Practice of navigation and nautical astronomy, 43±Ç1872 - 571ÆäÀÌÁö |
µµ¼ º»¹®¿¡¼
49°³ÀÇ °á°ú Áß 1 - 5°³
1 ÆäÀÌÁö
... Cosec . ..Cot . .. .D . .... Dec . 19. Difference ...... Diff . ... Dep . 20. Distance Dist . • B 23. Elapsed 24. Equation of Time Eq . T. 25. Great Circle .... G.C . 26. Greenwich .... Green . , G. 27. Hour ... H . 28. Hour angle ...
... Cosec . ..Cot . .. .D . .... Dec . 19. Difference ...... Diff . ... Dep . 20. Distance Dist . • B 23. Elapsed 24. Equation of Time Eq . T. 25. Great Circle .... G.C . 26. Greenwich .... Green . , G. 27. Hour ... H . 28. Hour angle ...
105 ÆäÀÌÁö
... cosec ..... 0.037442 50 9 45 Dip . - 4 17 Sum 2 ) 147 9 26 50 5 28 Half sum Corr . - 0 43 Diff . 73 34 43 23 14 12 COS . sin .... 9.451325 9.596080 Sem . ...... True alt . .. 50 20 31 H.A. Eq . T. 50 4 45 + 15 46 h . m . S. 2 56 17 log ...
... cosec ..... 0.037442 50 9 45 Dip . - 4 17 Sum 2 ) 147 9 26 50 5 28 Half sum Corr . - 0 43 Diff . 73 34 43 23 14 12 COS . sin .... 9.451325 9.596080 Sem . ...... True alt . .. 50 20 31 H.A. Eq . T. 50 4 45 + 15 46 h . m . S. 2 56 17 log ...
106 ÆäÀÌÁö
... cosec .... 0.037492 Diff . .. 91 .... 50 55 P.D. , 66 32 55 cosec .... 0 ¡¤ 037442 455 455 and the sine . 50,05 The diff . for the cosecant is taken out between it Multiply the diff . by the number of seconds in the P.D .; that is , in ...
... cosec .... 0.037492 Diff . .. 91 .... 50 55 P.D. , 66 32 55 cosec .... 0 ¡¤ 037442 455 455 and the sine . 50,05 The diff . for the cosecant is taken out between it Multiply the diff . by the number of seconds in the P.D .; that is , in ...
108 ÆäÀÌÁö
... cosec ..... 0.033312 COS . sin .... .... 31 20 39 17 log . 2 23 31 20 36 54 1 3 35 59 6 59 5 60 180 4 ) 419 185 60 9.629364 9.568645 .... 9.254832 9.25487 S. 4 = 1 NOTE 1. This is an A.M. observation , in which Longitude ..... 104 ¡Æ 46 ...
... cosec ..... 0.033312 COS . sin .... .... 31 20 39 17 log . 2 23 31 20 36 54 1 3 35 59 6 59 5 60 180 4 ) 419 185 60 9.629364 9.568645 .... 9.254832 9.25487 S. 4 = 1 NOTE 1. This is an A.M. observation , in which Longitude ..... 104 ¡Æ 46 ...
109 ÆäÀÌÁö
... cosec . , log . cos . , and log , sin . , to seconds of arc . 18 O 67 50 0 ccsec . ... 0.033347 35 67 50 41 cosec . .... 0.033312 Diff . 86 41 - 86 344 35,26 64 47 COS ....... 9.629453 Diff . 447 89 20 64 47 20 COS . ...... 9.629364 89 ...
... cosec . , log . cos . , and log , sin . , to seconds of arc . 18 O 67 50 0 ccsec . ... 0.033347 35 67 50 41 cosec . .... 0.033312 Diff . 86 41 - 86 344 35,26 64 47 COS ....... 9.629453 Diff . 447 89 20 64 47 20 COS . ...... 9.629364 89 ...
ÀÚÁÖ ³ª¿À´Â ´Ü¾î ¹× ±¸¹®
A.M. at ship anchor azimuth backstays bearing by compass bills of lading Cape captain cargo chart charter Circle common logarithms Compass Course correct magnetic course Cosec Cosine Cotang course and distance decimal Declination Degrees Diff Difference of Latitude difference of longitude Dist dunnage East EXAMPLES fast for mean feet fore freight Frid given heeling error height of eye high water hour hour angle index error Latitude and Departure leeway Logarithmic Sines longitude by chronometer MATE mean noon Mercator chart miles noon at Greenwich North observed altitude observed meridian altitude parallel parallel ruler parallel sailing port required the latitude required the longitude required the true Right Ascension rope Rule sail Secant ship's head Signal South spars standard compass staysail steered subtract sun's lower limb Table Tangent Thur tide true course Tues Variation vessel West wind yard
Àαâ Àο뱸
312 ÆäÀÌÁö - ... abaft the beam on the starboard side, and of such a character as to be visible on a dark mght, with a clear atmosphere, at a distance of at least two miles. (c.) On the...
312 ÆäÀÌÁö - ... where it can best be seen, but at a height not exceeding twenty feet above the hull, a white light in a globular lantern of eight inches in diameter, and so constructed as to show a clear uniform and unbroken light visible all round the horizon, and at a distance of at least one mile.
321 ÆäÀÌÁö - On the starboard side, a green light so constructed as to show an uniform and unbroken light over an arc of the horizon of 10 points of the compass ; so fixed as to throw the light from right ahead to 2 points abaft the beam...
322 ÆäÀÌÁö - The said green and red side lights shall be fitted with inboard screens projecting at least three feet forward from the light, so as to prevent these lights from being seen across the bow. Art. 4. Steam ships when towing other ships shall carry two bright white mast-head lights vertically, in addition to their side lights, so as to distinguish them from other steam ships.
322 ÆäÀÌÁö - Vessels, be exhibited on their respective Sides in sufficient Time to prevent Collision, in such manner as to make them most visible, and so that the Green Light shall not be seen on the Port Side, nor the Red Light on the Starboard Side.
312 ÆäÀÌÁö - ... from right ahead to two points abaft the beam on the port side, and of such a character as to be visible at a distance of at least two miles.
312 ÆäÀÌÁö - Miles: (c.) On the Port Side, a Red Light, so constructed as to show an uniform and unbroken Light over an Arc of the Horizon of 10 Points of the Compass; so fixed as to throw the Light from right ahead to 2 Points abaft the Beam...
313 ÆäÀÌÁö - ... (c.) When both are running free, with the wind on different sides, the vessel which has the wind on the port side shall keep out of the way of the other.
311 ÆäÀÌÁö - In the following rules every steam vessel which is under sail and not under steam is to be considered a sailing vessel, and every vessel under steam, whether under sail or not, is to be considered a steam vessel. The words "steam vessel" shall include any vessel propelled by machinery. A vessel is "under way...
312 ÆäÀÌÁö - ... use : and shall, on the approach of or to other vessels, be exhibited on their respective sides in sufficient time to prevent collision, in such manner as to make them most visible, and so that the green light shall not be seen on the port side nor the red light on the starboard side, nor, if practicable, more than two points abaft the beam on their respective sides.