Brahe helped demonstrate that comets travel through the celestial spheres, challenging the prevailing Aristotelian cosmology.
-
E.
supernova SN 1954J
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.
- 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 1604 Target entity description: 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.
-
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 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.
-
C.
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.
-
D.
Great Comet of 1577
The Great Comet of 1577 was a bright, widely observed comet whose precise measurements by Tycho Brahe helped demonstrate that comets travel through the celestial spheres, challenging the prevailing Aristotelian cosmology.
-
E.
supernova SN 1954J
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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
historical supernova ⓘ supernova ⓘ |
| alsoKnownAs |
Kepler supernova
ⓘ
linked to:
SN 1604
Kepler's Star ⓘ Kepler's Supernova ⓘ
linked to:
SN 1604
|
| approximateAge | over 400 years ⓘ |
| discoveredBy | Johannes Kepler ⓘ |
| distanceFromEarth |
approximately 20000 light-years
ⓘ
approximately 6 kiloparsecs ⓘ |
| documentedIn |
De Stella Nova in Pede Serpentarii
ⓘ
linked to:
De nova stella
|
| epochOfObservation | early 17th century ⓘ |
| explosionMechanism | thermonuclear disruption of white dwarf ⓘ |
| firstObservedOn | 1604-10-09 ⓘ |
| galacticLatitude | high galactic latitude ⓘ |
| historicalSignificance |
challenged Aristotelian idea of immutable heavens
ⓘ
last supernova in Milky Way observed with naked eye ⓘ |
| hostGalaxy | Milky Way ⓘ |
| influencedWorkOf | Johannes Kepler ⓘ |
| locatedIn |
Milky Way
ⓘ
constellation Ophiuchus ⓘ |
| observedAs | new star ⓘ |
| observedBy |
Arabic astronomers
ⓘ
Chinese astronomers ⓘ European astronomers ⓘ Galileo Galilei ⓘ Johannes Kepler ⓘ Korean astronomers ⓘ |
| observedByTelescope |
Chandra X-ray Observatory
ⓘ
Hubble Space Telescope ⓘ |
| peakBrightnessApparentMagnitude | approximately −2.5 ⓘ |
| peakBrightnessComparison |
almost as bright as Venus
ⓘ
brighter than Jupiter ⓘ |
| remnantAngularSize | about 3 arcminutes ⓘ |
| remnantCatalogName | G4.5+6.8 ⓘ |
| remnantDesignation | Kepler's Supernova Remnant ⓘ |
| remnantObservedIn |
X-ray
ⓘ
optical ⓘ radio ⓘ |
| supernovaType | Type Ia supernova ⓘ |
| usedFor |
calibration of supernova models
ⓘ
studies of Type Ia supernova remnants ⓘ studies of shock physics in interstellar medium ⓘ |
| visibleDuration | several months ⓘ |
| visibleToNakedEye | true ⓘ |
| yearOfPeakBrightness | 1604 ⓘ |
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 1604 Description of subject: 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.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: SN 1604
linked to: SN 1604