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 páginas |
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Página 20
... meridian is that vertical circle which passes through the north and south points . The prime vertical is that vertical circle which pas- ses through the east and west points . The altitude of a body is its elevation above the ho- rizon ...
... meridian is that vertical circle which passes through the north and south points . The prime vertical is that vertical circle which pas- ses through the east and west points . The altitude of a body is its elevation above the ho- rizon ...
Página 21
... meridian , in order to find its azi- muth ; but if the point is above the horizon , then its azimuth is estimated by passing a vertical circle through it , and reckoning the azimuth from the point where this circle cuts the horizon ...
... meridian , in order to find its azi- muth ; but if the point is above the horizon , then its azimuth is estimated by passing a vertical circle through it , and reckoning the azimuth from the point where this circle cuts the horizon ...
Página 22
... meridian of Greenwich cuts the equator . If the place is north or south of the equator , then its longitude is the arc of the equator intercepted between the meridian which passes through the place and the meridian of Greenwich . The ...
... meridian of Greenwich cuts the equator . If the place is north or south of the equator , then its longitude is the arc of the equator intercepted between the meridian which passes through the place and the meridian of Greenwich . The ...
Página 23
... meridian which passes through the equinoctial points . From this meridian , right ascension and celestial longi- tude are reckoned , as longitude on the earth is reckon- ed from the meridian of Greenwich . The solstitial colure is the ...
... meridian which passes through the equinoctial points . From this meridian , right ascension and celestial longi- tude are reckoned , as longitude on the earth is reckon- ed from the meridian of Greenwich . The solstitial colure is the ...
Página 24
... meridian of Greenwich . On the other hand , celestial longitude and latitude are referred , not to the equator , but to the ecliptic . Celestial longitude is the distance of a body from the vernal equinox measured on the ecliptic . Ce ...
... meridian of Greenwich . On the other hand , celestial longitude and latitude are referred , not to the equator , but to the ecliptic . Celestial longitude is the distance of a body from the vernal equinox measured on the ecliptic . Ce ...
Outras edições - Ver tudo
Letters on Astronomy, Addressed to a Lady: in which the Elements of the ... Denison Olmsted Visualização integral - 1841 |
Letters on Astronomy, Addressed to a Lady: In which the Elements of the ... Denison Olmsted Visualização integral - 1847 |
Letters on Astronomy, Addressed to a Lady: In which the Elements of the ... Denison Olmsted Visualização integral - 1842 |
Palavras e frases frequentes
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