List, C, Hall, T. G. (Thomas Grainger), 1803-1881 · Philadelphia : Thomas Cowperthwait & Co. and Carey & Hart · leaf 40
y would extendmore than 200,000 miles beyond the orbit of themoon. Again, a man travelling at the rate ofone hundred miles a day, would be able to goround the earth in rather less than three quartersof a year; but it would require seventy-five yearsto travel round the suns equator with the… … View of the Spots in the Sun. served on the surface of the sun, which are foundto cross it from east to west in fourteen days. Their number, position, and magnitude are ex-tremely variable. Some have been observed whosediameter was more than fifty thousand miles. Sometimes, however, though but…
Astronomy
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