SN 1572
E121921
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.
All labels observed (3)
| Label | Occurrences |
|---|---|
| SN 1572 canonical | 1 |
| Tycho's Supernova | 1 |
| Tycho's Supernova Remnant | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1061454 — 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 1572 Context triple: [Tycho Brahe, observed, SN 1572]
-
A.
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.
-
B.
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.
-
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.
C/1996 B2
C/1996 B2 is the official designation of Comet Hyakutake, a bright long-period comet that passed unusually close to Earth in 1996 and became one of the most spectacular comets of the 20th century.
-
E.
Komet
Komet was the nickname of the Messerschmitt Me 163, a German World War II rocket-powered interceptor aircraft known for its extraordinary speed and unconventional design.
- 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 1572 Target entity description: 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.
-
A.
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.
-
B.
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.
-
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.
C/1996 B2
C/1996 B2 is the official designation of Comet Hyakutake, a bright long-period comet that passed unusually close to Earth in 1996 and became one of the most spectacular comets of the 20th century.
-
E.
Komet
Komet was the nickname of the Messerschmitt Me 163, a German World War II rocket-powered interceptor aircraft known for its extraordinary speed and unconventional design.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
historical supernova ⓘ supernova ⓘ |
| alsoKnownAs |
B Cassiopeiae
ⓘ
Nova Stella ⓘ SN 1572 ⓘ
surface form:
Tycho's Supernova
|
| apparentMagnitudeAtMaximum | about −4.0 ⓘ |
| brightnessComparedToJupiter | brighter ⓘ |
| brightnessComparedToVenus | similar or slightly fainter ⓘ |
| conclusionByTychoBrahe | object was beyond the Moon ⓘ |
| culturalImpact | widely reported in Europe and East Asia ⓘ |
| dateFirstObserved | 1572-11-06 ⓘ |
| dateFirstObservedByTychoBrahe | 1572-11-11 ⓘ |
| discoveredBy | Tycho Brahe ⓘ |
| distanceFromEarth |
about 2.5 kiloparsecs
ⓘ
about 8000 light-years ⓘ |
| documentedInWorkByTychoBrahe | De nova stella ⓘ |
| galacticPopulation | Galactic disk ⓘ |
| historicalSignificance |
challenged Aristotelian doctrine of unchanging heavens
ⓘ
important event in the Scientific Revolution ⓘ provided evidence that change can occur in the celestial realm ⓘ |
| hostGalaxy | Milky Way ⓘ |
| lastVisibleYear | 1574 ⓘ |
| locatedInConstellation | Cassiopeia ⓘ |
| observedBy |
Cornelius Gemma
ⓘ
Jerónimo Muñoz ⓘ Michael Maestlin ⓘ Thomas Digges ⓘ Tycho Brahe ⓘ many European astronomers ⓘ |
| observedInRegion |
China
ⓘ
Europe ⓘ Japan ⓘ Korean Peninsula ⓘ
surface form:
Korea
|
| parallaxMeasuredByTychoBrahe | not detectable with his instruments ⓘ |
| relatedTo |
Scientific Revolution
ⓘ
history of astronomy ⓘ |
| remnantCatalogDesignation | G120.1+1.4 ⓘ |
| remnantName |
SN 1572
self-linksurface differs
ⓘ
surface form:
Tycho's Supernova Remnant
|
| remnantObservedBy |
Chandra X-ray Observatory
ⓘ
Hubble Space Telescope ⓘ Very Large Array ⓘ |
| remnantObservedIn |
X-rays
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| remnantType | supernova remnant ⓘ |
| supernovaType | Type Ia supernova ⓘ |
| usedToMeasure | stellar parallax limits ⓘ |
| visibleDuration | about 16 months ⓘ |
| visibleToNakedEye | true ⓘ |
| yearOfAppearance | 1572 ⓘ |
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 1572 Description of subject: 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.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Tycho's Supernova
this entity surface form:
Tycho's Supernova Remnant