Table 1
Summary of the names, intervals (onset and end), and references for known prolonged minima. Intervals have been adopted from Usoskin et al. (2007) for the three prolonged minima before 1610 and from Usoskin et al. (2015) for the Maunder Minimum. References have been abbreviated as YSTCC (the Yosemite Solar Terrestrial Coupling Conference in 1978), E76 (Eddy, 1976), SQ80 (Stuiver & Quay, 1980), and SG80 (Stuiver & Grootes, 1980).
| Name | Onset | End | Origin | Reference |
|---|---|---|---|---|
| Dalton Minimum | 1797 | 1827 | John Dalton | YSTCC |
| Maunder Minimum | 1645 | 1715 | Edward Maunder | E76 |
| Spörer Minimum | 1390 | 1550 | Gustav Spörer | E76 |
| Wolf Minimum | 1280 | 1350 | Rudolf Wolf | SQ80 |
| Oort Minimum | 1010 | 1050 | Jan Oort | SG80 |
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