A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1859)
Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 92
or evening, thedifferent rays of which it is composed are separated, and the red rays only pass to tho 172. Usual appearance of Mars ? When brightest, and why ? Apparentdiameter ? Cause of great variation ? Phases ? Herschels remark ? Spotat north pole ? 178. Supposed causes of his color f (Note.)… … 1. The right-hand figure represents Mars as seen at the Cincinnati Observatory,August 5,1845. On the 30th of the same month he appeared as represented on the left.The middle mew is from a drawing by Dr. Dick. 2. Just east of the Seven Stars, or Pleiades, the student will find another groupcalled…
Astronomy
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