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Oceans Navigation-Celestial Navigation (HOUSTM-107)

Please find the full course description further down the page.

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  • Duration

    11 days

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  • Price

    USD 1,250.00

    Excl. extras

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Oceans Navigation-Celestial Navigation (HOUSTM-107)


Any student that has successfully completed this course will be able to:
• Perform piloting techniques such as distance off and bearing problems
• Explain the principles, operation, and maintenance of magnetic and gyrocompasses
• Describe the features and use of nautical charts
• Understand the use of navigation instruments and accessories
• Describe and explain the use of aids to navigation in the IALA-A and B systems
• Describe the purpose and use of Sailing Directions and other navigation publications
• Define nautical astronomy and navigation terms and identify and select stars
• Determine compass error by amplitude, azimuth, and terrestrial
• List the features of ocean current systems
• Describe the characteristics of weather systems
• Explain the features of tides and tidal currents
• List the basic principles of watchkeeping
• Describe elements of the Navigation Safety Regulations (33 CFR 164)
• Find latitude by Polaris and by meridian transit
• Determine fix and running fix by celestial observation
• Determine zone of sun rise/set/twilight
• Adjust the sextant and correct for errors
• Measure the altitude of the sun and other stars
• Determine time of Meridian Transit and latitude by Meridian Transit
• Solve great circle, parallel, mid-latitude, great circle sailing
problems, and Mercator sailing problems
• Calculate tide and tidal current problems

Target Group

Any applicant who has successfully completed your Oceans Navigation / Celestial Navigation (500/1600 Tons) (HOUSTM-107) course will satisfy the professional examination requirements for increasing the scope of the following endorsements from near coastal to oceans: Second or Third Mate of self-propelled vessels of unlimited tonnage; AND Master or Mate of self-propelled vessels of less than 500 or 1600 ORT; AND Master or Mate of self-propelled vessels of less than 200 ORT; AND Master or Mate of Uninspected Fishing Industry Vessels; AND The Celestial Navigation training requirements of 46 CFR 11.309(a)( 4)(viii) for an STCW endorsement as OICNW on vessels of 500 GT; AND The Celestial Navigation standards of competence required by 46 CFR l 1.309(a)(3); AND The Celestial Navigation standards of competence required by STCW Code Section A¬II/1 and Tables A-II/1, as amended 2010, meeting the National Assessment Guidelines from NVICs 12-14(Ch-3) and 02-18 Tasks 1.1.A, 1.1.B, 1.1.C, 1.1.D, 1.1.E, and 1.1.F


Students must hold a mate's license or higher and be able to read and write.


In order to successfully complete this course, each candidate must obtain a grade percentage of not less than 80% on the Navigation Problems: Oceans exam (15 questions); and 70% on the Navigation General: Oceans exam (70 questions).

Course Contents

This 11 day (80 hours) course covers the following contents:
- Terrestrial Foundations for Ocean Navigation - Parallel and Mercator Sailing
- Nautical Astronomy - Mid-Latitude Sailing
- The Celestial Equator Coordinate System - Great Circle Sailing
- The Horizon Coordinate System - ETA
- The Navigation Triangle - Amplitude
- Time - Azimuth
- Time of Meridian Transit - Tide and Current Calculations
- Latitude at Meridian Transit - Weather
- Zone of Time of Sunrise/Sunset/Twilight - Basic Principles of Watchkeeping
- Sextants and Altitude Correction - Ocean Currents
- Nautical Almanac - Compasses
- Circles of Equal Altitude and Altitude Intercept - Charts
- Solving Navigation Triangles - Distance Off/Bearing Problems
- Fix/Running - Sun - Instruments and Accessories
- Fix/Running - Star - Navigation Safety Regulations
- Latitude by Polaris
- Star/Planet Identification and Selection

  • Maritime

Contact information


209 Clendenning Road, Houma, LA 70363, United States of America

+1 985 868 1860

Opens in 11 hours and 53 minutes

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