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 i
... METHODS OF CALCULATING ECLIPSES OF THE SUN AND MOON , AND OCCULTATIONS OF THE FIXED STARS ; RULES FOR FINDING THE ... METHOD FOR FINDING THE LATITUDE BY TWO ALTITUDES . BY NATHANIEL BOW DITCH , LL . D. Follow of the Royal Societies of ...
... METHODS OF CALCULATING ECLIPSES OF THE SUN AND MOON , AND OCCULTATIONS OF THE FIXED STARS ; RULES FOR FINDING THE ... METHOD FOR FINDING THE LATITUDE BY TWO ALTITUDES . BY NATHANIEL BOW DITCH , LL . D. Follow of the Royal Societies of ...
Side iii
... method of calculating the altitude and longitude of the nonagesimal degree of the ecliptic ; solutions of several ... method of finding the latitudes by two altitudes of the same or of different objects , being M537664 M53 an improvement ...
... method of calculating the altitude and longitude of the nonagesimal degree of the ecliptic ; solutions of several ... method of finding the latitudes by two altitudes of the same or of different objects , being M537664 M53 an improvement ...
Side iv
... method of working a lunar observation , published in that Appendix , which has one great advantage over all other approximate methods , in the manner of applying the corrections , ( all of them being additive , ) is here explained and ...
... method of working a lunar observation , published in that Appendix , which has one great advantage over all other approximate methods , in the manner of applying the corrections , ( all of them being additive , ) is here explained and ...
Side xiii
... method of calculating double altitudes Second method ..... Third method ... Questions to exercise the learner in working double altitudes . Fourth method , when the declinations are different ..... Fifth method , to find the latitude ...
... method of calculating double altitudes Second method ..... Third method ... Questions to exercise the learner in working double altitudes . Fourth method , when the declinations are different ..... Fifth method , to find the latitude ...
Side xv
... method .... XLVIII . Third correction in Lyons's improved method XLIX . Correction for a planet whose horizontal parallax is 35 ′′ . L. Reduction to any other parallax ............... . Page . 251 .... 253 275 326 328 329 329 330 332 ...
... method .... XLVIII . Third correction in Lyons's improved method XLIX . Correction for a planet whose horizontal parallax is 35 ′′ . L. Reduction to any other parallax ............... . Page . 251 .... 253 275 326 328 329 329 330 332 ...
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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.