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 144
Plate XVII, Copernicus is the great crater a little to the right and belowthe center of the illuminated disk. Note the complicated system of ridges andbright streaks radiating from it. The prominent crater near the top of the photo-graph is Tycho. Bright streaks radiating from it are also visible,… … i2^A<.
Astronomy
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
