The Geography of the Heavens: And Class-book of Astronomy; Accompanied by a Celestial Atlas |
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Page ix
... East or West from a given meridian ; and , by taking the meridian altitude of the sun or of a star , he can learn his distance from the Equator or from the poles of the world . In such observations , a knowledge of the con- stellations ...
... East or West from a given meridian ; and , by taking the meridian altitude of the sun or of a star , he can learn his distance from the Equator or from the poles of the world . In such observations , a knowledge of the con- stellations ...
Page 26
... east and west , everywhere equally distant from the poles , and dividing it into northern and southern hemispheres . The Equator of the Heavens , or Equinoctial , is the great circle formed on the concave surface of the heavens , by pro ...
... east and west , everywhere equally distant from the poles , and dividing it into northern and southern hemispheres . The Equator of the Heavens , or Equinoctial , is the great circle formed on the concave surface of the heavens , by pro ...
Page 27
... east and west points of the horizon . The Ecliptic is the great circle which the Sun appears to describe annually among the stars . It crosses the Equinoc- tial , a little obliquely , in two opposite points which are called the ...
... east and west points of the horizon . The Ecliptic is the great circle which the Sun appears to describe annually among the stars . It crosses the Equinoc- tial , a little obliquely , in two opposite points which are called the ...
Page 29
... east or west from some fixed meridian , measured on the equator . Longitude in the Heavens , is distance east from the first point of Aries , measured on the ecliptic . Declination is the distance of a heavenly body either north or ...
... east or west from some fixed meridian , measured on the equator . Longitude in the Heavens , is distance east from the first point of Aries , measured on the ecliptic . Declination is the distance of a heavenly body either north or ...
Page 30
... east , and ascending to the meridian , others sink beneath the western horizon , and are seen no more , until , having passed through the lower hemisphere , they again reappear in the east . It is easy to convert right ascension into ...
... east , and ascending to the meridian , others sink beneath the western horizon , and are seen no more , until , having passed through the lower hemisphere , they again reappear in the east . It is easy to convert right ascension into ...
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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 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 Mars mean distance Mercury meridian millions of miles minutes Moon Moon's motion naked eye nearly nebula 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