“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 5
... axis or conju- gate diameter , ) shall be explained in a subsequent part of this work ; but here the figure of the earth is supposed to be a perfect sphere , since there is no other figure which can give so exact an idea of its true ...
... axis or conju- gate diameter , ) shall be explained in a subsequent part of this work ; but here the figure of the earth is supposed to be a perfect sphere , since there is no other figure which can give so exact an idea of its true ...
Page 6
... axis of the earth is an imaginary straight line 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 ...
... axis of the earth is an imaginary straight line 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 ...
Page 7
... axis of the artificial globe , and what does the revolution of the globe on this axis show ? What is the occasion of day and night ? What is the cause of the beautiful diversity of seasons ? CHAPTER II . Of the great circles on the ...
... axis of the artificial globe , and what does the revolution of the globe on this axis show ? What is the occasion of day and night ? What is the cause of the beautiful diversity of seasons ? CHAPTER II . Of the great circles on the ...
Page 29
... axis , is called a sidereal day , which is twenty - three hours , fifty - six minutes , four and one - tenth seconds of mean solar time . A sidereal day is , therefore , less than a mean solar day , by 3 minutes 55.9 seconds . This ...
... axis , is called a sidereal day , which is twenty - three hours , fifty - six minutes , four and one - tenth seconds of mean solar time . A sidereal day is , therefore , less than a mean solar day , by 3 minutes 55.9 seconds . This ...
Page 36
... axis , turn quite round to all points of the compass , without disappearing . For as the sun does not set to the inhabitants of the frigid zones during several revolutions of the earth on its axis , but moves quite round ; so do their ...
... axis , turn quite round to all points of the compass , without disappearing . For as the sun does not set to the inhabitants of the frigid zones during several revolutions of the earth on its axis , but moves quite round ; so do their ...
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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