. The Adolfo Stahl lectures in astronomy, delivered in San Francisco, California, in 1916-17 and 1917-18, under the auspices of the Astronomical Society of the Pacific. \ ,,.^i%j:^-.^-. (b) Vortical streaming of the hydrogen in the same PLATE XXXVII. Solar Observatory Photographs. Our Nearest Star, the Sun 145 of the spectrum reproduced. Here also the central strip isfrom the east edge of the Suns disk and the Hues of solar originare displaced to the left, that is, toward the violet. Another application of the Doppler effect is the study ofthe currents in the solar atm
. The Adolfo Stahl lectures in astronomy, delivered in San Francisco, California, in 1916-17 and 1917-18, under the auspices of the Astronomical Society of the Pacific. \ ,,.^i%j:^-.^-. (b) Vortical streaming of the hydrogen in the same PLATE XXXVII. Solar Observatory Photographs. Our Nearest Star, the Sun 145 of the spectrum reproduced. Here also the central strip isfrom the east edge of the Suns disk and the Hues of solar originare displaced to the left, that is, toward the violet. Another application of the Doppler effect is the study ofthe currents in the solar atmosphere around sun-spots. It isfound that in the lower levels of the Suns atmosphere theflow from spots is outward along the Suns surface, andinward for the higher-lying vapors which are rushing intospots with tremendous cyclonic whirls. Since the Sun is aglobe, the flow outward from a spot near the Suns limb istoward the observer on the near, and from the observer onthe far, side of the spot. In Fig. 4, Plate XXXVI, the spectra from the two sides ofa spot are shown juxtaposed. Along the line of juxtapositionthe lines in the spectrum from the near side are displaced tothe violet
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectastronomy, bookyear19
