Probable Values of Current Solar Cycle Peak

Figure 2

(a) Solar cycle amplitudes from cycle 4 to cycle 23 used to calculate the 𝑅_𝑛. The filled circles are the observed sunspots (𝑃_𝑛), and (b) Solar cycle peaks from cycles 16 to 24 as they are estimated. The filled triangles are the predicted sunspots (𝑅_𝑛).

(a)

(b)