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 149
ly the larger value, but this is due chiefly toiiradiation. Measures of a bright disk like that of the Moon or of one of theplanets are always a little in excess of the true values. An excellent illustrationof the irradiation effect is found in the appearance of the Moon three or fourdays after new… … PLATE XIX. Walled Plains on the (Sunset) Terminator. The upper, double walled plain, with triple central peak and a bright rillconnecting the peak and wall at the right is Petavius. Below isVendelinus. Note the small craters on the walls and floor of Ven-delinus. The Moox 89 plain or floor is lower…
Astronomy
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