The pith of astronomy <without mathematics>; the latest facts and figures as developed by the giant telescopes; (1896)
Bayne, Samuel G. (Samuel Gamble), 1844-1924 · New York, Harper & brothers · leaf 68
ensity and size are less than ours;a man weighing 200 pounds here wouldweigh but 75 pounds on Mars. The orbit of this planet is decided-ly elliptical; it is 26,000,000 milesnearer the sun at the nearest part ofits orbit than it is at the farthest, con-sequently the variation in heat fromthis cause… … OBSERVATIONS OF MARS SHOWING ITS CHANGES MARS 37 both its poles, and produce great whitepatches at those points, which are clear-ly seen through a large telescope; suchan instrument also shows the markingson the land known as the canals. Fairlyaccurate maps have been made of Mars,showing its…
Astronomy
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