- Sporer's law
- астрон.закон Шперера
English-Russian scientific dictionary. 2008.
Sporer's law
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Spörer's law — predicts the variation of sunspot latitudes during a solar cycle. It was discovered by English astronomer Richard Christopher Carrington around 1861. Carrington s work was refined by German astronomer Gustav Spörer.At the start of a sunspot cycle … Wikipedia
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Timeline of solar astronomy — 9th century * 850 Ahmad ibn Muhammad ibn Kathīr al Farghānī (Alfraganus) gives values for the obliquity of the ecliptic, the precessional movement of the apogees of the Sun 10th century * 900 929 Muhammad ibn Jābir al Harrānī al Battānī… … Wikipedia
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