CH Cygni Half a Century Ago – Changing Activity of the Cool Component
CH Cyg was observed visually by Professor Władysław DziewulsKi in the years 1930–1940 at the Vilno Observatory, with the 15 cm refractor using Argelander’s method. As a sKillful and experienced observer he achieved the accuracy of his single measurement of about 0.05 mag. The series of his 652 estim...
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Veröffentlicht in: | International Astronomical Union Colloquium 1988, Vol.103, p.219-220 |
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Format: | Artikel |
Sprache: | eng |
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