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 121
int of observation. Thisline marks off the part of the moon turned towards O. Whenthe moon is in the zenith. CD coincides with AB: but. whenthe moon is on the horizon. CD is inclined to AB. When themoon is on the eastern horizon, an observer at 0 sees a littlebeyond B. and not quite to A; and. when… … ASTRONOMY. I05 is viewed, it is called parallactic libration : and. since it occursdaily, it is called diurnal libration. 107. Portion of the Lunar Surface brought into View byLibration. — The area brought into view by the first two libra-tions is between one-twelfth and one-thirteenth of the…
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-401-278.webp)
