Lessons in astronomy including uranography. A brief intoductory course without mathematics (1896)
Young, Charles A. (Charles Augustus), 1834-1908 · Boston, London, Ginn and company · leaf 344
ess of his own motion,so that when the drop, which entered the tube at B, reaches A1, thebottom of the tube will be there also. It is true that this illustration is not a demonstration, because lightdoes not consist of particles coming towards us, but of waves trans-mitted through the ether of… … Fig. 98. — Aberration. 332 APPENDIX. [§ 435 The best observations show that a star situated on a line atright angles to the direction of the earths motion, is thusapparently displaced by ah angle of about 20.5. ThePulkowa observations give 20.493, while, according to New-comb, the mean of all other…
Astronomy
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