Observations of the Mg II lines near 2800 A from Copernicus
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Kondo, Y.↗
Engineering topics
Publications and source records attributed to Wolf, G. W..
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Five pairs of spectra of the eclipsing binary star beta Lyrae, obtained in May 1971 with the Cassegrain spectrograph of a 36-inch telescope at a dispersion of 39 A per mm, are presented. Variations of the He-I 4471-A line and a possibly related spectral feature are discussed.