Astronomical and geographical essaysW. & S. Jones, 1812 - 518 pages |
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Page xiii
... Night at any time of the Year .... 11. To find the length of the longest or shortest Day , at any Place upon the Earth ..... 309 ibid . 310 12. To find all those inhabitants to whom the Sun is this mo- ment rising or setting , in their ...
... Night at any time of the Year .... 11. To find the length of the longest or shortest Day , at any Place upon the Earth ..... 309 ibid . 310 12. To find all those inhabitants to whom the Sun is this mo- ment rising or setting , in their ...
Page xiv
... Altitude and Azimuth of a Star being given ... ... 351 352 the Altitude and Azimuth of a Star , & c ... the Azimuth , & c . at any Hour of the Night .... 353 PROB . 27. To find the Sun's Altitude , and xiv CONTENTS .
... Altitude and Azimuth of a Star being given ... ... 351 352 the Altitude and Azimuth of a Star , & c ... the Azimuth , & c . at any Hour of the Night .... 353 PROB . 27. To find the Sun's Altitude , and xiv CONTENTS .
Page 3
... night . Now , if in this case we suppose the darkness to be so complete , that no intermediate objects could be seen , no difference in colour discerned , nor any convergence towards the point of A 2 A VIEW OF THE SOLAR SYSTEM . Of the ...
... night . Now , if in this case we suppose the darkness to be so complete , that no intermediate objects could be seen , no difference in colour discerned , nor any convergence towards the point of A 2 A VIEW OF THE SOLAR SYSTEM . Of the ...
Page 7
... night , when the air is clear , and no moon appears . even then a good eye can scarce distinguish more than one thousand at a time in the visible hemis- phere : for , though , on such a night , they appear to be almost innumerable ...
... night , when the air is clear , and no moon appears . even then a good eye can scarce distinguish more than one thousand at a time in the visible hemis- phere : for , though , on such a night , they appear to be almost innumerable ...
Page 17
... nights , and the vicissitudes of the seasons . As the knowledge of the sun's apparent motion is of great importance , and a proper conception of it absolutely necessary , in order to form a true idea of the phenomena of the heavens the ...
... nights , and the vicissitudes of the seasons . As the knowledge of the sun's apparent motion is of great importance , and a proper conception of it absolutely necessary , in order to form a true idea of the phenomena of the heavens the ...
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Other editions - View all
ASTRONOMICAL & GEOGRAPHICAL ES George 1750-1795 Adams,William 1763-1831 Jones No preview available - 2016 |
ASTRONOMICAL & GEOGRAPHICAL ES George 1750-1795 Adams,William 1763-1831 Jones No preview available - 2016 |
Common terms and phrases
angle apparent motion Aries astronomers azimuth body bright bring broad paper circle called Capricorn celestial globe centre comet conjunction dark dial diameter disc distance diurnal motion earth ecliptic edge elevated enlightened equal equator equinoctial equinox fixed stars Georgium Sidus given place greatest elongation heavens hemisphere Herschel horary index hour circle hour-lines illuminated inferior planets inhabitants Jupiter latitude light London longest day longitude magnitude Mars Mercury miles minutes month moon moon's nearer night nodes noon north pole number of degrees observed opposite parallax parallel pass plate polar circle PROBLEM quadrant of altitude rays Rectify the globe retrograde retrograde motion revolution right ascension round the sun satellites Saturn seen semicircle shadow shew ship situation solar spectator sphere strong brass meridian sun appears sun's place superior planet suppose surface telescope terrestrial globe tion tropic tropic of Cancer turn the globe Venus vertical visible west to east zenith
Popular passages
Page 72 - Their names are Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricornus, Aquarius, Pisces; the whole occupying a complete circle, or broad belt, in the heavens, called the Zodiac.
Page 226 - If both the places be situated on the same parallel of latitude, their bearing is either east or west from each other ; if the'y be situated on the same meridian, they bear north and south from each other ; if they be situated on the same rhumb-line, that rhumbline is their bearing : if they be not situated on the same rhumb-line, lay the quadrant of altitude over the. two places, and that rhumb-line which is the nearest of...
Page 54 - Our views of Nature, however imperfect, serve to represent to us, in the most sensible manner, that mighty power which prevails throughout, acting with a force and efficacy that appears to suffer no diminution from the greatest distances of space or intervals of time...
Page 199 - To make this circle answer the purpose, a semicircular wire is placed over it, carrying two indices, one on the east, the other on the west side of the strong brass circle.
Page 308 - By subtracting this from twenty-four hours, we have the length of the shortest night. If we bring the first degree of Capricorn to the brass meridian' and proceed in all respects as before, we shall have the length of the longest night and shortest day. Thus, at Delhi, the...
Page 312 - As the terrestrial globe by turning on its axis represents the real diurnal motion of the earth ; so the celestial globe, by turning on its axis, represents the apparent motion of the heavens.
Page 210 - ... than the hour at the given place, turn the globe eastward till the index has passed over as many hours as are equal to the given...
Page 285 - ... equal parts or degrees, as in the figure. Because the hour-lines are less distant from each other about noon, than in any other part of the dial, it is best to have the centres of these quadrants at a little distance from the centre of the dial-plane...
Page 420 - The grand transition, that there lives and works A soul in all things, and that soul is God. The beauties of the wilderness are His, That make so gay the solitary place Where no eye sees them. And the fairer forms That cultivation glories in are His. He sets the bright procession on its way, And marshals all the order of the year ; He marks the bounds which winter may not pass, And blunts his pointed fury ; in its case, Russet and rude...
Page 83 - THE natural advantages which arise from the position of the earth which we inhabit with respect to the other planets, afford much employment to mathematical speculation, by which it has been discovered, that no other conformation of...