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 280
June 8, 1918, and on thefollowing night rivaled Sirius in brightness. The astronomers at the HarvardCollege Observatory photograph the entire sky on a systematic plan many timeseach year, and the plates thus secured form an invaluable photographic referencelibrary. An examination of the appropriate… … Fig. 1—In Orion (5^ 36.0^:—2° 27).
Astronomy
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
