Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990baicz..41...79r&link_type=abstract
Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 41, no. 2, March 1990, p. 79-81.
Astronomy and Astrophysics
Astronomy
8
Solar Activity Effects, Solar Corona, Solar Cycles, Photosphere, Solar Radio Emission, Solar Rotation
Scientific paper
Daily values of the coronal index (CI) for the year 1987 are presented.
Minimal CI values were observed in February 1987. After March 1987, when
almost no CI variations were observed, the CI increased relatively
rapidly in April 1987 and continued to increase till November 1987 when
it became quiet.
Dzifcakova Elena
Rusin Vojtech
Rybansky Milan
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