The Geography of the Heavens, and Class Book of Astronomy: Accompanied by a Celestial Atlas |
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Page xxiv
... hemispheres of the heavens , and a pla- nisphere on the principle of Mercator's projection , which exhibits at one view the sphere of the heavens , and the relative positions of the different constellations and principal stars . With ...
... hemispheres of the heavens , and a pla- nisphere on the principle of Mercator's projection , which exhibits at one view the sphere of the heavens , and the relative positions of the different constellations and principal stars . With ...
Page 26
... hemispheres , of which the upper one is called the visible hemisphere , and the lower one , the invisi- ble hemisphere . It is the plane of this circle which deter- mines the rising and setting of the heavenly bodies . The Sensible or ...
... hemispheres , of which the upper one is called the visible hemisphere , and the lower one , the invisi- ble hemisphere . It is the plane of this circle which deter- mines the rising and setting of the heavenly bodies . The Sensible or ...
Page 30
... hemisphere , they again reappear in the east . It is easy to convert right ascension into time , or time into right ascension ; for if a heavenly body is one hour in passing over 15 ° , it will be one fifteenth of an hour , or 4 minutes ...
... hemisphere , they again reappear in the east . It is easy to convert right ascension into time , or time into right ascension ; for if a heavenly body is one hour in passing over 15 ° , it will be one fifteenth of an hour , or 4 minutes ...
Page 51
... hemisphere . The glories of the scene are unspeakably magnificent ; and the student who fixes his eye upon those lofty mansions of being , cannot fail to covet a knowledge of their order and relations , and to " reverence Him who made ...
... hemisphere . The glories of the scene are unspeakably magnificent ; and the student who fixes his eye upon those lofty mansions of being , cannot fail to covet a knowledge of their order and relations , and to " reverence Him who made ...
Page 71
... hemisphere with a lustre which is unequalled by any other star in the firmament . Its distance from the earth , though computed at 20 millions of millions of miles , is supposed to be less than that of any other star : a distance ...
... hemisphere with a lustre which is unequalled by any other star in the firmament . Its distance from the earth , though computed at 20 millions of millions of miles , is supposed to be less than that of any other star : a distance ...
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Common terms and phrases
3d magnitude 4th magnitude ancient angle appear Arcturus Argo Navis Aries astronomers Auriga axis Beta brightest called Cassiopeia celestial centre Cepheus circle cluster colure comet constellation Cor Caroli declination degree Denebola diameter direction distinguished diurnal motion Earth east ecliptic equal equator equinoctial figure fixed stars Gamma globe head heavenly bodies heavens Hercules Herschel horizon Jupiter latitude length Libra light longitude luminous Mars mean distance Mercury meridian millions of miles minutes Moon Moon's motion naked eye nearly nebulæ night node north pole northern hemisphere o'clock observed orbit Orion parallax passing perihelion period Perseus phenomena planets Pleiades polar star principal star represented revolution revolve right ascension rise satellites Saturn seasons seen side sidereal Sirius situated small stars solar system solstice southern spots square Sun's supposed surface Taurus telescope tion triangle Ursa Venus vernal equinox Virgo visible whole number Zeta Zodiac