The geography of the heavens, and class-book of astronomy: accompanied by a celestial atlas (1873)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868, ed, Whitall, Henry, 1819-1887? Celestial planisphere · New York, Sheldon & company · leaf 335
at theinstant of their Grossing the meridian. They nre usually fixed upon a horizontal axis,tl.at turns in a socket firmly fixed in a north and south wall. The decree*, minutes,(Hid seconds on the circle are read by means of microscopes, and indicate the altitudeot the object The Mural Circle and a… … 328 ASTRONOMY. 2. The old Mural Circle is now being rapidly superseded by the Meridian Circlt lathe best observatories. 706. A Comet Seeker is a re- ▲ comet seeker.fracting telescope with a largeaperture and short focal distance.As comets cannot be found bytheir right ascension and declina-tion,…
Constellations · Stars
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