Astronomical and geographical essaysW. & S. Jones, 1812 - 518 páginas |
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Página 13
... ecliptic ; the other hoops may be then set more or less obliquely to the repre sentative of the ecliptic . The several orbits do not cross or intersect the ecliptic in the same point , or at the same angles ; but their nodes or ...
... ecliptic ; the other hoops may be then set more or less obliquely to the repre sentative of the ecliptic . The several orbits do not cross or intersect the ecliptic in the same point , or at the same angles ; but their nodes or ...
Página 19
... ecliptic . * OF THE APPARENT PHENOMENA OF THE MOON . The motion of the moon through the heavens , and her appearance therein , are still more remarkable than those of the sun ; she engages the attention " by the nightly changes in her ...
... ecliptic . * OF THE APPARENT PHENOMENA OF THE MOON . The motion of the moon through the heavens , and her appearance therein , are still more remarkable than those of the sun ; she engages the attention " by the nightly changes in her ...
Página 30
... ecliptic . * * The young observer may view the spots of the sun with a re- fracting telescope of two or three feet , or a reflecting one of 12 inches , 18 inches , or two feet , taking care to guard the eye with a dark glass , to take ...
... ecliptic . * * The young observer may view the spots of the sun with a re- fracting telescope of two or three feet , or a reflecting one of 12 inches , 18 inches , or two feet , taking care to guard the eye with a dark glass , to take ...
Página 33
... sun is called a transit . It happens in its lower conjunction , at a particular situation of the nodes ; which leads us to mention their place in the ecliptic . The angle formed by the inclination of the orbit of OF MERCURY . 33.
... sun is called a transit . It happens in its lower conjunction , at a particular situation of the nodes ; which leads us to mention their place in the ecliptic . The angle formed by the inclination of the orbit of OF MERCURY . 33.
Página 34
... ecliptic , is 16 ' 59 ' ; the node from which Mercury ascends north- ward , above the plane of the ecliptic , is 16 1 ' 30 " ; in Taurus , the opposite one , 14 ° 1 24 " ; in Sagitta- rius , its nodes move forward about 50 per year . If ...
... ecliptic , is 16 ' 59 ' ; the node from which Mercury ascends north- ward , above the plane of the ecliptic , is 16 1 ' 30 " ; in Taurus , the opposite one , 14 ° 1 24 " ; in Sagitta- rius , its nodes move forward about 50 per year . If ...
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Otras ediciones - Ver todo
ASTRONOMICAL & GEOGRAPHICAL ES George 1750-1795 Adams,William 1763-1831 Jones No hay ninguna vista previa disponible - 2016 |
ASTRONOMICAL & GEOGRAPHICAL ES George 1750-1795 Adams,William 1763-1831 Jones No hay ninguna vista previa disponible - 2016 |
Términos y frases comunes
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
Pasajes populares
Página 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.
Página 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...
Página 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...
Página 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.
Página 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...
Página 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.
Página 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...
Página 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...
Página 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...
Página 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...