AstronomyS.P.C.K., 1875 - 126 pages |
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Page 3
... Precession and Nutation of the Equinoxes , 124 - Signs of the Zodiac , 126 , • Elements of the Principal Planets , 127 . Elements of Periodical Comets , 128 . ELEMENTARY ASTRONOMY . CHAPTER I. THE most casual observation suffices.
... Precession and Nutation of the Equinoxes , 124 - Signs of the Zodiac , 126 , • Elements of the Principal Planets , 127 . Elements of Periodical Comets , 128 . ELEMENTARY ASTRONOMY . CHAPTER I. THE most casual observation suffices.
Page 37
... in the spectroscope by the characteristic hues of which their light is composed , just as in the case of hydrogen , the hue being determined accurately by the position in 38 CORONA - ZODIACAL LIGHT . the spectrum of the.
... in the spectroscope by the characteristic hues of which their light is composed , just as in the case of hydrogen , the hue being determined accurately by the position in 38 CORONA - ZODIACAL LIGHT . the spectrum of the.
Page 38
... Zodiacal light , and is now supposed to be composed of myriads of small particles which reflect the Sun's light , and form a lens - shaped disc reaching probably beyond the earth's orbit . Of the cause of the Sun's light and heat , both ...
... Zodiacal light , and is now supposed to be composed of myriads of small particles which reflect the Sun's light , and form a lens - shaped disc reaching probably beyond the earth's orbit . Of the cause of the Sun's light and heat , both ...
Page 63
... zodiacal light , and form the tails of comets . The idea has been advanced that these small bodies , so different from the principal planets , may perhaps be the result of an explosion which has shattered a planet formerly circulating ...
... zodiacal light , and form the tails of comets . The idea has been advanced that these small bodies , so different from the principal planets , may perhaps be the result of an explosion which has shattered a planet formerly circulating ...
Page 89
... bodies revolving round Saturn like satellites , and forming an appendage some- what similar to the Zodiacal Light round the Sun. Saturn is nearly ten times the size of the earth , but 90 URANUS AND NEPTUNE . only on the whole one.
... bodies revolving round Saturn like satellites , and forming an appendage some- what similar to the Zodiacal Light round the Sun. Saturn is nearly ten times the size of the earth , but 90 URANUS AND NEPTUNE . only on the whole one.
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Common terms and phrases
61 Cygni apparent motion appears atmosphere attraction axis Bear's tail bright stars called centre circles of latitude clock cloth boards constellation corresponding craters Crown 8vo density diameter direction earth's orbit eastward ellipse equator exactly Full Moon globe Greenwich Groombridge 1830 heat heavenly body heavens hemisphere horizon illustrations on toned inferior conjunction inferior planet interval Jupiter large number light longitude magnitude Mars mass Mercury meridian meteors Moon's motion moving round naked eye nearly nebulæ Neptune node northern observations opposite oval parabola parallax particles passing path PERIODICAL COMETS pole Pole-star position pull radius rays right ascension rotation round the earth round the Sun Royal 16mo Saturn seen shift side sidereal solar southern spectrum Sun's disc superior planet suppose surface tail three full-page illustrations tilt tion toned paper transit Uranus velocity Venus vernal equinox visible westward whilst zenith Zodiac zodiacal light
Popular passages
Page 108 - 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.