Fourteen Weeks in Descriptive Astronomy |
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Page 37
... zenith and nadir ) . The Prime Vertical is a vertical circle passing through the East and West points . The Meridian is a vertical circle passing through the North and South points . ( c ) POINTS . - These are the Zenith , the Nadir ...
... zenith and nadir ) . The Prime Vertical is a vertical circle passing through the East and West points . The Meridian is a vertical circle passing through the North and South points . ( c ) POINTS . - These are the Zenith , the Nadir ...
Page 38
... zenith . Zenith distance ( the complement of Altitude ) is the distance from the zenith , measured on a vertical circle , toward the horizon . The Horizon System is the one commonly used in observations with Mural Circles and Transit In ...
... zenith . Zenith distance ( the complement of Altitude ) is the distance from the zenith , measured on a vertical circle , toward the horizon . The Horizon System is the one commonly used in observations with Mural Circles and Transit In ...
Page 104
... 29 . Z K F N E P Z ' Unequal diurnal orbits of the stars . Let O repre- sent our position on the earth's surface , E Z B our meridian ; EIB K our horizon ; P and P ' the north and south poles , Z the zenith , Z ' 104 THE SOLAR SYSTEM .
... 29 . Z K F N E P Z ' Unequal diurnal orbits of the stars . Let O repre- sent our position on the earth's surface , E Z B our meridian ; EIB K our horizon ; P and P ' the north and south poles , Z the zenith , Z ' 104 THE SOLAR SYSTEM .
Page 105
Joel Dorman Steele. and south poles , Z the zenith , Z ' the nadir ; and GICK the celestial equator . Now PB , it will be seen , is the elevation of the north pole above the horizon , or the latitude of the place . Suppose we should see ...
Joel Dorman Steele. and south poles , Z the zenith , Z ' the nadir ; and GICK the celestial equator . Now PB , it will be seen , is the elevation of the north pole above the horizon , or the latitude of the place . Suppose we should see ...
Page 106
... zenith , while we could see one half of the path of each star . Were we placed in the southern hemisphere , the circumpolar stars would rotate about the south pole , and the others in cir- cles resembling those in our sky , only the ...
... zenith , while we could see one half of the path of each star . Were we placed in the southern hemisphere , the circumpolar stars would rotate about the south pole , and the others in cir- cles resembling those in our sky , only the ...
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Common terms and phrases
ancients Andromeda angle aphelion appear Aries astronomers atmosphere axis Boötes bright brilliant Canis Minor Capricornus Cassiopeia cause Celestial Sphere centre Cepheus circle color comet conjunction constellation Cor Caroli dark density Describe diameter disk earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavenly bodies heavens Hercules Herschel horizon inclined inferior conjunction inferior planet Jupiter latitude length light luminous lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon's motion move naked eye nearly nebula Neptune night node north pole Orion parallax pass path penumbra perihelion Perseus Pisces polar Polaris precession rays revolve ring rising Saturn seasons seen shine side sidereal sidereal day solar day solar system solstice space spots summer sun's surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible winter Zodiac