Celestial Navigation

Course Length: 120 hours
Price: $2,500

This 11-day course covers the most common forms of position fixing by celestial bodies. Subjects include: the study of celestial bodies, their locations and apparent motion relative to an observer on Earth, their ephemera elements of the celestial sphere, concepts and use of time including predictions of celestial phenomena, nautical astronomy, sextant and altitude correction, sight reduction and lines of position, meridian transits, time of sunrise, sunset and noon, star identification and selection, sailings and ocean route planning. The course will encompass celestial theory derived from qualitative and quantitative analysis of the combined coordinate systems for reductions of celestial observations to lines of position. Celestial observations will be used to determine compass error. Studies will also involve practical application through the use of the sextant, azimuth ring, alidade, and other standard shipboard equipment and publications. Course is designed to enable the applicant to calculate and plot celestial observations to determine the vessels position, determine gyro and compass error by celestial observations and to determine the vessels position using terrestrial navigation practices. The objective of the course is to provide students with the detailed knowledge to support the training outcomes related to celestial navigation at the operational level and in doing so, satisfy company, national and international regulations for candidates for certification as Officer in Charge of a Navigational Watch as follows: 1. STCW Code A-ll/l Celestial Navigation; and 2. USCG 46 CFR 10.910 Table 10.910-2 Celestial Observations and Times of Celestial Phenomena.

Upon completion of this course, the students will be knowledgeable of and have a proficiency in the following areas:

  1. Solar System
  2. Celestial Sphere
  3. Equinoctial System Co-Ordinates
  4. Hour Angles; Nautical Almanac
  5. Daily Motion And Horizon System Co-Ordinates
  6. Sextant and Altitude Corrections
  7. Amplitudes
  8. Time and Equation of Time
  9. Latitude of Meridian Altitude
  10. Pole Star Observation; and Position Fixing

Any applicant who has successfully completed your 120-hour Celestial Navigation (Operational Level) course will satisfy ONE of the following:

  1. The Celestial Navigation training requirements for certification as Officer in Charge of a Navigational Watch on vessels of 500 or more gross tonnage (ITC); or
  2. If presented within one year of the completion of training, the Celestial Navigation Problems and the Navigation General examination requirements to increase the scope of a license as Mate 500/1600 Gross Tons from Near Coastal to Oceans (exam modules 186XX and 187XX); or
  3. If presented within one year of the completion of training, the Celestial Navigation Problems and the Navigation Problems examination requirements to increase the scope of a license as Mate, Offshore Supply Vessels, from Near Coastal to Oceans (exam modules 166XX, 176XX and 186XX); or

In conjunction with this course, any approved instructor is authorized to sign-off for a successful demonstration on the students’ “Control Sheets” for assessments OICNW-1-1A; OICNW-1-1B; OICNW-1-1E; and OICNW-1-1F from the National Assessment Guidelines for Table A-II/1 of the STCW Code

Course Tools Required

A clear mind ready to learn and retain a large volume of information.
Paper and pencil for note taking
A scientific calculator
Plotting tools

Celestial Navigation (Operational Level)