Lockyer, Norman, Sir, 1836-1920 · London : Macmillan and Co. · leaf 94
gs are ellipses. It is seen atonce that one is very like the circle, and the other unlike it.The points D E and F G are called the foci of the twoellipses, and the shape of the ellipse depends upon thedistance these points are apart. We can see this for THE SOLAR SYSTEM. ifl ourselves if we stick… … Fi^. 6.—Showino; the difference between a cfifcle and ellipses of dlffereru cccclllriciuc^, and liow thi.y are constnicled. pencil will draw an ellipse, the shape of which we ma\vaiy at pleasure (using the same loop) by altering thedistance between \.\\Q/oci. 167. Now the Sun does not occupy the…
Astronomy · Solar system
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