A compendium of astronomy; containing the elements of the science, familiarly explained and illustrated, with the latest discoveries. Adapted to the use of schools and academies, and of the general reader (1850)
Olmsted, Denison, 1791-1859 · New York, R. B. Collins · leaf 197
d rising about the timethe sun sets, surprises us by his magnitude and splen-dor ; but when he passes to the other side of the sun tohis superior conjunction, he dwindles to the appearanceof a small star, being then 237,000,000 miles from us.Thus, let M (Fig. 42,) represent Mars in opposition,and M… … 235. Mars is the only one of the superior planetswhich exhibits phases. When he is towards the quad-ratures at Q or Q, it is evident from the figure thatonly a part of the circle of illumination is turned towards MARS. 185 the earth, such a portion of the remoter part of it beingconcealed from our…
Astronomy
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