1. Maunder minimum - Noun
2. Maunder minimum - Proper noun
the Maunder minimum
Alternative form of Maunder Minimum
Maunder minimum (plural Maunder minimums or Maunder minima)
(astronomy) A period similar to the Maunder Minimum observed on a star other than the Sun.
the Maunder Minimum
(astronomy) The period between 1645 and 1715 marked by records and other indications of very low levels of sunspot activity of Earth's sun, corresponding to a period of global cooling.
Sunspot observations The Maunder Minimum occurred between 1645 and 1715 when very few sunspots were observed. Source: Internet
The total numbers of sunspots (but not Wolf numbers ) in different years were as follows: During the Maunder Minimum enough sunspots were sighted so that 11-year cycles could be extrapolated from the count. Source: Internet