Practical Astronomy and Geodesy: Including the Projections of the Sphere and Spherical Trigonometry. For the Use of the Royal Military CollegeLongman, Brown, Green, and Longmans, 1845 - 427 pages |
From inside the book
Results 1-5 of 100
Page xxi
... Difference between a mean solar , and a mean sidereal day · 236 307. Lengths of a lunar , and of a planetary day 308 ... differences · 248 317. Investigation of a formula for first , second , and third dif- ferences ; with an example for ...
... Difference between a mean solar , and a mean sidereal day · 236 307. Lengths of a lunar , and of a planetary day 308 ... differences · 248 317. Investigation of a formula for first , second , and third dif- ferences ; with an example for ...
Page 8
... difference between these last angles is equal to the angle ACB . Hence , the arc AB being measured , the following pro- portion will give the length of the earth's circumference : b A m B n E ACB ( in degrees ) : 360 ° :: AB ...
... difference between these last angles is equal to the angle ACB . Hence , the arc AB being measured , the following pro- portion will give the length of the earth's circumference : b A m B n E ACB ( in degrees ) : 360 ° :: AB ...
Page 37
... difference between the sines of the latitudes of a and b , the given extremities of the zone . Let the difference between the sines of the latitudes be represented by d , then EG = d arc ab Again , in the right- angled triangle EGC , CG ...
... difference between the sines of the latitudes of a and b , the given extremities of the zone . Let the difference between the sines of the latitudes be represented by d , then EG = d arc ab Again , in the right- angled triangle EGC , CG ...
Page 42
... difference ( = 131 ) is the difference of latitude in the projection ; there- fore make A c , from the same scale , equal to 131 , and draw cb parallel to CB . Then cb being computed , or measured on the scale , will be 156.15 or 2 ...
... difference ( = 131 ) is the difference of latitude in the projection ; there- fore make A c , from the same scale , equal to 131 , and draw cb parallel to CB . Then cb being computed , or measured on the scale , will be 156.15 or 2 ...
Page 67
... difference of the readings at the extremities of the line , the error , if any exist , in the horizontality of the axis of motion . When the level is in a horizontal position , the bubble of air is stationary at the middle of the upper ...
... difference of the readings at the extremities of the line , the error , if any exist , in the horizontality of the axis of motion . When the level is in a horizontal position , the bubble of air is stationary at the middle of the upper ...
Contents
1 | |
7 | |
13 | |
18 | |
20 | |
32 | |
41 | |
44 | |
201 | |
203 | |
207 | |
208 | |
214 | |
220 | |
225 | |
228 | |
47 | |
57 | |
62 | |
64 | |
69 | |
72 | |
73 | |
79 | |
80 | |
83 | |
93 | |
96 | |
98 | |
104 | |
105 | |
107 | |
109 | |
110 | |
116 | |
124 | |
129 | |
135 | |
151 | |
153 | |
163 | |
164 | |
170 | |
177 | |
180 | |
183 | |
186 | |
189 | |
232 | |
233 | |
238 | |
251 | |
257 | |
279 | |
281 | |
292 | |
316 | |
318 | |
324 | |
331 | |
337 | |
338 | |
347 | |
350 | |
351 | |
353 | |
357 | |
358 | |
368 | |
372 | |
378 | |
389 | |
390 | |
392 | |
396 | |
398 | |
404 | |
419 | |
Other editions - View all
Practical Astronomy and Geodesy: Including the Projections of the ..., Volume 5 John Narrien No preview available - 2016 |
Common terms and phrases
angular distance apparent ascension and declination astronomical azimuth bisected celestial body celestial sphere centre circle passing circumference colatitude computed considered correction corresponding cosine cotan degrees described determined diameter difference earth ecliptic ellipse equal equator equatorial equinoctial point expressed fixed star formula geocentric given graduation Greenwich Greenwich mean horary motions horizontal parallax hour angle index error instant instrument interval latitude latter let fall limb longitude mean noon meridian micrometer moon moon's Nautical Almanac node observed altitude obtained optical axis orbit parallax parallel perihelion perpendicular plane passing polar distance pole position projection radius refraction represented revolution revolve right angles right ascension satellite screw sector semidiameter side sidereal sidereal clock sine sphere spherical triangle star's station subtended subtracted supposed surface tangent transit telescope true variation vertical wire zenith distance zero
Popular passages
Page 428 - Riddle's Diamond Latin-English Dictionary. A Guide to the Meaning. Quality, and right Accentuation of Latin Classical Words. Royal 32mo.
Page 427 - Howard's Introductory Greek Exercises, and Key. Introductory Greek Exercises to those of Huntingford, Dunbar, Neilson, and others; arranged under Models, to assist the learner: with Exercises on the different Tenses of Verbs, extracted from the Table or Picture of Cebes. By NATHANIEL HOWARD.
Page 425 - A COURSE OF ENGLISH READING, adapted to every Taste and Capacity : with Anecdotes of Men of Letters. By the Rev. JAMES PYCROFT, BA Trinity College, Oxford ; Author of " Latin Grammar Practice," and