Abstract
IV.
THE difference in the appearance of spectral lines and flutings having been explained, I now go on to state that the luminosity referred to, as seen in the meteorite experiment was not one of the lines in the spectrum of magnesium, but one of the flutings. I will next throw this on the screen (Fig. 17), and you will at once see the point. Here is the spectrum of magnesium obtained at the lowest temperature at which we can get any light from it at all. We have a fluting, which resembles closely the carbon fluting, but in a different part of the spectrum. We see that its brightest part is coincident with a certain part of the solar spectrum; and it so happens that the position of the line which Dr. Huggins had observed in the nebulæ lies very near the same position of the solar spectrum.
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LOCKYER, J. The Sun's Place in Nature. Nature 51, 590–592 (1895). https://doi.org/10.1038/051590a0
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DOI: https://doi.org/10.1038/051590a0