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Trumpler, Robert Julius (b. Oct. 2, 1886, Zürich—d. Sept. 10, 1956, Berkeley,
Calif.), astronomer who, in his extensive studies of galactic star clusters,
demonstrated the presence throughout the galactic plane of a tenuous haze of
In both the Tychonic and Ptolemaic systems an outer sphere containing the fixed
stars was considered to revolve every day around the Earth. The Tychonic theory
explained the observed variations of phase of Venus, for which the Ptolemaic ...
The quadrilateral formed by the four stars—Alpha, Beta, Gamma, and Delta—was
termed Na'sh (a bier) by the Arabs; hence it is sometimes known as Feretrum
Majus (Great Bier). The Arabic name should probably be identified with the ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review