Volume 368, Number 1, March II 2001
|Page(s)||285 - 291|
|Section||Planets and planetary systems|
|Published online||15 March 2001|
On long-term predictions of the maximum sunspot numbers of solar cycles 21 to 23
Astronomy Program, SEES, Seoul National University, Seoul 151-742, Korea
2 Yunnan Observatory, CAS, Kunming 650011, National Astronomical Observatories, PR China
3 United Laboratory of Optical Astronomy, CAS, PR China
Corresponding author: K. J. Li, email@example.com
Accepted: 30 November 2000
We have collected a set of predicted values of maximum sunspot numbers of solar cycles 22 and 23 published in the literature and examined the characteristics of predictions made by various methods. The precursor methods are found to be always superior to other prediction methods. The maximum sunspot number of solar cycle 23 is here inferred to be about 162.
Key words: Sun: activity / Sun: predictions
© ESO, 2001
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