“The” New American Grammar Of The Elements Of Astronomy, On An Improved Plan: In Three Books. I. The Use Of The Terrestrial Globe In The Solution Of Geographical And Astronomical Problems II. The Use Of The Celestial Globe ... III. The Solar System, And The Firmament Of Fixed Stars ; The Whole Systematically Arranged and Scientifically Illustrated ; With Severeal Cuts And Engravings ; And Adapted To The Instruction Of Youth In Schools And AcademiesCollins And Hannay. No. 230 Pearl-street, 1831 - 375 pages |
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Page 2
... equal , the surface is called a circle . A circle is usually described with a pair of compasses ; one point of which ... equal parts , called degrees ; and of which the symbol is 12 ° or 70 , if 12 or 7 be their number . Each ...
... equal , the surface is called a circle . A circle is usually described with a pair of compasses ; one point of which ... equal parts , called degrees ; and of which the symbol is 12 ° or 70 , if 12 or 7 be their number . Each ...
Page 3
... equal to one - seventh of the circumference ABDEFA , AB = 3600 divided by 7 , equal to 51 ° 25′42 " F + × 1 " , which is read 51 degrees 25 A B minutes 42 seconds plus six - seventh of one second . 17. An angle subtended by the fourth ...
... equal to one - seventh of the circumference ABDEFA , AB = 3600 divided by 7 , equal to 51 ° 25′42 " F + × 1 " , which is read 51 degrees 25 A B minutes 42 seconds plus six - seventh of one second . 17. An angle subtended by the fourth ...
Page 4
... equal parts or seconds . So that a French degree is less than an American , in the proportion of 90 to 100 ; a ... equals - , which form points to an easy arithmetical operation for finding the number of degrees in the American ...
... equal parts or seconds . So that a French degree is less than an American , in the proportion of 90 to 100 ; a ... equals - , which form points to an easy arithmetical operation for finding the number of degrees in the American ...
Page 7
... diversity of seasons ? CHAPTER II . Of the great circles on the terrestrial globe . 1. Circles which divide a globe into two equal parts , are called great circles . 2. The pole of any great circle is a point OF THE TERRESTRIAL GLOBE . 7 ...
... diversity of seasons ? CHAPTER II . Of the great circles on the terrestrial globe . 1. Circles which divide a globe into two equal parts , are called great circles . 2. The pole of any great circle is a point OF THE TERRESTRIAL GLOBE . 7 ...
Page 8
... equal parts , are the equator , the ecliptic , and the meridians . 4. The equator is a great circle of the earth , equidistant from the poles , and divides the globe into two hemispheres , called the northern and southern . The ...
... equal parts , are the equator , the ecliptic , and the meridians . 4. The equator is a great circle of the earth , equidistant from the poles , and divides the globe into two hemispheres , called the northern and southern . The ...
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Common terms and phrases
American miles analemma angle aphelion apparent diameter appear Arcturus Aries astronomers axis azimuth body brazen meridian bring the given called celestial globe centre climate comet constellation days and nights difference diurnal motion earth east ecliptic equal equator equinoctial point equinox fixed stars given place globe westward greatest heavens heliacally hemisphere Hence Herschel horizon hour circle inferior conjunction inferior planets inhabitants Jupiter latitude length longest day longitude Mars mean distance Mercury meridian altitude minutes moon nearly New-York node noon north or south north pole number of degrees o'clock oblique observed orbit parallax parallel of latitude passing perihelion polar circles principal stars Prob quadrant of altitude Rectify the globe remarkable stars retrograde revolution right ascension rising and setting satellites Saturn set the index sidereal solar south pole sun's declination sun's place superior planet supposed surface telescope terrestrial globe tion tude turn the globe twilight Venus zenith zone