Physics
Scientific paper
Jan 1921
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1921natur.106..663s&link_type=abstract
Nature, Volume 106, Issue 2673, pp. 663 (1921).
Physics
Scientific paper
ABOUT thirty-five years ago Sir Norman Lockyer held that certain of the reddish stars are probably in an early stage of development. It was given out yesterday in Press dispatches from Chicago that Prof. Michelson had announced to the American Physical Society and the American Association for the Advancement of Science that the experiments with the Mount Wilson 8-ft. reflector at Pasadena, California, had enabled him successfully to measure the diameter of α Orionis by interference methods, and that the diameter is about 300,000,000 miles, or approximately three hundred times that of our sun. The volume of Betelgeux is therefore about 27,000,000 times that of the sun; so that, if concentric with the sun, the surface of Betelgeux would extend about to the orbit of Venus.
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