The Geography of the Heavens and Class-book of Astronomy: Accompanied by a Celestial Atlas |
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Page 10
... passing through its centre , north and south , about which its diurnal revolution is performed . The Poles of the ... pass- ing round the Earth , east and west , everywhere equally distant from the poles , and dividing it into ...
... passing through its centre , north and south , about which its diurnal revolution is performed . The Poles of the ... pass- ing round the Earth , east and west , everywhere equally distant from the poles , and dividing it into ...
Page 11
... passes through the east and west points of the horizon . 9. The Ecliptic is the plane of the Earth's orbit ; or the great circle which the Sun appears to describe annually among the stars . It crosses the Equinoctial , a little ...
... passes through the east and west points of the horizon . 9. The Ecliptic is the plane of the Earth's orbit ; or the great circle which the Sun appears to describe annually among the stars . It crosses the Equinoctial , a little ...
Page 12
... pass through the poles of the heavens , dividing the ecliptic into four equal parts , and mark the seasons of the year . One of them passes through the equinoxes at Aries and Libra , and is thence called the Equi- noctial Colure ; the ...
... pass through the poles of the heavens , dividing the ecliptic into four equal parts , and mark the seasons of the year . One of them passes through the equinoxes at Aries and Libra , and is thence called the Equi- noctial Colure ; the ...
Page 13
... pass the meridian first which has the least right ascension . 19. In consequence of the Earth's motion eastward in its orbit , the stars seem to have a motion westward , besides their apparent diurnal motion caused by the Earth's ...
... pass the meridian first which has the least right ascension . 19. In consequence of the Earth's motion eastward in its orbit , the stars seem to have a motion westward , besides their apparent diurnal motion caused by the Earth's ...
Page 17
... passes . Thus in Georgia , for instance , the starting point should be those stars which are situated in this meridian near the 33d degree of north declination , while in New England it should be those which are situated in it near the ...
... passes . Thus in Georgia , for instance , the starting point should be those stars which are situated in this meridian near the 33d degree of north declination , while in New England it should be those which are situated in it near the ...
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Common terms and phrases
3d magnitude 4th magnitude angle aphelion appear Arcturus Aries astronomers Auriga axis Beta blue bright star called celestial Cepheus circle cluster comet constellation Cor Caroli declination degree Delta Denebola diameter distant companion diurnal motion DOUBLE STAR Earth Earth's orbit east ecliptic equator equinoctial figure fixed stars Gamma head heavens hemisphere Herschel horizon Jupiter latitude Libra light longitude luminous Map VIII mean distance Mercury meridian miles minutes Moon Moon's motion naked eye nearly NEBULA node north pole northern Number of stars o'clock observed Orion pale yellow parallax pass perihelion period planet Pleiades polar position principal star Refracting telescopes refraction remarkable represented revolution revolve right ascension rising satellites Saturn seen shadow sidereal Sirius situated small stars solstice southern Sun's supposed surface Taurus TELESCOPIC OBJECTS tides tion triangle TRIPLE STAR Ursa Ursa Major Venus vernal equinox visible Zeta Zodiac