Beobachtung des Siriusbegleiters

• Publisher: John Wiley and Sons
• Year: 1897
• Tongue: English
• Weight: 116 KB
• Volume: 142
• Category: Article
• ISSN: 0004-6337
• DOI: 10.1002/asna.18971420107

✦ Synopsis

The spectra of both stars, therefore, appear side by side in the photographic plates. In some they are scarcely dis- tinguishable, while in others the lines of the first star are broad and hazy, some of the faint lines appearing distinctly double. The lines in the spectrum of the second star are always single and well defined. One of the components of the binary is fainter than the other, so that the lines of its spectrum are sometimes of greater, and sometimes of shorter, wavelength than those of the brighter component. The difference in intensity also seems to change as if due to a variation in the light of one of the components.