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 213
71 d t* 72 ^RiBfJK W.^wf … CHANGES AMONG THE SOLAR SPOTS 205 consequently the length of the spots and penumbra was41,900 miles, its breadth 16,300, and its area 6,829,700,000,square miles, which would afford room for ten globes as largeas the earth to be placed upon it. It consisted of a dark spot ofa longish form, about…
Astronomy
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