SPECIMEN EXAMINATION 



FOR 



MASTER 



1. LATITUDE BY POLARIS. 



On 26 August 1958, in D. R. Longi- 

 tude 36°-10' West, Polaris was observed 

 at evening twilight to have a sextant 

 altitude of 23°-25' and a bearing of 

 001° by gyro-compass. The chronometer 

 read 9h-26m-40s. The chronometer was 



lm-50s slow. The sextant error was I'.O 

 on the arc. The height of eye was 30 

 feet. 



Required : 



The latitude at time of sight. 



The gyro-compass error. 



3. FIX OR RUNNING FIX. 



Enroute from Pago Pago, Samoa to Given the following information on the 

 San Francisco, in D. R. Latitude 2°-47' celestial bodies, determine the ship's 

 South and Longitude 161°-19' West, position, 

 three celestial bodies were observed. 



Body Observed Altitude Oreenwich Hour Angle Declination 



DENEBOLA 57°-54'.4 188'' -30' .4 14°-48'.9 N. 



VEGA 09°-48'.9 86°-25'.4 38°-44'.7 N. 



SATURN (Planet) 56''-24'.9 130°-34'.2 17°-20'.3 S. 



4. STAR IDENTIFICATION (any method). 



On 17 April 1956 at Latitude 13°-16' 

 North, Longitude 92°-38' East, a morn- 

 ing observation is taken at 22h-58m- 

 28S-GMT of a star whose corrected 



altitude is 41°-53'.2 and whose azimuth 

 187°.7 True. 

 Required: Identify the star. 



Given: 



No. 1 



Date 7 January 1958 



GMT 01h-17m-23s 



Longitude 58°-20'.0 West 



Required: The Meridian Angle, Hori- 

 zontal Parallax, and Declination of the 

 Moon in each of the three cases. In- 



No.S 



31 May 1958 

 llh-47m-02s 

 149°-49'.0 East 



No.S 



23 September 1958 

 20h-02m-20s 

 20°-39'.0 West 



dicate whether the Moon is East or 

 West of the Meridian in each case. 



Given: 



No. 1 

 Vgtius 



Date 2 January 1958 



GMT 3h-47m-22s 



Longitude 123°-47'.0 West 



Required: The Meridian Angle and 

 Declination of the Planet in each of the 

 three cases. Indicate whether the planet 



is East or West of the Meridian in each 

 case. 



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