“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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Results 1-5 of 98
Page 1
... orbits which they describe , is called plane or pure Astrono- my ; and the investigations of the causes of their motions , is called physical Astronomy . 2. All bodies are necessarily extended , and there- fore are found existing under ...
... orbits which they describe , is called plane or pure Astrono- my ; and the investigations of the causes of their motions , is called physical Astronomy . 2. All bodies are necessarily extended , and there- fore are found existing under ...
Page 28
... and the unequal motion of the earth in an elliptical orbit . The ef- fects of both these causes shall be fully considered in a subse ont part of this work . 5. The civil day is from midnight to midnight again 28 GRAMMAR OF ASTRONOMY .
... and the unequal motion of the earth in an elliptical orbit . The ef- fects of both these causes shall be fully considered in a subse ont part of this work . 5. The civil day is from midnight to midnight again 28 GRAMMAR OF ASTRONOMY .
Page 29
... orbit . But this is not the case with respect to the sun ; for as the earth , at a mean daily motion , advances 59 ′ 8.2 " eastward in its orbit , and that its diurnal motion is also eastward , it is evident that the same meridian can ...
... orbit . But this is not the case with respect to the sun ; for as the earth , at a mean daily motion , advances 59 ′ 8.2 " eastward in its orbit , and that its diurnal motion is also eastward , it is evident that the same meridian can ...
Page 30
... orbit . As year denoted originally a revolution , and was not limited to that of the sun ; accordingly , we find by the oldest accounts , that people have , at different times , expressed other revolutions by it , particularly that of ...
... orbit . As year denoted originally a revolution , and was not limited to that of the sun ; accordingly , we find by the oldest accounts , that people have , at different times , expressed other revolutions by it , particularly that of ...
Page 87
... orbit , or , which amounts to the same thing , if the plane of the earth's orbit coincided with the plane of the equator , the days would , at all times , be equal to the nights al ' over the world , except at the poles , where the sun ...
... orbit , or , which amounts to the same thing , if the plane of the earth's orbit coincided with the plane of the equator , the days would , at all times , be equal to the nights al ' over the world , except at the poles , where the sun ...
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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