Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...172..332l&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 172, no. 1-2, Jan. 1987, p. 332-334.
Astronomy and Astrophysics
Astrophysics
12
Solar Cycles, Sunspots, Latitude, Motion
Scientific paper
The dependence of the meridional motions of sunspots on sunspot-type and phase in the solar activity cycle for the time interval 1947.9-1985.0 is examined; this was done also with the sunspot data from the solar-observatory Kanzelhoehe. For the total time interval, investigations for each cycle were carried out only for the elder or long lasting G, H, and J sunspot groups and distinctions between similar sunspot types AB, C, D, EF, GHJ (Zuerich-classification). The meridional motions about the different activity maxima were also examined. In all investigations in the period from 1947.9 to 1985.0 a tendency to a southdrift can be observed on both hemispheres of the sun, but the mean meridional motions are between the error-bars not very significantly different from zero.
Hanslmeier Arnold
Lustig G.
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