THIS BOOK WAS REVISED ON 10/19/2020; we have developed this series of training manuals to assist the Merchant Mariner in passing the U.S. Coast Guard Licensing Examinations, from Master 500 GT to 2nd mate Unlimited upon Oceans. These manuals have been developed to augment our current textbooks for Mariners and are modular in design, incorporating practical exercises and actual U.S. Coast Guard examination questions with all questions worked-out.A description of each manual follows: Volume III: Celestial Navigation Calculations worked-out for Master 500 GT through 2nd Mate Unlimited Upon Oceans Endorsement. Volume III provides an in-depth understanding of the Celestial Calculation found on the US Coast Guard Merchant Mariner Examinations through 2nd Mate Unlimited. Chapter 1, The Sailings, Parallel, Mid-Latitude, Mercator, and Great Circle.Chapter 2 Time Zone calculations (Sunrise and Sunset, Time Tick, Time of Meridian Transit, and Estimated Time of Arrival).Chapter 3, Deviation by Celestial Observation (Amplitude and Azimuth).Chapter 4, Latitude Observations (Local Apparent Noon and Latitude by Polaris). Chapter 5, Sight Reduction - Running Fixes (any body). Chapter 6, Star Identification, and Star and Planet Selection. Chapter 6, Sight Reduction - Running Fixes (any body.) Chapter 7, Miscellaneous Problems (Ho, He, and intercept).To see all Marine Navigation Publications offered by this author, click on author's name above. Last Review and update 10-19-202