The Illustrated London Astronomy for the Use of Schools and StudentsIngram, Cooke, and Company, 1853 - 99 pages |
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Page 4
... globe is one of the planets , and is accompanied in its course round that luminary by the Moon , which revolves about the Earth as the latter pur- sues her course round the Sun. Mercury , Venus , the Earth , & c . are called primary ...
... globe is one of the planets , and is accompanied in its course round that luminary by the Moon , which revolves about the Earth as the latter pur- sues her course round the Sun. Mercury , Venus , the Earth , & c . are called primary ...
Page 5
... globe is afforded ; we first lose sight of the hull of a ship , then of the lower masts , and finally , of the highest sails and masts , as the vessel sinks below the horizon in sailing for its destination . In addition to these simple ...
... globe is afforded ; we first lose sight of the hull of a ship , then of the lower masts , and finally , of the highest sails and masts , as the vessel sinks below the horizon in sailing for its destination . In addition to these simple ...
Page 6
... globe revolves upon its axis in the direction EQ , the star appears to travel on through the small circle to h , when it is again on the meri- dian above the pole ; it continues its course along the dotted line to g , and is once more ...
... globe revolves upon its axis in the direction EQ , the star appears to travel on through the small circle to h , when it is again on the meri- dian above the pole ; it continues its course along the dotted line to g , and is once more ...
Page 9
... globe can be seen in the engraving . The day is longer than the night nearly in the same proportion that ab is longer than b c . When the Earth is at A , the Sun is at the commencement of the sign Cancer , or at the sum- mer solstice ...
... globe can be seen in the engraving . The day is longer than the night nearly in the same proportion that ab is longer than b c . When the Earth is at A , the Sun is at the commencement of the sign Cancer , or at the sum- mer solstice ...
Page 10
... globe moving in the direction of the arrows . It is the spring equinox at D , the autumnal equinox at B ; in both the night is equal in length to the day throughout the Earth's surface . * The former corresponds to the 21st of March ...
... globe moving in the direction of the arrows . It is the spring equinox at D , the autumnal equinox at B ; in both the night is equal in length to the day throughout the Earth's surface . * The former corresponds to the 21st of March ...
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Common terms and phrases
annular aphelion apparent diameter apparent motion appear astronomers atmosphere axis black spot bright called centre circle colour comets constellation course dark direction Earth and Sun Earth's atmosphere Earth's surface ecliptic equator equinox figure fixed stars globe greater greatest heavenly bodies heavens hemisphere Herschel horizon inclined inferior conjunction inferior planet interval Jupiter latitude less light longitude luminary luminous lunar magnitude Mars mean distance Mercury meridian millions of miles Moon Moon's moving naked eye nearest nearly nebula Neptune night node observed occupied opposite orbit parallax passes perihelion planetary position present rays refraction remarked revolution round revolve right ascension ring rotation round the Sun satellite Saturn seen semidiameter shadow shew Sidereal period signs solar space Sun and Moon Sun's disc superior conjunction superior planet supposed synodical revolution telescope termed tides tion transits of Venus Uranus Ursa Ursa Major velocity visible WEBSTER'S DICTIONARY zenith zodiacal
Popular passages
Page 13 - It has been found that, with respect to any two planets, the squares of the times of revolution are to each other in the same proportion as the cubes of their mean distances, — a most surprising result, for the discovery of which the world was indebted to the illustrious Kepler. Sir John Herschel truly observes...
Page 79 - 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 91 - These phenomena agree with the supposition that the stars of our firmament, instead of being scattered in all directions indifferently through space, form a stratum, of which the thickness is small, in comparison with its length and breadth ; and in which the earth occupies a place somewhere about the middle of its thickness, and near the point where it subdivides into two principal laminae, inclined at a small angle to each other.
Page 40 - They are opaque bodies like the earth, and shine by reflecting the light they receive from the sun. 5. They revolve upon their axes in the same way as the earth. This we know by telescopic observation to be the case with many planets, and by analogy the rule may be extended to all. Hence they will have the alternation of day and night like the inhabitants of the earth ; but their days are of different lengths from our own.