How to Find the Time At Sea in Less Than a Minute Being New And Accurate Method
How to Find the Time At Sea in Less Than a Minute Being New And Accurate Method
Alfred Challice Johnson
The book How to Find the Time At Sea in Less Than a Minute Being New And Accurate Method was written by author Alfred Challice Johnson Here you can read free online of How to Find the Time At Sea in Less Than a Minute Being New And Accurate Method book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is How to Find the Time At Sea in Less Than a Minute Being New And Accurate Method a good or bad book?
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(2. ) lh. 21 m. 303. (3. ) 2h. 40m. 13s. (4. ) lh. 59m. J7s.
14 The M Z. D. And N. , having been previously determined ; to find the Hour-Angle.
(1. ) M. Z. D. 50' X. 295 Alt. 20 9 H. A. About. 3 hoars. (2. ), . 48 X. 1216 „ 17 „ „ 4£ „ (». „ 45 X. 312<$ „ 15 „, 6§ „ . AXSWERS. (1. ) 8h. 9m: 12s. (2. ) 4h. 20m. 54s. (3. ) 5h. 41m. 52s.
Correcting Log. Table D, for Minutes.
(1. ) M. Z. D. 10' Alt. 40* 20' 42. ) „ 20 „ 13 20 (8. J „ 30 „ 20 4h AXHWBRS. (1. ) 32*4. (2. ) 5889. (». ) "iW. I.
Correcting the Longitude, for an Error in Latitude.
11. ) La*. 50" X. Bearing S. 00' E. Coir, for hat. 2W X.
(2. ) „ 40 S. „ S. 70 W. „ 10 »S.
(3. ) „ 20 X. „ X. 75 h. „ 15 N.
AXSWEHS-CORUECTIOXS. (J. ) 18' E. (2. ) 5'E. (3. ) 4'W.
EXPLANATION OF THE TABLES.
Wlten a logarithm has to be taken out in two parts, place the forefinger of i^e left-hand on one part and the pen on the other, when the tipo parts ore easily added together at night* • Tho parts for the minutes seldom exceed two figure*, and frequently only a single figure fc reruired to be added.
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