Practical Astronomy and Geodesy: Including the Projections of the Sphere and Spherical Trigonometry. For the Use of the Royal Military College

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Longman, Brown, Green, and Longmans, 1845 - 427 pages
 

Contents

Investigation of the parallax in a line joining the two which
232
Discovery of the aberration of light
233
Equation of time defined Formula for its value
238
Manner of finding a planets mean motion by observation
251
Formula for reducing an observed angle to the plane of
257
140
279
Prob V Having the latitude of a station the day of
281
Prop III To correct the length of a pendulum on account
292
Formula for the reduction of a spherical arc to its chord
316
Methods of finding the error and rate of a chronometer
318
OUTLINES OF THE METHODS OF COMPUTING THE OCCURRENCE
324
Importance of celestial observations at
331
Prob II To find the hour of the day by an observed
337
Process for finding the longitude of a station from an
338
Investigation of the change in the suns azimuth caused by
347
FormulŠ for determining the length of a seconds pendulum
350
The geodetic line or arc of shortest distance on the earth
351
Littrows formula for finding the latitude of a station by three
353
Methods of determining the latitude by two altitudes of
357
Advantageous positions for the stations
358
Rule for computing the azimuth of the polestar at
368
Method of finding the difference between the apparent
372
410
378
Projection of a portion of a sphere gnomonically on a tangent
389
Prop VIII To find the distance in feet on an elliptical
390
This example has been accidently placed at the end of art 357
392
Formula for verifying the observed angles of a triangle on
396
Prob III To determine the positions of two objects with
398
Nature of mountain barometers Formula for finding
404
Instruments used for the more delicate observations
419
160
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