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

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

Selected pages

Contents

Prop XVIII A line making any constant angles with
32
Application of Mercators principle to a problem in navigation
41
Projection of a hemisphere orthographically on the plane
44
Prop III To express one of the sides of a spherical tri
48
Investigations of formulæ for expressing the relations between
57
Bessels determination of the constant of parallax for
61
Explanation of the middle part and the adjacent and opposite
63
Nature of the observations made for determining the places
72
Description of the repeating circle
77
The micrometer microscope
78
trials
81
Process for determining the error of collimation by a micro
88
Method of placing a transit telescope very near the plane
94
130
98
The parallax of a reflecting instrument
99
CHAP V
105
Manner of determining the refraction by circumpolar stars
107
72
109
148
111
Investigation of a formula for the parallax in altitude
114
Adjustment of the index of the equatorial circle
115
The dip or angular depression of the horizon
126
The suns declination goes through its changes during a year
129
CHAP VII
135
ITS FIGURE
152
The place of the perihelion the semitransverse axis and
153
The sectoral areas described in equal times in a circle and
163
THE ORBIT OF THE MOON
164
Manner of finding the declinations of celestial bodies by
167
The moons movements subject to considerable inequalities
170
Art Page
177
The diurnal aberration of light
183
Processes for finding from the observed azimuth and altitude
187
CHAP XI
189
Method of determining the perihelion point of the earths
200
Equation of time defined Formula for its value
237
Reduction to solar time of the angle at the pole between
243
Investigation of a formula for first second and third dif
249
The instant of witnessing a phenomenon uncertain
253
Formula for reducing an observed angle to the plane of
257
Prob I To find the latitude of a ship or station by means
266
Method of determining the hour of the night by a fixed star
272
Prob V Having the latitude of a station the day of
279
Prop III To correct the length of a pendulum on account
292
Investigation of the inclinations of the apparent to the true
296
Prob X To find the longitude of a station or ship by means
311
Methods of computing the sides of terrestrial triangles
316
Method of finding the longitude of a station by observed
318
OUTLINES OF THE METHODS OF COMPUTING THE OCCURRENCE
324
seconds
325
Process for finding the instants of ingress and egress for
328
Use of observed eclipses of the
345
Formulæ for determining the length of a seconds pendulum
350
The first notions concerning the figure of the earth erroneous
352
Methods of determining the latitude by two altitudes of
357
Formula for the reduction of a spherical arc to its chord
364
Method of finding the difference between the apparent
372
Brief outline of the method of conducting a geodetical survey
374
410
378
Instruments used for the more delicate observations
385
Prop VII To find the ratio between the earths axes
389
Prop VIII To find the distance in feet on an elliptical
390
Details of the process employed in measuring a base
391
This example has been accidently placed at the end of art 357
392
Prob III To determine the positions of two objects with
398
Nature of mountain barometers Formula for finding
404
Formulæ for determining from observation the horizontal
414
The horizontal force and vertical force magnetometer For
420
360
426
Determination of the excentricity of the orbit in terms of

Other editions - View all

Practical Astronomy and Geodesy: including the projections of the Sphere and ...
John NARRIEN
Full view - 1845
Practical Astronomy and Geodesy: Including the Projections of the Sphere and ...
John Narrien
Full view - 1845
Practical Astronomy and Geodesy: Including the Projections of the ..., Volume 5
John Narrien
No preview available - 2016
View all »

Common terms and phrases

aberration altitude angular distance apparent ascension and declination astronomical axis azimuth bisected celestial body celestial sphere centre circumference co-ordinates colatitude computed considered correction cotan degrees described determined diameter difference earth ecliptic ellipse equal equator equatorial equinoctial point expressed fixed star formula geocentric given Greenwich horary horizontal parallax hour angle inclination instant instrument intersection interval latitude latter let fall longitude mean meridian micrometer moon moon's motion Nautical Almanac node nutation obliquity observed obtained parallax parallel perihelion perpendicular plane passing polar distance pole position primitive circle radius vector refraction represented revolution revolve right angles right ascension satellite sector semidiameter side sidereal sin.² sine sphere spherical triangle star's station substituting subtended subtracted sun's supposed surface tangent telescope transit transit telescope Trigon trigonometry vertical whence wire zenith distance zero

Bibliographic information

TitlePractical Astronomy and Geodesy: Including the Projections of the Sphere and Spherical Trigonometry. For the Use of the Royal Military College
AuthorJohn Narrien
PublisherLongman, Brown, Green, and Longmans, 1845
Original fromthe University of California
Digitized27 Aug 2008
Length427 pages
  
Export CitationBiBTeX EndNote RefMan