Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York, H. Holt · leaf 260
a velocity that he moves from B to B during the time re- Fig 73quired for a ray of light to move from A to B\ Suppose also that the ray of light S A reaches A at the same time that the end of his rod does. Then it is clear that while the rod is moving from the position A B to the position A B, the… … 242 ASTRONOMY. ing the position b a, will be one third of the way from Ato B, and will therefore be accurately on the rod. Con-sequently, to the observer, the rod will appear to be point-ed at the star. In reality, however, the pointing will notbe in the true direction of the star, but will deviate…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
