The Geography of the Heavens and Class-book of Astronomy: Accompanied by a Celestial Atlas |
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Page 10
... surface of the Earth . 5. In order to facilitate the study of Astronomy , artificial representations of the heavens , similar to those of the surface of the Earth , have been made . Thus , a Celestial Atlas , composed of several maps ...
... surface of the Earth . 5. In order to facilitate the study of Astronomy , artificial representations of the heavens , similar to those of the surface of the Earth , have been made . Thus , a Celestial Atlas , composed of several maps ...
Page 12
... surface , north and south of the equator , and parallel to it . Parallels of Declination are small circles , imagined to be drawn on the concave surface of the heavens , north and south of the equinoctial , and parallel to it ; or they ...
... surface , north and south of the equator , and parallel to it . Parallels of Declination are small circles , imagined to be drawn on the concave surface of the heavens , north and south of the equinoctial , and parallel to it ; or they ...
Page 13
... surface into 24 sections , each 15 ° in width , These meridians mark the space which the heavenly bodies appear to describe , every hour , for the 24 hours of the day . They are thence sometimes denominated Hour Circles . In measuring ...
... surface into 24 sections , each 15 ° in width , These meridians mark the space which the heavenly bodies appear to describe , every hour , for the 24 hours of the day . They are thence sometimes denominated Hour Circles . In measuring ...
Page 14
... surface of the heavens . The first of these exhibits the principal constellations visible to us in October , November , and Decem- ber ; the second , those visible in January , February , and March ; the third , those visible in April ...
... surface of the heavens . The first of these exhibits the principal constellations visible to us in October , November , and Decem- ber ; the second , those visible in January , February , and March ; the third , those visible in April ...
Page 24
... surface . This conjecture , continues he , is confirmed by their change of color , which is analogous to that presented to us on the earth by those bodies which are set on fire , and then gradually extinguished . The late eminent Dr ...
... surface . This conjecture , continues he , is confirmed by their change of color , which is analogous to that presented to us on the earth by those bodies which are set on fire , and then gradually extinguished . The late eminent Dr ...
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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 Cassiopeia celestial Cepheus circle cluster comet constellation Cor Caroli declination degree Delta Denebola diameter distant companion DOUBLE STAR Earth Earth's orbit east ecliptic equator equinoctial figure fixed stars Gamma head heavens hemisphere Herschel horizon Jupiter latitude 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 TELESCOPIC OBJECTS.-Alpha tides tion triangle TRIPLE STAR Ursa Ursa Major Venus vernal equinox visible Zeta Zodiac