Spörer Minimum

Rarity: Common

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At a glance

Class

Invention

Domain

Science and technology

Knowledge cost

2

In collections

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What Wikipedia says

The Spörer Minimum is a hypothesized 90-year span of low solar activity, from about 1460 until 1550, which was identified and named by John A. Eddy in a landmark 1976 paper published in Science titled "The Maunder Minimum".

Excerpt from the Wikipedia article “Spörer Minimum”, under the CC BY-SA 4.0 license. Read the article on Wikipedia