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 sider |
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Side v
... sine declination - 10.0000000 = log . sine amplitude . Table VIII . contains the right ascensions and declinations of one hundred and eighty stars of the first , second , and third magnitudes , with their annual variations , adapted to ...
... sine declination - 10.0000000 = log . sine amplitude . Table VIII . contains the right ascensions and declinations of one hundred and eighty stars of the first , second , and third magnitudes , with their annual variations , adapted to ...
Side vi
... sine D's altitude This table agrees nearly with that published by Maskelyne . Table XVI . contains the dip for various distances and heights , calculated by this rule , 3 h D = d + 0.56514 × d in which D represents the dip in miles or ...
... sine D's altitude This table agrees nearly with that published by Maskelyne . Table XVI . contains the dip for various distances and heights , calculated by this rule , 3 h D = d + 0.56514 × d in which D represents the dip in miles or ...
Side vii
... sine H - 4.6989700 . = log . versed sine H - 5.0000000 . Log . rising H2 log . sine H - 14.6989700 . By means of these formulas , the numbers of Table XXIII . were calculated by Sherwin's , Hutton's , and Taylor's logarithms , and above ...
... sine H - 4.6989700 . = log . versed sine H - 5.0000000 . Log . rising H2 log . sine H - 14.6989700 . By means of these formulas , the numbers of Table XXIII . were calculated by Sherwin's , Hutton's , and Taylor's logarithms , and above ...
Side viii
... sine Alog . sine observed angle + log . cosine of error of inciination . Then the difference between 2 A and the observed angle will be the tabular correction . Table XXXVI . contains the variation of the mean refraction ( given in ...
... sine Alog . sine observed angle + log . cosine of error of inciination . Then the difference between 2 A and the observed angle will be the tabular correction . Table XXXVI . contains the variation of the mean refraction ( given in ...
Side ix
... sine arg . Table XLIV . Part I. 8 " .1845 sine arg . Part II . = ( arg . in seconds ) 2 960 " Part III . 960 " X sine D's par . in lat . X tang . D's true lat . - 960 " X versed sine par . in lat . If we suppose the sum of these three ...
... sine arg . Table XLIV . Part I. 8 " .1845 sine arg . Part II . = ( arg . in seconds ) 2 960 " Part III . 960 " X sine D's par . in lat . X tang . D's true lat . - 960 " X versed sine par . in lat . If we suppose the sum of these three ...
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The New American Practical Navigator; Being an Epitome of Navigation ... Nathaniel Bowditch Ingen forhåndsvisning tilgjengelig - 2015 |
Vanlige uttrykk og setninger
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
Populære avsnitt
Side 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.
Side 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.
Side 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°...
Side 10 - In like manner, when it is said, that " triangles on the same base, and between the same parallels, are equal...
Side 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...
Side 29 - To find the logarithm of a vulgar fraction. RULE. Subtract the logarithm of the denominator from the logarithm of the numerator...
Side 6 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc.
Side 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.
Side 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.
Side 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.