B Cassiopeiae
E453400
B Cassiopeiae is the historic supernova observed in 1572 in the constellation Cassiopeia, famously studied by Tycho Brahe and crucial to early modern astronomy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| B Cassiopeiae canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4566474 — 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: B Cassiopeiae Context triple: [SN 1572, alsoKnownAs, B Cassiopeiae]
-
A.
UY Scuti
UY Scuti is a 2021 studio album by Nigerian rapper and singer Olamide that blends Afrobeats, hip-hop, and pop influences.
-
B.
Cassiopeia
Cassiopeia is a song by Joanna Newsom, known for its intricate harp accompaniment and mythologically inspired lyrics.
-
C.
Cassiopeia
"Cassiopeia" is a track by the indie music project Walnut Whales, known for its gentle, atmospheric style.
-
D.
Eta Carinae
Eta Carinae is a highly luminous and unstable massive stellar system in the constellation Carina, famous for its 19th-century "Great Eruption" and its surrounding Homunculus Nebula.
-
E.
V Coronae Australis
V Coronae Australis is a variable star located in the southern constellation Corona Australis.
- 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: B Cassiopeiae Target entity description: B Cassiopeiae is the historic supernova observed in 1572 in the constellation Cassiopeia, famously studied by Tycho Brahe and crucial to early modern astronomy.
-
A.
UY Scuti
UY Scuti is a 2021 studio album by Nigerian rapper and singer Olamide that blends Afrobeats, hip-hop, and pop influences.
-
B.
Cassiopeia
Cassiopeia is a song by Joanna Newsom, known for its intricate harp accompaniment and mythologically inspired lyrics.
-
C.
Cassiopeia
"Cassiopeia" is a track by the indie music project Walnut Whales, known for its gentle, atmospheric style.
-
D.
Eta Carinae
Eta Carinae is a highly luminous and unstable massive stellar system in the constellation Carina, famous for its 19th-century "Great Eruption" and its surrounding Homunculus Nebula.
-
E.
V Coronae Australis
V Coronae Australis is a variable star located in the southern constellation Corona Australis.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
supernova ⓘ |
| alternativeName |
Nova Stella
ⓘ
SN 1572 ⓘ Tycho's Supernova ⓘ
linked to:
SN 1572
|
| apparentMagnitudeAtMaximum | approximately −4 ⓘ |
| associatedWith | Tycho's Supernova Remnant ⓘ |
| brightnessComparisonAtMaximum |
brighter than Jupiter
ⓘ
rivaled Venus ⓘ |
| classification | historical supernova ⓘ |
| constellation | Cassiopeia ⓘ |
| culturalImpact |
contributed to questioning traditional cosmology
ⓘ
widely discussed in late 16th-century Europe ⓘ |
| discoveryDate | 1572-11-06 ⓘ |
| distanceEstimate | about 8,000 light-years (approximate) ⓘ |
| documentedInWork | De nova stella ⓘ |
| epoch | early modern period ⓘ |
| fadedFromVisibilityBy | around 1574 ⓘ |
| firstRecordedObservationBy | Wolfgang Schuler ⓘ |
| galacticLatitude | high galactic latitude region ⓘ |
| historicalSignificance |
important step toward modern cosmology
ⓘ
influenced acceptance of observational astronomy over pure Aristotelian philosophy ⓘ key evidence against the immutability of the heavens ⓘ |
| inferredLocationFromParallax |
beyond the Moon
ⓘ
in or near the sphere of fixed stars ⓘ |
| influenced |
Tycho Brahe's later work on planetary motions
ⓘ
development of precision positional astronomy ⓘ |
| lightCurveCharacteristic | slow decline typical of Type Ia supernovae ⓘ |
| locatedNear | the W-shaped asterism of Cassiopeia ⓘ |
| notableFor |
challenging the Aristotelian doctrine of an unchanging celestial realm
ⓘ
major impact on the Scientific Revolution in astronomy ⓘ providing evidence for change in the sphere of fixed stars ⓘ |
| observationalRecord | extensive naked-eye observations over many months ⓘ |
| observedBy |
Cornelius Gemma
ⓘ
Jerónimo Muñoz ⓘ Michael Maestlin ⓘ Thomas Digges ⓘ Tycho Brahe ⓘ many European astronomers ⓘ |
| observedInYear | 1572 ⓘ |
| parallaxMeasuredBy | Tycho Brahe ⓘ |
| parallaxResult | no detectable parallax ⓘ |
| peakVisibilityDateRange | late 1572 to early 1573 ⓘ |
| remnantLocatedIn | Milky Way ⓘ |
| studiedBy | Tycho Brahe ⓘ |
| supernovaType | Type Ia (probable) ⓘ |
| visibleFrom | Northern Hemisphere ⓘ |
| visibleTo | naked eye ⓘ |
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: B Cassiopeiae Description of subject: B Cassiopeiae is the historic supernova observed in 1572 in the constellation Cassiopeia, famously studied by Tycho Brahe and crucial to early modern astronomy.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.