Mitton, G. E. (Geraldine Edith) · London, A. and C. Black · leaf 88
infinitely small in regard to the space betweenthem that there is no possibihty of any one of themgetting in such a position that it would throw ashadow on any other or eclipse it. The planets arelike specks in space, and could not interfere withone another in this way. When Mars, therefore,is in a… … ORBITS OF THE EARTH AND MARS. Look at the illustration and remember that Marsyear is not quite two of ours—that is to say, everytime we swing round our orbit we catch him 64 THE CHILDRENS BOOK OF STARS up in a different place, for he will have progressedless than half his orbit while we go right…
Astronomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
