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Description of Individual Course Units| Course Unit Code | Course Unit Title | Type of Course Unit | Year of Study | Semester | Number of ECTS Credits | | DUİM2092016252 | CELESTIAL NAVIGATION | Compulsory | 2 | 3 | 5 |
| | Level of Course Unit | | First Cycle | | Objectives of the Course | | Providing better knowledge and skill to navigator for understanding (finding) the ship's position on the open sea without using any electronic navigation aids, just to use celestial marks for safety of navigation. | | Name of Lecturer(s) | | | Learning Outcomes | | 1 | describe the elements of the spherical triangle. | | 2 | solve sunset and sunrise problems of sun and moon. | | 3 | evaluate the results of time zones and time equation. | | 4 | describe SHA, LHA and Aries and relationships. | | 5 | explain usage of sextant. | | 6 | use the pre-calculated and calculator logarithms tables. |
| | Mode of Delivery | | Formal Education | | Prerequisites and co-requisities | | None | | Recommended Optional Programme Components | | None | | Course Contents | | Introduction to celestial navigation, solar system and planets, earth's orbit and seasons, tropics, earth's rotation, reasons for changing the duration of the day light, sunset and sunrise of sun and moon, celestial sphere and coordinates, the elements of the spherical triangle, different kinds of times, time zones and time equation, definitions of SHA, LHA and Aries and relationships. Optical principles of sextant, usage of sextant, sextant errors, corrections of sextant errors, index error and finding the index error, corrections to be applied sextant altitudes. Finding the time of meridian passages of the sun, moon and planets, finding the latitude and longitude by meridian passage of the sun. Star identification. Finding the latitude by polaris observation. Calculation of the position lines by using calculator logarithms and pre-calculated tables. Finding the compass error by astronomical observations. Life boat navigation. | | Weekly Detailed Course Contents | |
| 1 | Introduction of solar system and celestial navigation. Earth's orbit and seasons, tropics, earth's rotation, reasons for changing the duration of the day light. | | | | 2 | Celestial sphere and coordinate system. North and South celestial poles. Observer's meridian and latitude. Definitions of Colat, Codec and Polar Distance. | | | | 3 | Definitions of Aries, Libra, Aries hour angle and hour angle. Definitions of altitude circle, vertical circle and prime vertical circle. | | | | 4 | Definitions of Altitude, Coalt, Zenith, Nadir. Definitions of Celestial horizon and Celestial ecuador. | | | | 5 | Zenith Distance, difference between Azimuth and true bearing, measurement of azimuth and conversion to true bearing.Definition of horizon and types. | | | | 6 | Concepts of hour angle, definition of hour angle and types. Definition of SHA, GHA and LHA. Calculation of SHA, GHA and LHA using notic almanac. | | | | 7 | Different kinds of times, time zones and time equation. Calculation of twilight, sunrise and sunset time. | | | | 8 | Mid-term exam | | | | 9 | Optical principles of sextant. Usage of sextant, sextant errors. | | | | 10 | Corrections of sextant errors, index error and finding the index error. Corrections to be applied sextant altitudes. | | | | 11 | Solutions of sextant altitude problems. Finding the time of meridian passages of the sun, moon and planets. | | | | 12 | Finding the latitude and longitude by meridian passage of the sun. Usage of the star identification. Finding the latitude by polaris observation | | | | 13 | Calculation of the position lines sun and moon by using calculator logarithms and pre-calculated tables | | | | 14 | Calculation of the position lines sun and moon by using calculator logarithms and pre-calculated tables | | | | 15 | Life boat navigation with celestial navigation technics. | | | | 16 | End-of-term exam | | |
| | Recommended or Required Reading | | Bowditch, N. 2002; The American Practical Navigator, National Imagery and Mapping Agency, Maryland, USA
TÜDEV, 2000; Astronomik Seyir, TÜDEV Yayınları, Türkan Matbaası, İstanbul
Baytura, S., 2000; Astronomi Seyri, TÜDEV Yayınları, No: K4/ 2000, İstanbul
Baytura, S. 2003; Problem ve Yanıtlarıyla Astronomi Seyri, TÜDEV Yayınları, Cilt II, İstanbul
Sügen, Y. 2003; Kaptanın Kılavuzu, Beta Yayınları, İstanbul
| | Planned Learning Activities and Teaching Methods | | | Assessment Methods and Criteria | |
| SUM | 0 | |
| SUM | 0 | | Yarıyıl (Yıl) İçi Etkinlikleri | 40 | | Yarıyıl (Yıl) Sonu Etkinlikleri | 60 | | SUM | 100 |
| | Language of Instruction | | Turkish | | Work Placement(s) | | None |
| | Workload Calculation | |
| Midterm Examination | 1 | 1 | 1 | | Final Examination | 1 | 1 | 1 | | Attending Lectures | 14 | 3 | 42 | | Practice | 14 | 1 | 14 | | Self Study | 5 | 4 | 20 | | Individual Study for Mid term Examination | 7 | 4 | 28 | | Individual Study for Final Examination | 7 | 5 | 35 | |
| Contribution of Learning Outcomes to Programme Outcomes | | LO1 | 2 | 1 | 5 | 2 | 5 | 3 | 5 | 2 | 2 | 1 | 2 | 1 | | LO2 | 2 | 2 | 5 | 2 | 5 | 2 | 5 | 2 | 2 | 5 | 5 | 2 | | LO3 | 2 | 1 | 5 | 2 | 5 | 1 | 5 | 1 | 1 | 2 | 5 | 2 | | LO4 | 1 | 2 | 4 | 1 | 4 | 2 | 5 | 2 | 2 | 5 | 2 | 1 | | LO5 | 3 | 2 | 5 | 2 | 5 | 3 | 4 | 2 | 1 | 2 | 3 | 2 | | LO6 | 2 | 2 | 4 | 2 | 5 | 2 | 5 | 2 | 4 | 2 | 3 | 2 |
| | * Contribution Level : 1 Very low 2 Low 3 Medium 4 High 5 Very High |
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