The New American Practical Navigator; Being an Epitome of Navigation; Containing All the Tables Necessary to be Used with the Nauticl AlmanacE. & G.W. Blunt, 1846 - 451 σελίδες |
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Αποτελέσματα 1 - 5 από τα 100.
Σελίδα vii
... declination by these formulas ; Log . A = log . 1 " .96349 + 2 log . cos . declination - 20.00000 , Log . Blog . A + log . tang . declination 10.00000 ; and then the correction of the table corresponding to the zenith distance Z ( lat ...
... declination by these formulas ; Log . A = log . 1 " .96349 + 2 log . cos . declination - 20.00000 , Log . Blog . A + log . tang . declination 10.00000 ; and then the correction of the table corresponding to the zenith distance Z ( lat ...
Σελίδα xiv
... declination IV . A. Equation of time .. V. For reducing the sun's declination . VI . Sun's right ascension .... VI . A. Correction for the daily variation of the equation of time . VII . Amplitudes ..... VIII . Right ascensions and ...
... declination IV . A. Equation of time .. V. For reducing the sun's declination . VI . Sun's right ascension .... VI . A. Correction for the daily variation of the equation of time . VII . Amplitudes ..... VIII . Right ascensions and ...
Σελίδα xv
... declination XLVII . Logarithms in Lyons's improved method .... XLVIII . Third correction in Lyons's improved method ... declination ..... Problem XIX . Given the right ascension and declination , to find the longitude and latitude 434 ...
... declination XLVII . Logarithms in Lyons's improved method .... XLVIII . Third correction in Lyons's improved method ... declination ..... Problem XIX . Given the right ascension and declination , to find the longitude and latitude 434 ...
Σελίδα 48
... declination passing through the body , measured according to the order of the signs . Right ascension of the meridian , or mid - heaven , is the distance of the meridian from the first point of Aries , and is found by adding the ...
... declination passing through the body , measured according to the order of the signs . Right ascension of the meridian , or mid - heaven , is the distance of the meridian from the first point of Aries , and is found by adding the ...
Σελίδα 149
... declination , and differing nearly twelve hours in right ascension , by observing the one above , and the other below the pole . Then it is evident that any deviation in the instrument from the meridian , will produce contrary effects ...
... declination , and differing nearly twelve hours in right ascension , by observing the one above , and the other below the pole . Then it is evident that any deviation in the instrument from the meridian , will produce contrary effects ...
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Άλλες εκδόσεις - Προβολή όλων
The New American Practical Navigator; Being an Epitome of Navigation ... Nathaniel Bowditch Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
Συχνά εμφανιζόμενοι όροι και φράσεις
anchor apparent altitude azimuth bearing cable calculation central index centre chord chronometer circle column compass Corr correct central altitude corresponding Cosec cosine degrees diameter diff difference of latitude difference of longitude Dist divided draw elapsed equal equator error EXAMPLE feet given Greenwich Half-sum horizon glass horizontal parallax hour angle hypotenuse instrument latitude and departure line of numbers line of sines logarithm lower limb mast mean meridian altitude method middle latitude miles minutes moon moon's multiplied Nautical Almanac nearly noon object observed altitude obtained parallel Parallel Sailing passing the meridian perpendicular Plane Sailing points polar distance pole quadrant radius 90 refraction right ascension rule screw sea account secant semidiameter sextant ship ship's side star subtracted sun's declination Suppose taken tangent telescope triangle true altitude true distance true longitude variation wind wires zenith distance
Δημοφιλή αποσπάσματα
Σελίδα 9 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Σελίδα 299 - Calm Light air Light breeze Gentle breeze Moderate breeze Fresh breeze Strong breeze Moderate gale Fresh gale Strong gale Whole gale Storm Estimatin Observations at sea Sea like mirror.
Σελίδα 156 - ... or taking their difference when of contrary names ; the altitude to be reckoned from the south point of the horizon, when the latitude is north, and the contrary when south ; but when the sum exceeds 90°, it is to be taken from 180°...
Σελίδα 10 - In like manner, when it is said, that " triangles on the same base, and between the same parallels, are equal...
Σελίδα 102 - If the vessel be double-decked, take the length thereof from the fore part of the main stem, to the after part of the stern post, above the upper deck ; the breadth thereof at the broadest part above the main wales...
Σελίδα 29 - To find the logarithm of a vulgar fraction. RULE. Subtract the logarithm of the denominator from the logarithm of the numerator...
Σελίδα 6 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc.
Σελίδα 119 - Fiini will be the time of high water, at the given place, reckoning from the noon of the given day. If this sum be greater than 12h.
Σελίδα 290 - Davit ; a long beam of timber, used as a crane, whereby to hoist the flukes of the anchor to the top of the bow, without injuring the planks of the ship's sides as it ascends.
Σελίδα 11 - KCML, the sum of the two parallelograms or square BCMH ; therefore the sum of the squares on AB and AC is equal to the square on BC.