The Ouestion of Carbon in Bright Line Stars

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THE spectrum of carbon is one which is subject to very great changes when examined under different experimental conditions, and an acquaintance with these variations is essential to an adequate discussion of the spectra of the heavenly bodies.


  1. 1

    Potsdam Observations, 1881, II. p. 173.

  2. 2

    In 1888 I wrote: "This band is evidently the bright band of carbon, commencing at 474, with a maximum about 468, as observed and photographed at Kensington" (Roy. Soc. Proc., vol. xliv. p. 35). Later in the same year I added: "It is necessary to state that the maximum luminosity of the blue band, under some conditions, is about 468. The conditions under which this band has its maximum luminosity at 468 in Geissler tubes seem to be those of maximum conductivity" (Roy. Soc. Proc., vol. xlv. p. 167).

  3. 3

    Roy. Soc. Proc., vol. xlix. p. 46.

  4. 4

    Astronomy and Astrophysics, 1893, p. 555.

  5. 5

    ibid., 1894, p. 448.

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LOCKYER, J. The Ouestion of Carbon in Bright Line Stars. Nature 55, 304–305 (1897) doi:10.1038/055304a0

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