The Complete Mathematical and General Navigation Tables: Including Every Table Necessary to be Used with the Nautical Almanac in Finding the Latitude and Longitude : with Their Description and Use, Comprising the Principles of Their Construction, and Their Direct Application to Plane and Spherical Trigonometry, Navigation, Nautical Astronomy, Dialling, Practical Gunnery, Mensuration, Guaging &c. &c, Τόμος 1Baldwin and Cradock, 1828 - 664 σελίδες |
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Σελίδα xxvi
... degrees , and conversely .... XXXIV . Logarithmic sines , tangents , and secants to every point and quar- 97 XXXV ... degree of longitude at every degree of latitude ..... 144 Table . LIV . LV . LVI . LVII . xxvi CONTENTS .
... degrees , and conversely .... XXXIV . Logarithmic sines , tangents , and secants to every point and quar- 97 XXXV ... degree of longitude at every degree of latitude ..... 144 Table . LIV . LV . LVI . LVII . xxvi CONTENTS .
Σελίδα xxvii
... degrees , and conversely 145 147 ... 150 A general table for gauging , or finding the content of all circular headed ... degree at which the hour and minute hands of a well - regulated watch , or clock , should exactly meet , or be in ...
... degrees , and conversely 145 147 ... 150 A general table for gauging , or finding the content of all circular headed ... degree at which the hour and minute hands of a well - regulated watch , or clock , should exactly meet , or be in ...
Σελίδα xxxix
... degrees of this table are expressed by the arithmetical com- plements of those contained in the Table of Natural Co - sines published by the author in " The Young Navigator's Guide , " & c . ; the arithmetical complement of the natural ...
... degrees of this table are expressed by the arithmetical com- plements of those contained in the Table of Natural Co - sines published by the author in " The Young Navigator's Guide , " & c . ; the arithmetical complement of the natural ...
Σελίδα 1
... Degrees , into Time , and conversely . THIS Table consists of six compartments , each of which is divided into two columns : the left - hand column of each compartment contains the longitude , expressed either in degrees , minutes , or ...
... Degrees , into Time , and conversely . THIS Table consists of six compartments , each of which is divided into two columns : the left - hand column of each compartment contains the longitude , expressed either in degrees , minutes , or ...
Σελίδα 2
... degrees in that time , and , consequently , pass the plane of any given meridian once in every 24 hours ; whence it is manifest that any given number of degrees of the equator will bear the same proportion to the great circle of 360 degrees ...
... degrees in that time , and , consequently , pass the plane of any given meridian once in every 24 hours ; whence it is manifest that any given number of degrees of the equator will bear the same proportion to the great circle of 360 degrees ...
Περιεχόμενα
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672 | |
687 | |
Συχνά εμφανιζόμενοι όροι και φράσεις
24 hours ascension at noon auxiliary angle celestial object co-secant co-sine co-tangent column computed Constant log Correction of ditto corresponding course and distance decimal declination at noon degrees departure Diff difference of latitude difference of longitude dist east equation Example fixed star Greenwich Half sum hence horizontal parallax hypothenuse King's Island leg AC mean merid meridian meridian of Greenwich meridional altitude meridional difference middle latitude miles minutes moon's apparent altitude Moon's reduced Moon's true natural number natural versed sine Nautical Almanac observed altitude perpendicular place of observation planet's Port Jackson Problem Prop proportional log radius reduced right ascension refraction required the true RULE secant seconds semi-diameter side A B spherical distance spherical triangle spherical trigonometry subtracted sun's declination sun's lower limb Sun's reduced right Sun's right ascension Table tangent true altitude true central altitude true central distance watch
Δημοφιλή αποσπάσματα
Σελίδα 19 - Given two sides and the included angle, to find the third side and the remaining angles. The sum of the required angles is found by subtracting the given angle from 180°. The difference of the required angles is then found by Theorem II. Half the difference added to half the sum gives the greater angle, and, subtracted, gives the less angle.
Σελίδα 484 - AZIMUTH, in astronomy, an arch of the horizon, intercepted between the meridian of the place and the azimuth, or vertical circle passing through the centre of the object, which...
Σελίδα 212 - For the purpose of measuring angles, the circumference is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; each minute into 60 equal parts called seconds.
Σελίδα 63 - And, if the logarithm of any number be divided by the index of its root, the quotient will be equal to the logarithm of that root. Thus the index or logarithm of 64 is 6 ; and, if this number be divided by 2, the quotient will be = 3, which is the logarithm of 8, or the square root of 64.
Σελίδα 63 - Also, between the mean, thus found, .and the nearest extreme, find another geometrical mean, in the same manner ; and so on, till you are arrived within the proposed limit of the number whose logarithm is sought.
Σελίδα 487 - ... reckoned from the north in north latitude, but from the south in south latitude. » In observations of the altitude of the sun'< loiter limb (by afore enervation) it is u«u»l to »<M 12' for tic cBecl of dip, parallax, ami sern diameter.
Σελίδα 159 - When there happens to be a remainder after the division ; or when the decimal places in the divisor are more than those in the dividend ; then ciphers may be annexed to the dividend, and the quotient carried on as far as required.
Σελίδα 681 - The Young Navigator's Guide to the Sidereal and Planetary Parts of Nautical Astronomy.
Σελίδα 649 - ... position with respect to a luminous body, can cast a circular shadow ; likewise all calculations of eclipses, and of the places of the planets, are made upon supposition that the earth is a sphere, and they all answer to the true times when accurately calculated. When an eclipse of the moon happens, it is observed sooner by those who live eastward than by those who live westward ; and, by frequent experience, astronomers have determined that, for every fifteen degrees difference of longitude,...
Σελίδα 183 - II. The sine of the middle part is equal to the product of the cosines of the opposite parts.