Book
Johnson Alfred Challice
How to find the time at sea in less than a minute being new and accurate methods with specially adapted tables
J.D. Potter, 1907
35.00 €
Barbacane Libri (Udine, Italy)
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Details
Description
CONTENTS
To find the time by table (D)
How to find the longitude simultaneously with the latitude at noon
To find the position at noon by chart
To explain how the time may be found in a few seconds
Applcation to finding the position by two observations
To find the time simultaneously with the altitude
Finding the time by tables (A) (B) (C)
Time by a star
To correct log. from table (D) for minutes
To correct the longitude for error in latitude
Examples for practice
Explanation of tables
Tables for correcting the observed altitude
Table (A) (B) (C)
Table (D)
Table (E)
Notes
Application of tables (A) (B) (C) to finding the altitude azimuth and also the times of sunrise and sunset