Practical Astronomy and Geodesy: including the projections of the Sphere and Spherical TrigonometryLongman, Brown, Green and Longmans, 1845 |
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Page xvii
... LATTER FROM THE SUN . Art . — 209. Manner of determining by observation the nodes of the moon's orbit , and its obliquity to the ecliptic - · 210. Process for determining the obliquity of the moon's orbit , and the position of the line ...
... LATTER FROM THE SUN . Art . — 209. Manner of determining by observation the nodes of the moon's orbit , and its obliquity to the ecliptic - · 210. Process for determining the obliquity of the moon's orbit , and the position of the line ...
Page xix
... latter being equal to the radius of the circle ) are to one another as 1 to √ / 2 - · · 203 204 266. Investigation of the sectoral area described about the focus by the radius vector of a parabola 267. Time in which the radius vector ...
... latter being equal to the radius of the circle ) are to one another as 1 to √ / 2 - · · 203 204 266. Investigation of the sectoral area described about the focus by the radius vector of a parabola 267. Time in which the radius vector ...
Page xxiii
... latter being near the meridian ; with an example 352. Formula for determining the latitude of a station by an al- titude of the pole star ; with an example 353. Littrow's formula for finding the latitude of a station by three altitudes ...
... latter being near the meridian ; with an example 352. Formula for determining the latitude of a station by an al- titude of the pole star ; with an example 353. Littrow's formula for finding the latitude of a station by three altitudes ...
Page 14
... latter is the point in which the pole opposite to the pro- jecting point is projected . Cor . 2. Since every two great circles of the sphere intersect one another in a diameter of the sphere , it follows that the projection of any great ...
... latter is the point in which the pole opposite to the pro- jecting point is projected . Cor . 2. Since every two great circles of the sphere intersect one another in a diameter of the sphere , it follows that the projection of any great ...
Page 18
... latter in points which will be in an hyperbola . Let c be the centre of the sphere , and D the point at which the tangent plane DG is in contact with it : let aa " be part of the circumference of a small circle whose plane is ...
... latter in points which will be in an hyperbola . Let c be the centre of the sphere , and D the point at which the tangent plane DG is in contact with it : let aa " be part of the circumference of a small circle whose plane is ...
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Common terms and phrases
aberration altitude angular distance apparent ascension and declination astronomical axis azimuth bisected celestial body celestial sphere centre circle colatitude computed considered correction corresponding cotan degrees described determined diameter difference disk earth ecliptic ellipse equal equator equatorial equinoctial point error expressed fixed star formula given Greenwich heliocentric horary horizontal parallax hour angle instant instrument interval latitude latter let fall mean meridian micrometer moon moon's motion movement Nautical Almanac nearly node noon nutation obliquity observed obtained P'PR parallax parallel perihelion perpendicular plane passing polar distance pole position projection radius vector refraction represented revolution revolve right angles right ascension satellite screw sector semidiameter sidereal sidereal clock sine solar sphere spherical triangle star's station subtracted sun's supposed surface tangent telescope transit transit telescope Trigon variation vertical wire zenith distance zero