The geography of the heavens and classbook of astronomy; (1863)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868, Whitall, Henry, 1819-1887? Celestial planisphere. [from old catalog] · New York, Mason brothers; Boston, Mason & Hamlin; [etc., etc.] · leaf 203
th ofJune to the 1st of Septem-ber, the clock is faster thanthe sun-dial; and that, from the 16th of April to the 16th of June, and from the 1st of September to the 25th of Dec,the sun-dial is faster than the clock. 398. It is an universal fact, that, while none of the planets areperfect spheres,… … The figure A D B E is an ellipse. The line A B iscalled the transverse axis, and the line drawn throughthe middle of this line, and perpendicular to it, is theconjugate axis. The point C, the middle of the trans-verse axis, is the center of the ellipse. The pointsF and f, equally distant from C,…
Constellations · Stars
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