Jones, H. Spencer (Harold Spencer), 1890- · London E. Arnold & co. · leaf 77
at timewere believed to be much nearer than we now know them to be.Bradley argued that if a star is at not too great a distance itshould show an appreciable annual motion in the sky, and thenearer the star, the larger would be this motion. In fact, if acone is formed with its vertex at the star and… … THE EARTH IN RELATION TO THE SUN 65 great). The star should therefore appear to describe in thesky an ellipse of small angular diameter, the shape of thisellipse being similar to the projection of the Earths orbit onthe tangent plane to the celestial sphere at the point where theradius to the star…
Astronomy
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