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Astrophysics and Space Science

, Volume 118, Issue 1–2, pp 159–162 | Cite as

On the Spörer Minimum

  • Yaotiao Jiang
  • Zhentao Xu
Section 2a: The Sun

Abstract

In this paper we have examined the real behaviour of solar activity during the period AD 1400–1600. The results are as follows: (1) the distributions of the 20 naked-eye sunspot records are inhomogeneous. There are 2 sightings in the 15th century and 18 sightings in the 16th century; (2) the distributions of auroral records are similar to sunspot. There are 33 records in the 15th century and 315 records in the 16th century; (3) the climatic fluctuations in China shows that the period AD 1430–1520 was cold while the period AD 1520–1620 was warm. These facts clearly demonstrate that the Spörer Minimum, if it extended from AD 1460 to 1550, could be a specious results and it, if its extent was AD 1400–1510, is a real feature of solar variability in that time.

Keywords

15th Century Solar Activity Climatic Fluctuation Real Feature Real Behaviour 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Clark, D. H. and Stephenson, F. R.: 1978,Quant. J. Roy. Astron. Soc. 19, 387.Google Scholar
  2. Dai, N. Z. and Chen, M. D.: 1980,Collected Works of the History of Science and Technology, No. 6.Google Scholar
  3. Eddy, J.: 1976a,Science 192, 1189.Google Scholar
  4. Eddy, J.: 1976b,Physics of Solar Planetary Environment.Google Scholar
  5. Eddy, J.: 1983,Solar Phys. 89, 195.Google Scholar
  6. Siscoe, G. L.: 1980,Rev. Geophys. Space Phys. 18, 647.Google Scholar
  7. Wang, J. C. H.: 1979,Bull. Am. Astron. Soc. 11, 610.Google Scholar
  8. Wittmann, A.: 1978,Astron. Astrophys. 66, 93.Google Scholar
  9. Xu, Z. T. and Jiang, Y. T.: 1982,CAA,6, 84.Google Scholar
  10. Zhu, K. Z.: 1973,Scientia Sinica 16(2), 226.Google Scholar
  11. Zhuo, Z. D.et al.: 1978,J. Lanzhou Univ., No. 2.Google Scholar

Copyright information

© D. Reidel Publishing Company 1986

Authors and Affiliations

  • Yaotiao Jiang
    • 1
  • Zhentao Xu
    • 2
  1. 1.Department of AstronomyNanjing UniversityNanjingChina
  2. 2.Purple Mountain ObservatoryNanjingChina

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