The Elements of Navigation a Short And Complete Explanation of the Standard Met
The Elements of Navigation a Short And Complete Explanation of the Standard Met
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In our eReader you can find the full English version of the book. Read The Elements of Navigation a Short And Complete Explanation of the Standard Met Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Elements of Navigation a Short And Complete Explanation of the Standard Met
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97 s. The student will observe that in making these corrections it is very convenient to use hours and decimal fractions of hours. Remember that 6 minutes are . 1 of an hour ; 6 sec. = . 1 min. For instance, 4 hrs. , 42 min. =4. 7 hrs. ; 4 hrs. , 15 min. , = 4. 25 hrs. In making the correction for decli- nation it is not necessary to trouble your- self about a minute of time more or less. In correcting the equation, especially when you come to longitude observations, be ac- curate, for every se...cond counts. LATITUDE BY MERIDIAN ALTITUDE A meridian altitude is one taken when the celestial body observed bears true south or north of the observer, or is pre- cisely above the meridian of longitude on 95 which he stands. In the case of the sun this is at apparent noon. A meridian altitude gives the most ac- curate latitude, for reasons which will here- after be explained. The general formula for a meridian alti- tude is lat. = zenith distance + or dec- lination. Zenith distance is the distance, measured in degrees, from the point precisely over the observer's head to the observed body.
What to read after The Elements of Navigation a Short And Complete Explanation of the Standard Met?
You can find similar books in the "Read Also" column, or choose other free books by W J William James Henderson to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
97 s. The student will observe that in making these corrections it is very convenient to use hours and decimal fractions of hours. Remember that 6 minutes are . 1 of an hour ; 6 sec. = . 1 min. For instance, 4 hrs. , 42 min. =4. 7 hrs. ; 4 hrs. , 15 min. , = 4. 25 hrs. In making the correction for decli- nation it is not necessary to trouble your- self about a minute of time more or less. In correcting the equation, especially when you come to longitude observations, be ac- curate, for every se...cond counts. LATITUDE BY MERIDIAN ALTITUDE A meridian altitude is one taken when the celestial body observed bears true south or north of the observer, or is pre- cisely above the meridian of longitude on 95 which he stands. In the case of the sun this is at apparent noon. A meridian altitude gives the most ac- curate latitude, for reasons which will here- after be explained. The general formula for a meridian alti- tude is lat. = zenith distance + or dec- lination. Zenith distance is the distance, measured in degrees, from the point precisely over the observer's head to the observed body.
What to read after The Elements of Navigation a Short And Complete Explanation of the Standard Met?
You can find similar books in the "Read Also" column, or choose other free books by W J William James Henderson to read onlineMoreLess
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