“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 6
... passing through its centre , and upon which it is supposed to revolve . 6. The poles of the earth are the extremities of its axis at the earth's surface ; one of which is called the north pole , and the other the south pole . If the ...
... passing through its centre , and upon which it is supposed to revolve . 6. The poles of the earth are the extremities of its axis at the earth's surface ; one of which is called the north pole , and the other the south pole . If the ...
Page 9
... passing through the poles , and cutting the equator at right angles . Every place upon the earth is supposed to have a meri- dian passing through it , though , to prevent confusion , there are , in general , only twelve drawn on the ...
... passing through the poles , and cutting the equator at right angles . Every place upon the earth is supposed to have a meri- dian passing through it , though , to prevent confusion , there are , in general , only twelve drawn on the ...
Page 14
... passing through the centre of the earth , pa- rallel to the sensible horizon . The rational horizon determines the rising of the sun , stars , and planets . 5. The wooden horizon , circumscribing the ter- restrial globe , represents the ...
... passing through the centre of the earth , pa- rallel to the sensible horizon . The rational horizon determines the rising of the sun , stars , and planets . 5. The wooden horizon , circumscribing the ter- restrial globe , represents the ...
Page 18
... passing through the zenith and nadir , and cutting the horizon at right angles . The altitudes of the heavenly ... passing through the north and south points of the horizon . 8. The azimuth of any object in the heavens is an arc of ...
... passing through the zenith and nadir , and cutting the horizon at right angles . The altitudes of the heavenly ... passing through the north and south points of the horizon . 8. The azimuth of any object in the heavens is an arc of ...
Page 32
... passing from any fixed star , till it returns to the same again . This period is called the sidereal year . Hence , the sidereal year is 20 minutes and 20 seconds longer than a tropical year ; and it likewise follows that the ...
... passing from any fixed star , till it returns to the same again . This period is called the sidereal year . Hence , the sidereal year is 20 minutes and 20 seconds longer than a tropical year ; and it likewise follows that 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