Cycle latitude effects for sunspot groups
β Scribed by Robert F. Howard
- Publisher
- Springer
- Year
- 1991
- Tongue
- English
- Weight
- 512 KB
- Volume
- 135
- Category
- Article
- ISSN
- 0038-0938
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π SIMILAR VOLUMES
Some earlier investigations seem to indicate that sunspots show an average drift in latitude which varies sinusoidally with the period of the double sunspot cycle (about 22 years), while the same investigations do not show similar variability with the period of the single sunspot cycle (about 11 yea
The N-S drift of sunspot groups has been studied in a different way than previously, using positions of recurrent groups of the years 1874-1976. The existence of the meridional motions, the general shape of the drift curves, and the dissimilarity between these curves around sunspot maxima and minima
Digitized Mount Wilson sunspot data from 1917 to 1985 are analyzed to examine group areas as a function of latitude distance (x) from the central latitude of activity in each hemisphere. On average these group areas are larger for the smallest values of I~J. The effect is similar to that seen for th