The Geography of the Heavens, and Class Book of Astronomy: Accompanied by a Celestial Atlas |
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Page v
... fixed upon the most conspicuous star , or group of stars , in each constellation , as it passed the meri dian , and with a pencil carefully noted all the identifying circum- stances of position , bearing , brightness , number and ...
... fixed upon the most conspicuous star , or group of stars , in each constellation , as it passed the meri dian , and with a pencil carefully noted all the identifying circum- stances of position , bearing , brightness , number and ...
Page viii
... observations were made by taking the meridian distances of different fixed stars near the zenith , first on the south , and afterwards on the north side of the hill , when the plumb line o ! the Sector was found , in both cases , to.
... observations were made by taking the meridian distances of different fixed stars near the zenith , first on the south , and afterwards on the north side of the hill , when the plumb line o ! the Sector was found , in both cases , to.
Page xi
... fix as standards of time must be constant and uniform , or at least , that any slight de- viation from uniformity shall be capable of being ascertained . But we have no uniform motion on earth by which the lapse of duration can be ...
... fix as standards of time must be constant and uniform , or at least , that any slight de- viation from uniformity shall be capable of being ascertained . But we have no uniform motion on earth by which the lapse of duration can be ...
Page 29
... 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 , called the ...
... 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 , called the ...
Page 32
... fix upon the proper starting point . This , on many accounts , would seem to be the North Polar Star . Its position is ap- parently the same every hour of the night throughout the year , while the other stars are continually moving ...
... fix upon the proper starting point . This , on many accounts , would seem to be the North Polar Star . Its position is ap- parently the same every hour of the night throughout the year , while the other stars are continually moving ...
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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