Zehnfarbenphotometrie der vier Ap‐Sterne HD 27309, HD 119213, HD 170000 und HD 192913

Abstract

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Spectrum variability of the silicon AP star HD 192913

“…The apparent rotational velocity of HD 192913 is 14 km s -1 (Preston 1971). Bartolini, Foschini, and Piccioni (1974), Winzer (1974), Schoneich et al (1976), and Musielok et al (1980) investigated its photometry variability and found periods of 16.82 days, 16.478 days, 16.3 days, and 16.848 days, respectively. A period of 16.478 days is in discord with Babcock's (1958) effective magnetic-field measurements, but this result is of low significance.…”