Celestial scenery, or, The Wonders of the planetary system displayed : illustrating the perfections of deity and a plurality of worlds (1845)
Dick, Thomas, 1774-1857, Parker, E. S., former owner. DSI, David H. DeVorkin Collection (Smithsonian Institution. Libraries) DSI · Philadelphia : Published by Edward C. Biddle · leaf 129
nd December, 1832, and in January,1837, and the appearances were very nearly the same; butthe spots as represented in the two figures were seen atdifferent times, and were evidently on different hemispheresof the planet, which were presented in succession by itsmotion of rotation. The instrument… … portion of the globe of Mars, round its south pole, whichhas, at least occasionally, a much brighter appearance thanthe other parts. Maraldi, who made observations on Marsabout the year 1719, says that this bright spot had been no-ticed for sixty years before that period, and that it is…
Astronomy
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