A Compendium of Astronomy: Intended to Simplify and Illustrate the Principles of the Science, and Give a Concise View of the Motions and Aspects of the Great Heavenly Luminaries ; Adapted to the Use of Common Schools, as Well as Higher Seminaries |
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Page 10
Disk of the Sun or a planet , the hemisphere presented to an observer ,
appearing like a plain circle . Eccentricity , the distance in a planet's orbit
between one of the foci and the centre . Eclipse , a partial or total obscuration of a
heavenly body .
Disk of the Sun or a planet , the hemisphere presented to an observer ,
appearing like a plain circle . Eccentricity , the distance in a planet's orbit
between one of the foci and the centre . Eclipse , a partial or total obscuration of a
heavenly body .
Page 29
He discovered several mountains in this planet , and found that , like those of the
Moon , they were always highest in the southern hemisphere ; their
perpendicular heights being nearly as the diameters of their respective planets .
From the ...
He discovered several mountains in this planet , and found that , like those of the
Moon , they were always highest in the southern hemisphere ; their
perpendicular heights being nearly as the diameters of their respective planets .
From the ...
Page 45
the time when the northern and southern hemispheres enjoyed summers and
winters of equal length , the earth being in the aphelion of ... The ascendency
thus gained in the northern hemisphere continued to increase till about the year
1255.
the time when the northern and southern hemispheres enjoyed summers and
winters of equal length , the earth being in the aphelion of ... The ascendency
thus gained in the northern hemisphere continued to increase till about the year
1255.
Page 46
northern hemisphere . But at the time of our winter , the rays of the Sun fall
obliquely ; in high latitudes , very obliquely in winter . Of course a much less
number light upon any given space , as a square mile , or any number of square
miles ...
northern hemisphere . But at the time of our winter , the rays of the Sun fall
obliquely ; in high latitudes , very obliquely in winter . Of course a much less
number light upon any given space , as a square mile , or any number of square
miles ...
Page 51
The other hemisphere has alternate light and darkness in succession , each
continuing about 14 days . The Moon , like the other planets , is opaque , shining
only by the reflected light of the Sun. The side of the Moon which is next to the
Sun is ...
The other hemisphere has alternate light and darkness in succession , each
continuing about 14 days . The Moon , like the other planets , is opaque , shining
only by the reflected light of the Sun. The side of the Moon which is next to the
Sun is ...
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A Compendium of Astronomy; Intended to Simplify and Illustrate the ... John Vose No preview available - 2011 |
Common terms and phrases
according ancient angle aphelion appear astronomers atmosphere attraction authors axis begins called cause centre century circle clock comets commence common computed conjunction considered continued dark declination diameter direction discovered disk distance Earth east eclipses elevated equal equator equinox figure force four given globe greatest half heat heavenly body heavens hemisphere Herschel horizon hour inclination inhabitants Jupiter known latitude less letter light longitude luminous lunar magnitude Mars mean Mercury meridian miles month Moon Moon's motion move nearly night node object obliquity observed opposite orbit parallax passing period planets Plate poles position present rays refraction represented respecting revolution revolve ring rising rotation round satellites Saturn seasons seconds seen shadow side slow solar stars Sun's supposed surface tides tion true turned United Venus visible whole
Popular passages
Page 158 - our astronomical observer" at a salary of £100 per annum, his duty being "forthwith to apply himself with the most exact care and diligence to the rectifying the tables of the motions of the heavens and the places of the fixed stars, so as to find out the so much desired longitude of places for the perfecting the art of navigation.
Page 171 - I was called up," says Mr. Ellicou, " about 3 o'clock in the morning, to see the shooting stars, as they are called. The phenomenon was grand and awful. The whole heavens appeared as if illuminated with skyrockets, which disappeared only by the light of the sun, after daybreak. The meteors, which at any one instant of time, appeared as numerous as the stars, flew in all possible directions...
Page 160 - ... that, situated as we are in this western hemisphere, more than three thousand miles from any fixed or known meridian, it would be proper, in a national point of view to establish a first meridian for ourselves ; and that measures should be taken for the eventual establishment of such a meridian in the United States. In examining the maps and charts of the United States, and the particular states, or their sea coasts, which have been published in this country, the committee find, that the publishers...
Page 130 - AG F E D CB A G F ED C B A 1100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24...
Page 126 - Thirty days hath September, April, June, and November, All the rest have thirty-one Excepting February alone : Which hath but twenty-eight, in fine, Till leap year gives it twenty-nine.
Page 149 - That the milky way is a most extensive stratum of stars of various sizes admits no longer of the least doubt; and that our sun is actually one of the heavenly bodies belonging to it is as evident.
Page 170 - Towards the morning of the 13th of November, 1799, we witnessed a most extraordinary scene of shooting meteors. Thousands of bodies and falling stars succeeded each other during four hours. Their direction was very regular from north to south. From the beginning of the phenomenon there was not a space in the firmament equal in extent to three diameters of the moon which was not filled every instant with bodies or falling stars. All the meteors left luminous traces or phosphorescent bands behind them,...
Page 53 - Huge massess of rock rise at once from the plains, and raise their peaked summits to an immense height in the air, while projecting crags spring from their rugged flanks and threatening the valleys below, seem to bid defiance to the laws of gravitation. Around the base of these frightful eminences are strewed numerous loose and unconnected fragments, which time seems to have detached from their parent mass ; and when we examine the rents and ravines which accompany the over.hanging cliffs, we expect...
Page 83 - The atmosphere is known to abound with electric matter, and the appearance of the electric matter in vacuo is exactly like the appearance of the aurora borealis, which, from its great altitude, may be considered to be in as perfect a vacuum as we can make. The electric matter in vacuo suffers the rays of light to pass through, without being affected by them. The tail of a comet does not expand itself sideways, nor does the electric matter. Hence, he supposes the tails of comets, the aurora borealis,...
Page 72 - ... 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...
Bibliographic information
| Title | A Compendium of Astronomy: Intended to Simplify and Illustrate the Principles of the Science, and Give a Concise View of the Motions and Aspects of the Great Heavenly Luminaries ; Adapted to the Use of Common Schools, as Well as Higher Seminaries |
| Author | John Vose |
| Publisher | Carter, Hendee & Company, 1834 |
| Original from | Harvard University |
| Digitized | 8 Mar 2007 |
| Length | 184 pages |
| Export Citation | BiBTeX EndNote RefMan |