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 352
It is remark-able and undoubtedly a significant fact in the history of a starsdevelopment that objects having similar spectra should difterso greatly in absolute luminosity as do the giants and dwarfs.The similarity of spectrum and color means that the surfacetemperature, and hence the amount of… … PLATE XLIX. Star Clouds and Vacant Lanes Near 0 Ophiuchi. From a photograph -nith the Bruce telescope, by E. E. Barnard. The Brightness of the Stars 233 be attributed to difterences in their linear dimensions. Toradiate more light, the giants must be larger than the dwarfs;and that their surfaces…
Astronomy
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
