The American Tract Society's almanac for the year of Our Lord and Saviour Jesus Christ 1861 : being the first after bissextile, and until the fourth of July, the eighty-fifth year of the independence of the United States : calculated for Boston, New York, Washington, and Charleston, and four parallels of latitude, adapted for use througout the country . Encke, the venerable astronomer of Berlin, published a very complete dis-cussion of Olberss method together with Gausss formulas. Gauss and Encke have notessentially altered Olberss solution, but have given to it much elegance, and made itmore
The American Tract Society's almanac for the year of Our Lord and Saviour Jesus Christ 1861 : being the first after bissextile, and until the fourth of July, the eighty-fifth year of the independence of the United States : calculated for Boston, New York, Washington, and Charleston, and four parallels of latitude, adapted for use througout the country . Encke, the venerable astronomer of Berlin, published a very complete dis-cussion of Olberss method together with Gausss formulas. Gauss and Encke have notessentially altered Olberss solution, but have given to it much elegance, and made itmore suitable for logarithmic computation. In the form which they have given to it,there is hardly anything more to be desired. With three good observations, a practicedcomputer can, by this method, obtain in the short time of four or five hours, very goodapproximate elements of a comets orbit. These elements will enable him to predictvery nearly the future course of the comet, and will serve all the practical purposes offinding and observing it. If some of our students were to learn how to apply their mathematical knowledgeto the computation of a comets orbit, and thus see the use of it, the study of puremathematics mighi become more interesting, iu consideration of the extent and powerof its simplest principles. THE AMERICAN TRACT SOCIETYS THE PLANET SATUBIf. The planet Saturn has been known from the earliest ages. It appears to Use naked eyeas a star of the first magnitude. It has a very slow motion among the constellations, andthis circumstance led the ancient astronomers to place it at the extreme limits of our solarsystem, at a much greater distance from the Sun than Jupiter. The Hindoo names of thisplanet are sanaistchara, sani, and sauri. The first word signifies which movesslowly, from sanais, slowly, and tchara, which moves; the second word signifiesslow. Sauri is one of the names of the god Vishnu. According to heathen mythology,Saturn is the deity who presides
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Keywords: ., bookcentury1800, bookdecade186, booksubjectreligion, bookyear1861
