The Geography of the Heavens, and Class Book of Astronomy; Accompanied by a Celestial Atlas |
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Page ix
... Equator or from the poles of the world . In such observations , a knowledge of the con- Stellations , of the polestar , and of the general positions of all the stars of the first and second magnitude , is of particular importance ; and ...
... Equator or from the poles of the world . In such observations , a knowledge of the con- Stellations , of the polestar , and of the general positions of all the stars of the first and second magnitude , is of particular importance ; and ...
Page 26
... Equator of the Earth is an imaginary great circle passing round the Earth , east and west , everywhere equally distant from the poles , and dividing it into northern and southern hemispheres . The Equator of the Heavens , or Equinoctial ...
... Equator of the Earth is an imaginary great circle passing round the Earth , east and west , everywhere equally distant from the poles , and dividing it into northern and southern hemispheres . The Equator of the Heavens , or Equinoctial ...
Page 28
... equator , being always at the same distance from the poles that the tropics are from the equator . The northern is called the Arctic circle , and the southern the Antarctic circle . Meridians are imaginary great circles drawn through ...
... equator , being always at the same distance from the poles that the tropics are from the equator . The northern is called the Arctic circle , and the southern the Antarctic circle . Meridians are imaginary great circles drawn through ...
Page 29
... equator , and some fixed meridian , as that of Greenwich , contain the primary starting points ; in the heavens , these points are in the ecliptic , the equinoctial , and that great meridian which passes through the first point of Aries ...
... equator , and some fixed meridian , as that of Greenwich , contain the primary starting points ; in the heavens , these points are in the ecliptic , the equinoctial , and that great meridian which passes through the first point of Aries ...
Page 42
... Equator . If we live in 420 N. latitude , the N. pole will be 42 ° above our horizon . ( See North Polar Star . ) There are also two smaller stars about 9 ° E. of Alderamin and Alphirk , with which they form a square ; Alderamin being ...
... Equator . If we live in 420 N. latitude , the N. pole will be 42 ° above our horizon . ( See North Polar Star . ) There are also two smaller stars about 9 ° E. of Alderamin and Alphirk , with which they form a square ; Alderamin being ...
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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 Delta Denebola Describe 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 mean distance Mercury meridian millions of miles minutes Moon Moon's motion naked eye nearly nebulæ night node north pole northern hemisphere observed orbit Orion parallax passing perihelion period Perseus phenomena planets Pleiades polar star position principal star represented revolution revolve right ascension rise satellites Saturn seasons seen side sidereal Sirius situated small stars solar system solstice southern spots Sun's supposed surface Taurus telescope tion triangle Ursa Venus vernal equinox Virgo visible whole number Zeta Zodiac