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Evolution of Ca plages of the CSSAR active regions

Published online by Cambridge University Press:  14 August 2015

G. Godoli
Affiliation:
Astrophysical Observatory, Catania, Italy
B. C. Monsignori Fossi
Affiliation:
Astrophysical Observatory, Arcetri, Italy

Abstract

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For each plage of the CSSAR period the daily projected areas have been determined and plotted versus time. Also the correction for foreshortening has been taken into account.

Daily fluctuations, of the plage corrected areas, certainly greater than the errors, have been found. Also area fluctuations of shorter periods have been observed.

Type
Part IV: Cooperative Study of Solar Active Regions (CSSAR)
Copyright
Copyright © Reidel 1968 

References

Anichini, M., Godoli, G. (1967) Mem. Soc. astr. ital., 38, 259.Google Scholar
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