Training in celestial navigation
Clasification Society 2024 - Version 9.40

Training in celestial navigation

  19 The following areas summarize the recommended training in celestial navigation:

  • .1 correctly adjust sextant for adjustable errors;

  • .2 determine corrected reading of the sextant altitude of celestial bodies;

  • .3 accurate sight reduction computation, using a preferred method;

  • .4 calculate the time of meridian altitude of the sun;

  • .5 calculate latitude by Polaris or by meridian altitude of the sun;

  • .6 accurate plotting of position line(s) and position fixing;

  • .7 determine time of visible rising/setting sun by a preferred method;

  • .8 identify and select the most suitable celestial bodies in the twilight period;

  • .9 determine compass error by azimuth or by amplitude, using a preferred method;

  • .10 nautical astronomy as required to support the required competence in paragraphs 19.1 to 19.9 above.

  20 Training in celestial navigation may include the use of electronic nautical almanac and celestial navigation calculation software.

Parent topic: Section B-II/1 Guidance regarding the certification of officers in charge of a navigational watch on ships of 500 gross tonnage or more
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