The Astrophysical journal . stakably evident fromall the photographs. The amount of the apparent displacementdepends upon the degree of exposure. The red edge of theband fades away gradually, while the violet edge terminates 31 j-^ ir. IV. CAMPBELL rather sharply. Therefore, with increased exposures, the appar-ent center of the band moved toward the red. The centers ofthe overexposed images of H-y occupied positions correspondingto the following velocities : November i o + 58km 1898 August 2g + 59km * 58 August 30 56 December i 5 53 September 4 56 * 50 September 4 59 December J5 52 September i
The Astrophysical journal . stakably evident fromall the photographs. The amount of the apparent displacementdepends upon the degree of exposure. The red edge of theband fades away gradually, while the violet edge terminates 31 j-^ ir. IV. CAMPBELL rather sharply. Therefore, with increased exposures, the appar-ent center of the band moved toward the red. The centers ofthe overexposed images of H-y occupied positions correspondingto the following velocities : November i o + 58km 1898 August 2g + 59km * 58 August 30 56 December i 5 53 September 4 56 * 50 September 4 59 December J5 52 September ig 54 * 53 September ig 56 August 2g 57 November 2g 48 The two photographs of December 15, 1897, ^^^ that ofNovember 29, 1898, were taken sometime after the maxima forthe two years, when the brightness of the star was much smaller velocities recorded for those dates are due in partto the reduced intensity of the 7/7 band, but principally to realchanges in the character and position of the band, as ^a^
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectspectru, bookyear1895
