Stars and telescopes; a hand-book of popular astronomy founded on the 9th ed. of Lynn's Celestial motions (1901)
Todd, David P. (David Peck), 1855-1939, Lynn, William Thynne, 1835-1911 · Boston, Little, Brown · leaf 76
constantterm in the equation (if light. Also there is an aberration ofthe planets due to their orbital motions in space. Suppose ourglobe to be at rest in its orbit ; the aberration of light wouldthen vanish. But as a planet is always seen from the Earth inthe direction where it actually was when… … ROMER (1644-1710) 46 Stars and Telescopes this, it occurred to him that the Earths motion roundthe Sun would lead to an effect of this kind whencombined with the gradual propagation of light asdiscovered by Romer. Calculation confirmed this conjecture ; and the ab-erration of light (asthis…
Astronomy
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