The geography of the heavens, and class-book of astronomy: (1858)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 328
y bodies, at the instantof their crossing themeridian. They areusually fixed upon ahorizontal axis, thatturns in a socket firmlyfixed in a north andsouth wall. The de-grees, minutes, and se-conds on the circle are read by means of microscopes, and indicate the altitude of theobject. * Li the cut, A… … 711. An astronomical clock? How set? How indicate right ascension of objects9712. Describe a mural circle ? Its uses ? How mounted ? How ascertain altitude andzenith distances by it? 328 ASTRONOMY. CHAPTER XX. PEOBLEMS AND TABLES. PROBLEM I. TO CONVERT DEGREES, ETC., INTO TIME. Rule I.—Divide the…
Constellations · Stars
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