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 pages |
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Page ii
... East coast of Mexico , Florida Keys , Salt Key Bank , & c . , have been altered to correspond with the latest observa- tions . I have consulted Raper , Blunt , & c . From Capt . Barnett , R. N. , the positions of the following places ...
... East coast of Mexico , Florida Keys , Salt Key Bank , & c . , have been altered to correspond with the latest observa- tions . I have consulted Raper , Blunt , & c . From Capt . Barnett , R. N. , the positions of the following places ...
Page 45
... eastern part of her orbit , she shines in the evening , after he sets , and is called the evening star . The next planet is the EARTH , the diameter ... east to west in the same time , and 45 A short introduction to astronomy and geography.
... eastern part of her orbit , she shines in the evening , after he sets , and is called the evening star . The next planet is the EARTH , the diameter ... east to west in the same time , and 45 A short introduction to astronomy and geography.
Page 47
... east , and then to stand still ; then they would seem to move from east to west ; and , after standing some time , they would again move from west to east ; and so on , continually . The motion of a planet from west to east is called ...
... east , and then to stand still ; then they would seem to move from east to west ; and , after standing some time , they would again move from west to east ; and so on , continually . The motion of a planet from west to east is called ...
Page 48
... east and west ; that lying to the east is called the eastern hemisphere , and the other the western hemisphere . When the sun is at its greatest altitude on the meridian of any place , it is noon , or mid - day . The azimuth of a ...
... east and west ; that lying to the east is called the eastern hemisphere , and the other the western hemisphere . When the sun is at its greatest altitude on the meridian of any place , it is noon , or mid - day . The azimuth of a ...
Page 48
... east to west ; consequently , the heavenly bodies appear to move forward the same quantity from west to east . The annual variations of the places of the stars from precession , and the secular equations arising from the change of the ...
... east to west ; consequently , the heavenly bodies appear to move forward the same quantity from west to east . The annual variations of the places of the stars from precession , and the secular equations arising from the change of the ...
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The New American Practical Navigator; Being an Epitome of Navigation ... Nathaniel Bowditch No preview available - 2015 |
Common terms and phrases
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
Popular passages
Page 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.
Page 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.
Page 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°...
Page 10 - In like manner, when it is said, that " triangles on the same base, and between the same parallels, are equal...
Page 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...
Page 29 - To find the logarithm of a vulgar fraction. RULE. Subtract the logarithm of the denominator from the logarithm of the numerator...
Page 6 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc.
Page 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.
Page 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.
Page 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.