Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 106
MY. 89 The distance and apparent size of the moon being known,her real diameter is found by means of a triangle formed asshown in Fig. 105. C represents the centre of the moon, CBthe distance of the moon from the earth, and CA the radius ofthe moon. B A C is a triangle, right-angled at A. The… … Fig. 105. The volume of the moon is about one-fiftieth of that ofthe earth. 90. Apparent Size of the Moon on the Horizon and inthe Zenith. — The moon is nearly four thousand miles far-ther from the observer when she is on the horizon thanwhen she is in the zenith. This is evident from Fig. 106.C is…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-201-122.webp)
