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 93
ame orbit. 48 The Adolfo Stahl Lectures The so-called Lyra meteors are visible atout x\pril 20 eachyear. It was noticed in 1867 by Weiss that the orbit of theLyra meteors is essentially identical with that of Comet 18611. Bielas comet, to which we have referred, when last seen in1852, as a double… … Fig. 4. Orbits of Meteoric Swarms, which are known to beassociated with comets. Not to dwell upon the remarkable identities of the orbitsof the four meteor swarms, respectively, with the orbits of thefour comets (Fig-. 4), two of which have disappeared, andthe other two, of relatively long periods,…
Astronomy
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