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Cover Picture: Astron. Nachr. 8/2011 |
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| Abstract: | Digitized drawing of the Sun of 1847 Apr 14 observed in Dessau by Samuel Heinrich Schwabe who discovered 1844 the solar activity cycle (see R. Arlt, this issue, p. 805) (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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