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Table 1

Rotation parameters for individual cycles in units of deg/day.

Northern hemisphere
First appearance of spots All spots

cycle Ω0 B Ω17 Ω0 B Ω17
12 14.280  ±  0.030 1.547  ±  0.372 14.151  ±  0.006 14.283  ±  0.010 1.505  ±  0.133 14.153  ±  0.003
13 14.209  ±  0.017 3.497  ±  0.241 13.910  ±  0.005 14.200  ±  0.016 3.319  ±  0.243 13.915  ±  0.005
14 14.226  ±  0.021 1.166  ±  0.245 14.125  ±  0.004 14.242  ±  0.016 1.664  ±  0.241 14.100  ±  0.005
15 14.387  ±  0.011 3.828  ±  0.153 14.060  ±  0.003 14.346  ±  0.012 3.021  ±  0.172 14.086  ±  0.003
16 14.429  ±  0.017 3.726  ±  0.204 14.110  ±  0.004 14.433  ±  0.020 3.827  ±  0.236 14.106  ±  0.004
17 14.431  ±  0.033 4.223  ±  0.412 14.068  ±  0.003 14.437  ±  0.007 4.033  ±  0.077 14.092  ±  0.001
18 14.369  ±  0.022 0.406  ±  0.260 14.331  ±  0.004 14.374  ±  0.015 0.467  ±  0.163 14.331  ±  0.003
19 14.309  ±  0.016 1.524  ±  0.156 14.179  ±  0.004 14.292  ±  0.016 1.347  ±  0.158 14.177  ±  0.003
20 14.203  ±  0.015 2.515  ±  0.200 13.988  ±  0.003 14.188  ±  0.009 2.340  ±  0.115 13.988  ±  0.002
21 14.595  ±  0.030 3.435  ±  0.357 14.302  ±  0.004 14.599  ±  0.025 3.780  ±  0.289 14.273  ±  0.003
22 14.495  ±  0.010 2.162  ±  0.098 14.309  ±  0.002 14.497  ±  0.024 2.090  ±  0.254 14.318  ±  0.005
23 14.511  ±  0.031 0.421  ±  0.481 14.467  ±  0.010 14.530  ±  0.034 0.659  ±  0.448 14.471  ±  0.008

Southern hemisphere
First appearance of spots All spots

cycle Ω0 B Ω17 Ω0 B Ω17
12 14.348  ±  0.016 3.004  ±  0.209 14.092  ±  0.003 14.337  ±  0.015 2.975  ±  0.200 14.081  ±  0.003
13 14.430  ±  0.024 1.008  ±  0.277 14.344  ±  0.008 14.436  ±  0.015 1.147  ±  0.199 14.338  ±  0.002
14 14.536  ±  0.014 2.724  ±  0.219 14.302  ±  0.005 14.606  ±  0.017 2.927  ±  0.275 14.353  ±  0.006
15 14.485  ±  0.017 1.023  ±  0.209 14.398  ±  0.003 14.489  ±  0.022 1.277  ±  0.271 14.380  ±  0.003
16 14.550  ±  0.011 2.630  ±  0.123 14.325  ±  0.003 14.549  ±  0.009 2.640  ±  0.109 14.323  ±  0.002
17 14.288  ±  0.020 4.578  ±  0.214 13.899  ±  0.004 14.300  ±  0.011 4.680  ±  0.112 13.899  ±  0.003
18 14.241  ±  0.017 3.924  ±  0.185 13.907  ±  0.003 14.229  ±  0.020 3.707  ±  0.201 13.912  ±  0.004
19 14.217  ±  0.026 4.252  ±  0.231 13.849  ±  0.007 14.207  ±  0.017 4.044  ±  0.185 13.859  ±  0.003
20 14.232  ±  0.027 2.646  ±  0.335 14.006  ±  0.005 14.254  ±  0.012 3.096  ±  0.141 13.989  ±  0.003
21 14.236  ±  0.027 1.926  ±  0.293 14.071  ±  0.004 14.240  ±  0.018 2.010  ±  0.202 14.068  ±  0.003
22 14.190  ±  0.027 1.420  ±  0.235 14.068  ±  0.007 14.158  ±  0.015 1.270  ±  0.121 14.055  ±  0.005
23 14.460  ±  0.026 0.901  ±  0.309 14.380  ±  0.008 14.461  ±  0.024 0.912  ±  0.293 14.383  ±  0.003

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