Astronography; Or, Astronomical Geography ... |
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Page 7
... sun appears to change his position in regard to the fixed stars , but does not in reality . His apparent yearly course through the constellations is in that great circle , belonging solely to the celestial sphere , called the ECLIPTIC ...
... sun appears to change his position in regard to the fixed stars , but does not in reality . His apparent yearly course through the constellations is in that great circle , belonging solely to the celestial sphere , called the ECLIPTIC ...
Page 11
... sun appears to revolve in a year . Another circle contains the signs of the zodiac , divided into degrees and the days of the month to which they correspond . A quadrant of altitude is a thin slip of brass divided into 90 degrees , and ...
... sun appears to revolve in a year . Another circle contains the signs of the zodiac , divided into degrees and the days of the month to which they correspond . A quadrant of altitude is a thin slip of brass divided into 90 degrees , and ...
Page 13
... appears as a star . It belongs to a group of celestial bodies , of which the SUN ( or Sol , as called by the Latins ) is the great central source of light , of heat , and of attraction . 7. Of the bodies which belong to the solar system ...
... appears as a star . It belongs to a group of celestial bodies , of which the SUN ( or Sol , as called by the Latins ) is the great central source of light , of heat , and of attraction . 7. Of the bodies which belong to the solar system ...
Page 22
... sun , or when in her planetary orbit she revolves in space once a year ... appears to move around the earth once in a year , keeping the same ... sun's track in the heavens , may be called , in reference to the two former , the system of ...
... sun , or when in her planetary orbit she revolves in space once a year ... appears to move around the earth once in a year , keeping the same ... sun's track in the heavens , may be called , in reference to the two former , the system of ...
Page 26
... appears to be the simplest method of finding the latitude of any place ? Could it be found by taking the sun's altitude ? EXERCISES . In the preceding chapter we have seen that there are three spherical systems . 1st , that of the earth ...
... appears to be the simplest method of finding the latitude of any place ? Could it be found by taking the sun's altitude ? EXERCISES . In the preceding chapter we have seen that there are three spherical systems . 1st , that of the earth ...
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Common terms and phrases
23 degrees 90 degrees almacantar circles altitude Aries astronomical astronomical geography atmosphere autumnal axis called Caph celestial globe celestial longitude celestial sphere centre circle of daily circle of latitude climate coincide constellations course Cynosura daily motion declination describe diameter direction diurnal diurnal motion divided earth earth's orbit earth's surface ecliptic equal equator equinoctial colure equinoctial points equinoxes fixed stars gravitation heat heavenly bodies heavens Hipparchus horizon intersection Kepler learners length London Megrez miles minutes moon moon's movable positions move night noon north pole northern number of degrees observer observer's latitude opposite parallax passes planets polar circles QUESTIONS UNDER CHAPTER rays reckoned revolve right angles right ascension secondary seen sidereal sidereal day signs solar day solstice solstitial colure solstitial point southern spherical systems summer sun appears suppose telescope terrestrial globe tides tropics upper vertex vernal colure vernal equinox vertical circles zone
Popular passages
Page 90 - Had in her sober livery all things clad ; Silence accompanied ; for beast and bird, They to their grassy couch, these to their nests Were slunk, all but the wakeful nightingale. She all night long her amorous descant sung : Silence was pleased. Now...
Page 59 - But wandering oft, with brute unconscious gaze, Man marks not THEE, marks not the mighty hand That, ever busy, wheels the silent spheres; Works in the secret deep; shoots, steaming, thence The fair profusion that o'erspreads the Spring...
Page 165 - Objections of a graver nature were advanced on the authority of St. Augustine. He pronounces the doctrine of antipodes to be incompatible with the historical foundations of our faith ; since, to assert that there were inhabited lands on the opposite side of the globe, would be to maintain that there were nations not descended from Adam, it being impossible for them to have passed the intervening ocean. This would be, therefore, to discredit the Bible, which expressly declares, that all men are descended...
Page 133 - And God said, Let there be lights in the firmament of heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years...
Page 170 - There are seven windows given to animals in the domicile of the head, through which the air is admitted to the tabernacle of the body, to enlighten, to warm, and to nourish it...
Page 16 - Pallas, grains of sand, in orbits of from 1000 to 1200 feet ; Jupiter, a moderate-sized orange, in a circle nearly half a mile across ; Saturn, a small orange, on a circle of four-fifths of a mile ; and Uranus, a full-sized cherry or small plum, upon the circumference of a circle more than a mile and a half in diameter.
Page 170 - From which and many other similar phenomena of Nature, such as the seven metals, etc., which it were tedious to enumerate, we gather that the number of planets is necessarily seven.
Page 170 - Besides, the Jews and other ancient nations as well as modern Europeans have adopted the division of the week into seven days, and have named them from the seven planets : now if we increase the number of the planets this whole system falls to the ground.
Page 16 - Venus, a pea on a circle 284 feet in diameter ; the Earth also a pea, on a circle of 430 feet ; Mars, a rather large pin's head, on a circle of 654 feet; Juno, Ceres, Vesta, and Pallas, grains of sand, in orbits of from...
Page 165 - Is there any one so foolish," he asks, " as to believe that there are antipodes with their feet opposite to ours : people who walk with their heels upward, and their heads hanging down ? That there is a part of the world in which all things are topsy-turvy : where the trees grow with their branches downward, and where it rains, hails, and snows upward ? The idea of the roundness of the earth...