Spörer Minimum
E675174
The Spörer Minimum was a prolonged period of unusually low solar activity from roughly 1460 to 1550, associated with cooler global temperatures during the Little Ice Age.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Spörer Minimum canonical | 3 |
| Spörer Grand Minimum | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7581612 — 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: Spörer Minimum Context triple: [Little Ice Age, hasPart, Spörer Minimum]
-
A.
Aurora Triumphans
Aurora Triumphans is a symbolist Pre-Raphaelite painting by Evelyn De Morgan that depicts the triumph of spiritual light and awakening over darkness.
-
B.
Eliassen–Palm flux
Eliassen–Palm flux is a fundamental concept in atmospheric dynamics that quantifies the transport of wave activity and momentum by large-scale atmospheric waves, crucial for understanding the general circulation of the atmosphere.
-
C.
Saros cycle
The Saros cycle is an approximately 18-year period after which nearly identical solar and lunar eclipses repeat, due to the alignment of the Earth, Moon, and Sun.
-
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.
TY Coronae Australis
TY Coronae Australis is a young variable star in the Corona Australis constellation, associated with a nearby star-forming region and circumstellar material.
- 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: Spörer Minimum Target entity description: The Spörer Minimum was a prolonged period of unusually low solar activity from roughly 1460 to 1550, associated with cooler global temperatures during the Little Ice Age.
-
A.
Aurora Triumphans
Aurora Triumphans is a symbolist Pre-Raphaelite painting by Evelyn De Morgan that depicts the triumph of spiritual light and awakening over darkness.
-
B.
Eliassen–Palm flux
Eliassen–Palm flux is a fundamental concept in atmospheric dynamics that quantifies the transport of wave activity and momentum by large-scale atmospheric waves, crucial for understanding the general circulation of the atmosphere.
-
C.
Saros cycle
The Saros cycle is an approximately 18-year period after which nearly identical solar and lunar eclipses repeat, due to the alignment of the Earth, Moon, and Sun.
-
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.
TY Coronae Australis
TY Coronae Australis is a young variable star in the Corona Australis constellation, associated with a nearby star-forming region and circumstellar material.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical phenomenon
ⓘ
period of low solar activity ⓘ solar minimum ⓘ |
| approximateEndCentury | 16th century ⓘ |
| approximateStartCentury | 15th century ⓘ |
| characterizedBy |
multi-decadal duration
ⓘ
unusually low sunspot activity ⓘ |
| classification | grand solar minimum ⓘ |
| discoveredBy | Gustav Spörer ⓘ |
| duration | approximately 90 years ⓘ |
| endTime | circa 1550 ⓘ |
| fieldOfStudy |
climatology
ⓘ
paleoclimatology ⓘ solar physics ⓘ space weather ⓘ |
| follows | Medieval Maximum ⓘ |
| hasAlternativeName |
Spörer Grand Minimum
ⓘ
linked to:
Spörer Minimum
|
| hasCause | prolonged reduction in sunspot numbers ⓘ |
| hasContext |
grand solar minima
ⓘ
long-term solar variability ⓘ |
| hasEffect |
climatic cooling in parts of the Northern Hemisphere
ⓘ
cooler global temperatures ⓘ reduced solar activity ⓘ |
| hasMagnitude | strong reduction in solar irradiance (relative to modern averages) ⓘ |
| hasUncertainty | exact start and end dates ⓘ |
| impactOn |
North Atlantic climate variability
ⓘ
regional climate patterns ⓘ |
| inferredFrom |
beryllium-10 records in ice cores
ⓘ
carbon-14 records in tree rings ⓘ cosmogenic isotope data ⓘ historical sunspot records ⓘ |
| locatedInTheSystem | Solar System ⓘ |
| namedAfter | Gustav Spörer ⓘ |
| namedInHonorOf | Gustav Spörer ⓘ |
| partOf |
Holocene solar activity variations
ⓘ
Little Ice Age ⓘ |
| precedes | Maunder Minimum ⓘ |
| relatedTo |
Dalton Minimum
ⓘ
Little Ice Age ⓘ Maunder Minimum ⓘ Wolf Minimum ⓘ |
| startTime | circa 1460 ⓘ |
| studiedUsing |
climate proxies
ⓘ
solar activity reconstructions ⓘ |
| temporalLocation |
Early Modern Period
ⓘ
linked to:
Early Modern period
Late Middle Ages ⓘ |
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: Spörer Minimum Description of subject: The Spörer Minimum was a prolonged period of unusually low solar activity from roughly 1460 to 1550, associated with cooler global temperatures during the Little Ice Age.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Spörer Minimum