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 (1919)
Astronomical Society of the Pacific, Aitken, Robert Grant, 1864-1951 · San Francisco Stanford University Press · leaf 241
\ ,,.^i%j:^-.^- … (b) Vortical streaming of the hydrogen in the same region.Spectroheliogram. 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,…
Astronomy
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