Elements of Astronomy, Descriptive and Physical: In which the General Phenomena of the Heavenly Bodies and the Theory of the Tides are Familiarly Explained, and Illustrated by Numerous Diagrams from Engravings on Copper Plates ... Intended for Schools, Academies, Seminaries for Young Ladies, Lyceums, and for Private ReadingDorr, Howland, & Company, 1834 - 144 páginas |
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Página 13
... disc . That it moves towards the constellation Her- cules , is inferred from the divergency of stars in that direction , and the convergency of stars in the opposite direction . What description can be given of these spots ? What is ...
... disc . That it moves towards the constellation Her- cules , is inferred from the divergency of stars in that direction , and the convergency of stars in the opposite direction . What description can be given of these spots ? What is ...
Página 14
... disc . CHAPTER II . MERCURY . THE nearest planet to the Sun , is called Mercury . Its diameter is 3200 miles ; its density 9 times the density of water , and the amount of light enjoyed , 7 times as great as at the Earth . Its mean ...
... disc . CHAPTER II . MERCURY . THE nearest planet to the Sun , is called Mercury . Its diameter is 3200 miles ; its density 9 times the density of water , and the amount of light enjoyed , 7 times as great as at the Earth . Its mean ...
Página 15
... disc of the Sun. These would be transits . But as the orbit of Mercury inclines 7 degrees to the plane of the Ecliptic , transits can occur only at the nodes ; making from 12 to 14 such transits in each century . The last occurred in ...
... disc of the Sun. These would be transits . But as the orbit of Mercury inclines 7 degrees to the plane of the Ecliptic , transits can occur only at the nodes ; making from 12 to 14 such transits in each century . The last occurred in ...
Página 18
... disc , as viewed by the unaided eye . When examined by a telescope of high magnify- ing powers , the cause of this inequality becomes obvious . The surface of the moon is highly diver- sified by mountains , precipices and plains . The ...
... disc , as viewed by the unaided eye . When examined by a telescope of high magnify- ing powers , the cause of this inequality becomes obvious . The surface of the moon is highly diver- sified by mountains , precipices and plains . The ...
Página 22
... disc , when seen through a telescope , is diversified with alternate streaks of light and shade called belts ; as seen in Plate i . Figure 1 . These vary their size and position so rapidly , as to lead to the opinion , that they are ...
... disc , when seen through a telescope , is diversified with alternate streaks of light and shade called belts ; as seen in Plate i . Figure 1 . These vary their size and position so rapidly , as to lead to the opinion , that they are ...
Términos y frases comunes
95 millions A M Total ABERRATION OF LIGHT altitude angle annular annular eclipse aphelion apparent diameter Aries Astronomy atmosphere attraction brass meridian called Capricornus celestial centre century CHAPTER comets constellations degrees density disc Dominical letter double stars Earth's axis east elevated equal Equator fixed stars given place heavenly bodies heavens Herschel horizon Jupiter Latitude less longest Longitude luminary luminous lunar eclipses magnitude Mars material worlds mean distance Mercury miles the hour millions of miles minutes Moon's moral motion nearest nodes observed opposite orbit organs of vision parallax perihelion period planets pole primary reckoned refraction revolution revolves round right ascension rotation round the Sun satellites Saturn set the index siderial solar eclipse solstice southern hemisphere Sun's place supposed surface tance telescope thousand miles tides tion torrid zone transit of Venus true place turn the globe twilight velocity vernal equinox visible Zodiac
Pasajes populares
Página 108 - These are thy glorious works, Parent of good, Almighty, thine this universal frame, Thus wondrous fair; thyself how wondrous then ! Unspeakable, who sitt'st above these heavens, To us invisible, or dimly seen In these thy lowest works; yet these declare Thy goodness beyond thought, and power divine.
Página 140 - Behold I have given you every herb bearing seed, which is upon the face of all the earth, and every tree in the which is the fruit of a tree yielding seed, to you it shall be for meat.
Página 2 - BBOWN, of the said district, hath deposited in this office the title of a book, the right whereof he claims as author, in the words following, to wit : " Sertorius : or, the Roman Patriot.
Página 105 - Hitherto shalt thou come and no farther, and here shall thy proud waves be stayed.
Página 63 - evidence of things not seen," in the fulness of Divine grace ; and was profound on this, the greatest concern of human life, while unable even to comprehend how the " inclination of the earth's axis to the plane of its orbit" could be the cause of the change of the seasons.
Página 119 - Rectify the globe to the latitude of the place; bring the sun's place in the ecliptic to the meridian, and set the index to XII.
Página 26 - THERE is not, perhaps, another object in the heavens that presents us with such a variety of extraordinary phenomena as the planet Saturn. A magnificent globe, encompassed by a stupendous double ring, attended by seven satellites, ornamented with equatorial belts, compressed at the poles; turning...
Página 84 - The squares of the periods of revolution of any two planets are proportional to the cubes of their mean distances from the sun.
Página 69 - In northern Latitudes, the smallest angle made by the Ecliptic and horizon, is when Aries rises, at which time Libra sets ; the greatest, when Libra rises, at which time Aries sets.
Página 2 - In conformity to the act of Congress of the United States, entitled, " An act for the encouragement of learning, by securing the copies of maps, charts and books, to the authors and proprietors of such copies, during the times therein mentioned ;