Sonnenfleckenhäufigkeit und Sonnenaktivität
By: Karl Pilowski.
Series: Veröffentlichung / Universität Hannover, Astronomische Station ;; Nr. 17; Veröffentlichung (Universität Hannover. Astronomische Station) ;; Nr. 17.
Publisher: Universität Hannover, Astronomische Station
Published: 1987
Place of publication: Hannover
Language: ger
Number of pages: 68
Subjects: Solar cycle.; Solar activity.
Notes: Bibliography: p. 16.
Cover title.
Summary in English.