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 Reading |
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Page 43
... vernal equinox , the 20th of March , or the beginning of the sign Aries . Besides , it is reck- oned only east , and that quite round the heavens , making 360 ° . The longitude of celestial bodies . is , therefore , always to be ...
... vernal equinox , the 20th of March , or the beginning of the sign Aries . Besides , it is reck- oned only east , and that quite round the heavens , making 360 ° . The longitude of celestial bodies . is , therefore , always to be ...
Page 58
... vernal equinox in March , till about the 20th of June , which is called the summer solstice , the Sun appears to advance to the north still at the Equator the Sun will be twelve hours above , and 12 hours below the horizon . But north ...
... vernal equinox in March , till about the 20th of June , which is called the summer solstice , the Sun appears to advance to the north still at the Equator the Sun will be twelve hours above , and 12 hours below the horizon . But north ...
Page 61
... vernal equinox , the 20th of March , are called winter signs . Warmth from the Sun is in proportion to the density of the at- mosphere , to the directness of the Sun's rays , and to the time of its continuance above the horizon ...
... vernal equinox , the 20th of March , are called winter signs . Warmth from the Sun is in proportion to the density of the at- mosphere , to the directness of the Sun's rays , and to the time of its continuance above the horizon ...
Page 62
... vernal equinox and the autumnal ; and the autumnal equi- nox and the vernal . Why is it not probable , that Adam , at the time of the autumnal equinox , first opened his eyes on the ma- tured fruits of the northern hemisphere , in which ...
... vernal equinox and the autumnal ; and the autumnal equi- nox and the vernal . Why is it not probable , that Adam , at the time of the autumnal equinox , first opened his eyes on the ma- tured fruits of the northern hemisphere , in which ...
Page 63
... vernal equinox to another is 365d . 5h . 48 ′ 49 ′′ . This is called a solar year . The cause of this varia- tion , will be assigned under the head of the sion of the equinoxes . * preces- Were a clock so regulated , that from the 15th ...
... vernal equinox to another is 365d . 5h . 48 ′ 49 ′′ . This is called a solar year . The cause of this varia- tion , will be assigned under the head of the sion of the equinoxes . * preces- Were a clock so regulated , that from the 15th ...
Common terms and phrases
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
Popular passages
Page 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.
Page 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.
Page 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.
Page 105 - Hitherto shalt thou come and no farther, and here shall thy proud waves be stayed.
Page 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.
Page 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.
Page 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...
Page 84 - The squares of the periods of revolution of any two planets are proportional to the cubes of their mean distances from the sun.
Page 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.
Page 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 ;