Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 245
Fig. 141.—Dimensions of the Shadow of the Earth. That is, I is expressed in terms of known quantities, and thus isknown. Its length is about 866,000 miles. … Fig. 142.-^45 is the Ecliptic ; OB is the Moons Orbit. The three dark circles on AB are three positions of the Earths shadow.Sometimes the Moon is totally eclipsed as at G, sometimes partiallyeclipsed as at F, sometimes she just escapes eclipse as at E. Eclipses of the Moon.—The mean distance of…
Astronomy
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