Edward Walter Maunder1894
Shows the presence of a prolonged sunspot minimum in the 17-18th century in a paper published in 1894, the period, recognised initially by Sporer, bears the name Maunder minimum
Great Britain · Science / Astronomy. Chronological records rendered directly from the World History Database.
Shows the presence of a prolonged sunspot minimum in the 17-18th century in a paper published in 1894, the period, recognised initially by Sporer, bears the name Maunder minimum
Observed that the solar latitudes at which sunspots occur varies in a regular way over the course of an 11 year cycle & in 1904 publishes his results in the form of the "butterfly" diagram. Edward Maunder suggests that the Sun had changed from a period in which sunspots all but disappeared from the solar surface to a renewal of sunspot cycles starting in 1700
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