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
... surface of the whole Earth , and are often seen for months together . Very rarely , no spots are visible . Dr. Herschel supposes that the Sun is surrounded by an at- mosphere of a phosphoric nature , composed of various , trans- parent ...
... surface of the whole Earth , and are often seen for months together . Very rarely , no spots are visible . Dr. Herschel supposes that the Sun is surrounded by an at- mosphere of a phosphoric nature , composed of various , trans- parent ...
Página 18
... surface of the moon is highly diver- sified by mountains , precipices and plains . The location of hundreds of these ... surface ? What is the height of its atmosphere ? What is Schroeter's estimate of the height of mountains and depth ...
... surface of the moon is highly diver- sified by mountains , precipices and plains . The location of hundreds of these ... surface ? What is the height of its atmosphere ? What is Schroeter's estimate of the height of mountains and depth ...
Página 51
... surface of the Earth ; then x V z will be the Moon's umbra , in which , no part of the Sun can be seen . The space comprehended between the umbra and xok and z P g , is called the penumbra , in which part of the Sun only is seen . Now ...
... surface of the Earth ; then x V z will be the Moon's umbra , in which , no part of the Sun can be seen . The space comprehended between the umbra and xok and z P g , is called the penumbra , in which part of the Sun only is seen . Now ...
Página 51
... surface of the earth ; then as the umbra reaches but to V , the space within cf will suffer an annular eclipse , and the Sun will appear on every side of the Moon in the form of a ring . The parts kc and fg will have a partial eclipse ...
... surface of the earth ; then as the umbra reaches but to V , the space within cf will suffer an annular eclipse , and the Sun will appear on every side of the Moon in the form of a ring . The parts kc and fg will have a partial eclipse ...
Página 59
... surface , for months . This portion of the Earth is called a fri- gid zone . One half of each year , the Sun's rays are excluded from almost 2310 , round the north pole , and the other half of the year , from the same extent round the ...
... surface , for months . This portion of the Earth is called a fri- gid zone . One half of each year , the Sun's rays are excluded from almost 2310 , round the north pole , and the other half of the year , from the same extent round the ...
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 ;