Letters on Astronomy: Addressed to a Lady; in which the Elements of the Science are Familiarly Explained in Connexion with Its Literary HistoryMarsh, Capen, Lyon and Webb, 1841 - 419 |
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Strona 9
... various labors of the moon , And whence proceed th ' eclipses of the sun ; Why flowing tides prevail upon the main , And in what dark recess they shrink again ; What shakes the solid earth , what cause delays The Summer nights , and ...
... various labors of the moon , And whence proceed th ' eclipses of the sun ; Why flowing tides prevail upon the main , And in what dark recess they shrink again ; What shakes the solid earth , what cause delays The Summer nights , and ...
Strona 19
... various ways . The earth thus inter- sected is called the terrestrial , and the heavens the ce- lestial , sphere . We must bear in mind , that these cir- cles have no existence in Nature , but are mere land- marks , artificially ...
... various ways . The earth thus inter- sected is called the terrestrial , and the heavens the ce- lestial , sphere . We must bear in mind , that these cir- cles have no existence in Nature , but are mere land- marks , artificially ...
Strona 23
... various meridians , two are distinguished by the name of colures . The equinoctial colure is the meridian which passes through the equinoctial points . From this meridian , right ascension and celestial longi- tude are reckoned , as ...
... various meridians , two are distinguished by the name of colures . The equinoctial colure is the meridian which passes through the equinoctial points . From this meridian , right ascension and celestial longi- tude are reckoned , as ...
Strona 25
... various circles of the sphere , we may next resort to an artificial globe , and see how they are severally represented there . I do not advise to begin learning the definitions from the globe ; the mind is more improved , and a power of ...
... various circles of the sphere , we may next resort to an artificial globe , and see how they are severally represented there . I do not advise to begin learning the definitions from the globe ; the mind is more improved , and a power of ...
Strona 27
... various arcs of azimuth and altitude , right ascen- sion and declination , terrestrial and celestial latitude and longitude , these last being referred to the equa- tor on the earth , and to the ecliptic in the heavens . When the ...
... various arcs of azimuth and altitude , right ascen- sion and declination , terrestrial and celestial latitude and longitude , these last being referred to the equa- tor on the earth , and to the ecliptic in the heavens . When the ...
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angle appear ascertain astronomers atmosphere attraction axis called celestial centre circle comet conjunction constellation degrees diameter direction discovery disk distance diurnal motion doctrine double stars earth ecliptic equal equator equinox exhibited fact fixed stars force Galileo globe gravity greater greatest half Halley's comet heavenly bodies heavens Hence Herschel horizon hundred inferior conjunction instrument John Herschel Jupiter Kepler latitude laws length less light longitude lunar lunar eclipse magnitude measure Mercury meridian meteors millions of miles minutes moon moon's motion move Nature nearer nearly node objects observations opposite orbit parallax passing perihelion period phenomena planetary planets pole respect revolve right ascension ring round satellites Saturn seen shadow side space spectator sphere sun's superior planets supposed surface telescope thousand tides tion truth Tycho Tycho Brahe universal gravitation Uranus velocity Venus vernal equinox visible west to east