The heliospheric Hale cycle over the last 300 years and its implications for a “lost” late 18th century solar cycle | Journal of Space Weather and Space Climate

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Table 2.

Properties of the modelled open solar flux variations with/without the addition of SC4b compared with observed ¹⁰Be, ¹⁴C and auroral variations.

	B*(OSF) no SC4b	B*(OSF) with SC4b	B*(¹⁰Be)	N_A*	¹⁴C production
Time of primary SC4 peak	1788	1790–1792	1789	1788	–
Amplitude of SC4 peak relative to SC2 and SC3	Smaller	Larger	Larger	Larger	Larger
Secondary peak in 1794–1799?	Yes	No	Yes	No	–

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