Sunspot groups at high latitude
β Scribed by Li Kejun; Gu Xiaoma; Xiang Fuyuan; Liu Xiaohua; Chen Xuekun
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 125 KB
- Volume
- 317
- Category
- Article
- ISSN
- 0035-8711
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
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
We report measurements of the sunspot rotation rate at high sunspot latitutdes for the years 1966-1968. Ten spots at [latitude[-> 28 deg were found in our Mees Solar Observatory Ha patrol records for this period that are suitable for such a study. On the average we find a sidereal rotation rate of 1